Or at least what the options wereYou can do this exactly as you did in ASP.
If you didn't want to continue using the querystring you could use cookies, sessions, or some other choices. But the querystring in a browser is a querystring in a browser - you can read one or create one just as you always did.
Encryption/Decryption with .NET
regards
But i m not using session variable in 2nd case. Ihv to pass the 2nd id in query string. But i want encryption and decruption for that or is that possible that quesry string not visile to end user.
I have an asp.net 2.0 web with a standard login control
I want to pass some extra variables to the redirected page after the successful login
I just can't get it to work. help much appreciated
--------------------------
Protected Sub Login1_Authenticate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.AuthenticateEventArgs) Handles Login1.Authenticate
Context.Items.Clear()
Context.Items.Add("UserNamevalue", Me.Login1.UserName)
Context.Items.Add("mydbkeyvalue", 2)
FormsAuthentication.RedirectFromLoginPage("steve", False)
Server.Transfer("~/memberpages/demos.aspx", True)
End If
Catch ex As Exception
Response.Write(ex.Message)
End Try
End Sub
---------------------------------------
In a link button onclick event on the demos.aspx
Me.lblsamupdate.Text = "Context " & Context.Items("UserNamevalue").ToString
I get error 'Object reference not set to an instance of an object'
Why???Hello Steve,
did you check that u have this variable in the context in receiver?
--
WBR,
Michael Nemtsev [.NET/C# MVP] :: blog: http://spaces.live.com/laflour
"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo
SHi All
S>
SI have an asp.net 2.0 web with a standard login control
S>
SI want to pass some extra variables to the redirected page after the
Ssuccessful login
S>
SI just can't get it to work. help much appreciated
S>
S---------------------
S------
S>
SProtected Sub Login1_Authenticate(ByVal sender As Object, ByVal e As
SSystem.Web.UI.WebControls.AuthenticateEventArgs) Handles
SLogin1.Authenticate
S>
SContext.Items.Clear()
S>
SContext.Items.Add("UserNamevalue", Me.Login1.UserName)
S>
SContext.Items.Add("mydbkeyvalue", 2)
S>
SFormsAuthentication.RedirectFromLoginPage("steve", False)
S>
SServer.Transfer("~/memberpages/demos.aspx", True)
S>
SEnd If
S>
SCatch ex As Exception
S>
SResponse.Write(ex.Message)
S>
SEnd Try
S>
SEnd Sub
S>
S---------------------
S-------------------
S>
SIn a link button onclick event on the demos.aspx
S>
SMe.lblsamupdate.Text = "Context " &
SContext.Items("UserNamevalue").ToString
S>
SI get error 'Object reference not set to an instance of an object'
S>
SWhy???
S>
Steve.
I don't see how you can expect this to work:
FormsAuthentication.RedirectFromLoginPage("steve", False)
Server.Transfer("~/memberpages/demos.aspx", True)
Your first line causes the browser to request the redirect page.
the second line (Server.Transfer) will never execute.
Also, you could either stick the items into a cookie(s) or put them in
Session.
-- Peter
// Abandon all hope, ye who enter here.
http://www.eggheadcafe.com
unBlog: http://petesbloggerama.blogspot.com
BlogMetaFinder: http://www.blogmetafinder.com
"Steve" wrote:
Quote:
Originally Posted by
Hi All
>
I have an asp.net 2.0 web with a standard login control
>
I want to pass some extra variables to the redirected page after the successful login
>
I just can't get it to work. help much appreciated
>
--------------------------
Protected Sub Login1_Authenticate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.AuthenticateEventArgs) Handles Login1.Authenticate
>
Context.Items.Clear()
>
Context.Items.Add("UserNamevalue", Me.Login1.UserName)
>
Context.Items.Add("mydbkeyvalue", 2)
>
FormsAuthentication.RedirectFromLoginPage("steve", False)
>
Server.Transfer("~/memberpages/demos.aspx", True)
>
End If
>
Catch ex As Exception
>
Response.Write(ex.Message)
>
End Try
>
End Sub
>
---------------------------------------
>
In a link button onclick event on the demos.aspx
>
Me.lblsamupdate.Text = "Context " & Context.Items("UserNamevalue").ToString
>
I get error 'Object reference not set to an instance of an object'
>
>
>
Why???
>
I'm new to asp.net obviously, and am working on trying to put together my first website. I need help passing variables across multiple forms then trying to query a sql database based on the data which is passed.
What I have is
page one, datalist with a button when clicked will redirect to a page in a directory protected using forms authentication, user will be redirected to log in, once logged in the are redirected to the original destination page.
page two, will show the items, and details of the page which corresponds to the button the visitor originally choose.
I know I basicly have to create something to grab the value on the original page, and then on the destination page create something to grab the value, then perform an SQL statement agianst the value which was orignally grabbed from the first page. I just cannot find code which I can understand to do this. Any help would be greatly appreciated!Well one step at a time will take you far places...
You can easily preserve the data in a form item by enabling viewstate on the form by adding the following syntax enabledviewstate="true" This uses more system resources though and should not be enabled for form items that do not need it.
You were saying that you want to pass data from here to there etc... Well in asp.net you really do not have to and can code your entire program into one asp.net which eliminates passing values to and from. Ever hear about asp.net panels? A good book I would recommend is ASP.NET UNLEASHED by: Stephen Walther, if you are just starting out... I will track this thread to see if you have any other Q's...
cheers
markmark wrote:
> I have a main form, and i have another form i need to call on a button
> press,
> then id like the result of the child form to pass data back to the parent -
> without losing any data previously entered
> on the parent - is this possible ? ( my main parent window is starting to
> get quite cluttered)
> cheers
> mark
The problem is in not losing the "parent" data... Are these windows open
in the same browser window or are you opening the "child" in a new
window? If its the same just save their existing data, in a
db/viewstate/session/etc, and then when you reload it retrieve it.
If not you will have to force the "parent" to postback to get it to
refresh, and with the viewstate enabled you should get the pre-entered
data to remain
--
Curt Christianson
site: http://www.darkfalz.com
blog: http://blog.darkfalz.com
Mark,
The standard way is to call javascript method showModalDialog for the child
form. The child form can pass back data in javascript window.returnValue
property which the parent form will get as a return value of the
showModalDialog call.
Eliyahu
"mark" <mark@.remove.com> wrote in message
news:1122386021.4716.0@.spandrell.news.uk.clara.net ...
> I have a main form, and i have another form i need to call on a button
> press,
> then id like the result of the child form to pass data back to the
parent -
> without losing any data previously entered
> on the parent - is this possible ? ( my main parent window is starting to
> get quite cluttered)
> cheers
> mark
Mark,
The standard way is to call javascript method showModalDialog for the child
form. The child form can pass back data in javascript window.returnValue
property which the parent form will get as a return value of the
showModalDialog call.
Eliyahu
"mark" <mark@.remove.com> wrote in message
news:1122386021.4716.0@.spandrell.news.uk.clara.net ...
> I have a main form, and i have another form i need to call on a button
> press,
> then id like the result of the child form to pass data back to the
parent -
> without losing any data previously entered
> on the parent - is this possible ? ( my main parent window is starting to
> get quite cluttered)
> cheers
> mark
> The problem is in not losing the "parent" data... Are these windows open
> in the same browser window or are you opening the "child" in a new
> window? If its the same just save their existing data, in a
> db/viewstate/session/etc, and then when you reload it retrieve it.
> If not you will have to force the "parent" to postback to get it to
> refresh, and with the viewstate enabled you should get the pre-entered
> data to remain
> --
> Curt Christianson
> site: http://www.darkfalz.com
> blog: http://blog.darkfalz.com
looks like ill be forced to save on opening the child, either that i
redesign the whole form to be more modular
problem is - i have to pass an ID to the child that doesnt exist until the
parent is saved - so things are getting more complicated
than in reality they should be
cheers
mark
"Eliyahu Goldin" <removemeegoldin@.monarchmed.com> wrote in message
news:OvYQHtekFHA.1464@.TK2MSFTNGP14.phx.gbl...
> Mark,
> The standard way is to call javascript method showModalDialog for the
child
> form. The child form can pass back data in javascript window.returnValue
> property which the parent form will get as a return value of the
> showModalDialog call.
> Eliyahu
got any examples ?
thanks
mark
> The problem is in not losing the "parent" data... Are these windows open
> in the same browser window or are you opening the "child" in a new
> window? If its the same just save their existing data, in a
> db/viewstate/session/etc, and then when you reload it retrieve it.
> If not you will have to force the "parent" to postback to get it to
> refresh, and with the viewstate enabled you should get the pre-entered
> data to remain
> --
> Curt Christianson
> site: http://www.darkfalz.com
> blog: http://blog.darkfalz.com
looks like ill be forced to save on opening the child, either that i
redesign the whole form to be more modular
problem is - i have to pass an ID to the child that doesnt exist until the
parent is saved - so things are getting more complicated
than in reality they should be
cheers
mark
"Eliyahu Goldin" <removemeegoldin@.monarchmed.com> wrote in message
news:OvYQHtekFHA.1464@.TK2MSFTNGP14.phx.gbl...
> Mark,
> The standard way is to call javascript method showModalDialog for the
child
> form. The child form can pass back data in javascript window.returnValue
> property which the parent form will get as a return value of the
> showModalDialog call.
> Eliyahu
got any examples ?
thanks
mark
cheers
markmark wrote:
> I have a main form, and i have another form i need to call on a button
> press,
> then id like the result of the child form to pass data back to the parent -
> without losing any data previously entered
> on the parent - is this possible ? ( my main parent window is starting to
> get quite cluttered)
> cheers
> mark
The problem is in not losing the "parent" data... Are these windows open
in the same browser window or are you opening the "child" in a new
window? If its the same just save their existing data, in a
db/viewstate/session/etc, and then when you reload it retrieve it.
If not you will have to force the "parent" to postback to get it to
refresh, and with the viewstate enabled you should get the pre-entered
data to remain
--
Curt Christianson
site: http://www.darkfalz.com
blog: http://blog.darkfalz.com
It is impossible to pass a variable value from the server to the client.
Server-side code executes on the server. Client-side code executes on the
client.
That said, it is certainly possible to WRITE client-side scripting code
(which will be executed on the client) dynamically from the server side.
That is what you need to do.
--
HTH,
Kevin Spencer
Microsoft MVP
..Net Developer
Ambiguity has a certain quality to it.
"Paul" <Paul@.discussions.microsoft.com> wrote in message
news:1BB64CF9-9547-4DF0-9556-E2F88CE79ECA@.microsoft.com...
> Just wondering if someone could provide an example of passing a variable
> from
> the code behind to javascript in vb. I want to have one control have
> focus
> with the page loading with one condition and have another control with
> focus
> after the page loads from a different condition. A gets set in the code
> aspx.vb file and the script might look something like,
> <script language="javascript">
> function DoHighlight(a)
> {
> if a = 1 {
> document.Form1.dr_lst_system.focus();
> }
> else
> {
> Form1.textbox1.focus();
> }
> }
> </script>
>
> thanks.
> --
> Paul G
> Software engineer.
Paul,
This is normally done with hidden input controls. Put a line
<input type=hidden runat=server id=inhA
in the .aspx file. If you switch from Html view to Design and back, you will
find in the code-behind a definition for inhA as an obyect of type
System.Web.UI.HtmlControls.HtmlInputHidden.
You can now set inhA.Value="1" on server side and check if (inhA.value ==
"1") on client side.
Eliyahu
"Paul" <Paul@.discussions.microsoft.com> wrote in message
news:1BB64CF9-9547-4DF0-9556-E2F88CE79ECA@.microsoft.com...
> Just wondering if someone could provide an example of passing a variable
from
> the code behind to javascript in vb. I want to have one control have
focus
> with the page loading with one condition and have another control with
focus
> after the page loads from a different condition. A gets set in the code
> aspx.vb file and the script might look something like,
> <script language="javascript">
> function DoHighlight(a)
> {
> if a = 1 {
> document.Form1.dr_lst_system.focus();
> }
> else
> {
> Form1.textbox1.focus();
> }
> }
> </script>
>
> thanks.
> --
> Paul G
> Software engineer.
Hi thanks for the response. Here is what I have but it does not seem to be
working. In the Java script I have
<form id="Form1" method="post" runat="server">
<input type="hidden" runat="server" id="inhA" NAME="inhA">
<script language="javascript" event="onload" for="window">
if (inhA.value == 0)
{Form1.dr_tx_names.focus();}
if (inhA.value == 1)
{Form1.dr_lst_system.focus();}
</script>and in the aspx.vb file I have
in page load event
If Not Page.IsPostBack Then 'only first time page loads
Me.inhA.Value = 0
and in a dropdown event select-causes the page to reload I have
Me.inhA.Value = 1
**************so I want one control two have focus if inhA = 0 and the other
to have focus if inhA = 1.
thanks for the information.
--
Paul G
Software engineer.
"Eliyahu Goldin" wrote:
> Paul,
> This is normally done with hidden input controls. Put a line
> <input type=hidden runat=server id=inhA>
> in the .aspx file. If you switch from Html view to Design and back, you will
> find in the code-behind a definition for inhA as an obyect of type
> System.Web.UI.HtmlControls.HtmlInputHidden.
> You can now set inhA.Value="1" on server side and check if (inhA.value ==
> "1") on client side.
> Eliyahu
> "Paul" <Paul@.discussions.microsoft.com> wrote in message
> news:1BB64CF9-9547-4DF0-9556-E2F88CE79ECA@.microsoft.com...
> > Just wondering if someone could provide an example of passing a variable
> from
> > the code behind to javascript in vb. I want to have one control have
> focus
> > with the page loading with one condition and have another control with
> focus
> > after the page loads from a different condition. A gets set in the code
> > aspx.vb file and the script might look something like,
> > <script language="javascript">
> > function DoHighlight(a)
> > {
> > if a = 1 {
> > document.Form1.dr_lst_system.focus();
> > }
> > else
> > {
> > Form1.textbox1.focus();
> > }
> > }
> > </script>
> > thanks.
> > --
> > Paul G
> > Software engineer.
>
On Wed, 29 Jun 2005 11:02:04 -0700, Paul wrote:
> Just wondering if someone could provide an example of passing a variable from
> the code behind to javascript in vb. I want to have one control have focus
> with the page loading with one condition and have another control with focus
> after the page loads from a different condition. A gets set in the code
> aspx.vb file and the script might look something like,
> <script language="javascript">
> function DoHighlight(a)
> {
> if a = 1 {
> document.Form1.dr_lst_system.focus();
> }
> else
> {
> Form1.textbox1.focus();
> }
> }
> </script>
>
> thanks.
Something like
if(<%=a%> = 1) will work (a is a server-side variable)
ok thanks for the information.
--
Paul G
Software engineer.
"intrader" wrote:
> On Wed, 29 Jun 2005 11:02:04 -0700, Paul wrote:
> > Just wondering if someone could provide an example of passing a variable from
> > the code behind to javascript in vb. I want to have one control have focus
> > with the page loading with one condition and have another control with focus
> > after the page loads from a different condition. A gets set in the code
> > aspx.vb file and the script might look something like,
> > <script language="javascript">
> > function DoHighlight(a)
> > {
> > if a = 1 {
> > document.Form1.dr_lst_system.focus();
> > }
> > else
> > {
> > Form1.textbox1.focus();
> > }
> > }
> > </script>
> > thanks.
> Something like
> if(<%=a%> = 1) will work (a is a server-side variable)
Public Sub DeliverFile(ByVal Page As System.Web.UI.Page, _
ByVal Data() As Byte, ByVal Type As String, _
ByVal Length As Integer, _
Optional ByVal DownloadFileName As String = "")
Suppose I have a sub that get the connection as below?
sub connect(sender As Object, e As EventArgs)You have to explain yourself. What values are you getting from database, what kind of data types are they. What do want to do with these values and your method?
dim cnn as string = "dsn=fyp; uid=root; pwd="
dim oconn as new odbcconnection(cnn)
dim sql as string
sql = "Select * From ReportSubmission Where StudentID = 'WeiSiong';"
dim cmd as odbccommand
cmd = new odbccommand(sql, oconn)
oconn.open
cmd.executereader
oconn.close
end sub
Function GetData(ByVal StudentID As String) As System.Data.DataSet
Dim connectionString As String = "Insert your connection string here"
Dim dbConnection As System.Data.IDbConnection = New System.Data.OleDb.OleDbConnection(connectionString)
Dim query As String = "SELECT * FROM ReportSubmission WHERE StudentID = @.StudentID"
Dim dbCommand As System.Data.IDbCommand = New System.Data.OleDb.OleDbCommand
dbCommand.CommandText = query
dbCommand.Connection = dbConnectionDim paramSID As System.Data.IDataParameter = New System.Data.OleDb.OleDbParameter
paramSID.ParameterName = "@.StudentID"
paramSID.Value = StudentID
paramSID.DbType = System.Data.DbType.String
dbCommand.Parameters.Add(paramSID)Dim dataAdapter As System.Data.IDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter
dataAdapter.SelectCommand = dbCommand
Dim ds As System.Data.DataSet = New System.Data.DataSet
dataAdapter.Fill(dataSet)
Return ds
End Function
Then, in order to access the dataset within your code you would call the function as follows
dim yourdata as string = GetData("WeiSiong").tables(0).rows(0).item("Name of column in the database that you want to read from")
In this ASCX page I determine which banner to show. It's been working great so far except now I have to add the capabilities of "zones" for my pages. This means I need to pass a variable to it.
Does anyone have an example of this ? I can't seem to find anything. I'm assuming this can be done.
Thanks alot
mike123Create a public field in the user control. Then on the page that you are including the usercontrol, add the property and the value to the HTML declaration to pass in the value to the usercontrol.
So if you create a public field like so in your usercontrol:
VB:
Public myProperty As String
C#:
public string myProperty;
Then in the HTML portion of the page that has the usercontrol on it, you would have:
<[TagPrefix]:[TagName] ID="myUserControl1" myProperty="This is what I am passing." runat="server" /
Now when the control is rendered, the public field myProperty that was defined in the UserControl has the value of 'This is what I am passing.', without the single quotes.
The TagPrefix and the TagName is defined in the Register tag at the top of the page. If you are using Visual Studio, it will automatically handle that for you when you drag the user control onto the page. All you need to to is put in the myProperty portion in the appropriate tag.
You may add a property in your usercontrol class.
Hi Jimmy,
Thanks for the response. Would you happen to have an example of how this is done? I haven't attempted this before and am unsure how to go about doing that
thanks again
In your ascx class, add this code before page_load event:
Assume your usercontrol called "usercontrol1"
In usercontrol1.ascx.vb
Dim strTest As String = ""
Public Property Test() As String
Get
Return strTest
End GetSet(ByVal Value As String)
strTest = Value
End Set
In aspx.vb
Protected WithEvents propertyTest As usercontrol1Private Shadows Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
usercontrol1.Test = "Test"
End Sub
If we have a web page in which any simple control is present for example a TextBox
<asp:TextBoxID="TextBox1"runat="server"Text=""></asp:TextBox>
Now in code file a public variable is defined like
publicstring txtValue ="Khan";
Now I want to assign thetxtValue inText filed of TextBox Just like
<asp:TextBoxID="TextBox1"runat="server"Text="<%=txtValue%>"></asp:TextBox>But this approach is not working.
Can anyone tell it?
Modify your markup to:
<asp:TextBox ID="TextBox1" runat="server" Text='<%# GetValue %>' />
Then you should make an at least protected function in your code behind to return the string:
protected string GetValue(){return txtValue;} I have tried it but it is getting error.
Please check it on you own side.
This syntax should work. I've used it a dozen times in my apps.
What is the error you're getting?
Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
publicpartialclass_Default : System.Web.UI.Page
{
privatestring txtValue ="Zeeshan";protectedstring GetValue(){
return txtValue;}
}
Default.aspx
<%@.PageLanguage="C#"AutoEventWireup="true"CodeFile="Default.aspx.cs"Inherits="_Default"Debug="true" %>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><htmlxmlns="http://www.w3.org/1999/xhtml">
<headrunat="server">
<title>Untitled Page</title></head>
<body>
<formid="form1"runat="server">
<div>
<asp:TextBoxID="TextBox1"runat="server"Text="<%# GetValue %>"></asp:TextBox></div>
</form></body>
</html>
And the error which I am getting is
Error 1 The best overloaded method match for 'System.Convert.ToString(object, System.IFormatProvider)' has some invalid arguments D:\New Project\dawateislamix.net\Default.aspx 12
Error 2 Argument '1': cannot convert from 'method group' to 'object' D:\New Project\dawateislamix.net\Default.aspx 12
Can you try with<asp:TextBoxID="TextBox1"runat="server"Text="<%# GetValue() %>"></asp:TextBox>
Modify your html as follows:
<asp:TextBoxID="TextBox1"runat="server"Text="<%# GetValue() %>"></asp:TextBox>
There is not any error now.
But still the value is not passed to the control.
Pls try to set the value in
Page_Load() event.
txtValue ="Zeeshan" ;
Default2.aspx
<%@.PageLanguage="C#"AutoEventWireup="true"CodeFile="Default2.aspx.cs"Inherits="Default2" %>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><htmlxmlns="http://www.w3.org/1999/xhtml">
<headrunat="server">
<title>Untitled Page</title></head>
<body>
<formid="form1"runat="server">
<div>
<asp:textboxID="Textbox1"runat="server"Text="<%# GetValue() %>"></asp:textbox>
</div>
</form></body>
</html>
Default2.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
publicpartialclassDefault2 : System.Web.UI.Page
{
privatestring txtValue;protectedstring GetValue(){
return txtValue;}
protectedvoid Page_Load(object sender,EventArgs e)
{
txtValue ="Zeeshan";}
}
Please check it.
It still does not show the text.
sorry guys its as simple as this
in your code behind you have this
publicpartialclasscodedisplay : System.Web.UI.Page
{
privatestring txtValue ="Zeeshan";protectedvoid Page_Load(object sender,EventArgs e){
TextBox1.Text = txtValue;
}
}
and in your aspx you have this
<asp:TextBoxID="TextBox1"runat="server"/>
with all form and html elements.
Good luck
You can do it in your code behind instead of in your markup:
protectedvoid Page_Load(object sender,EventArgs e)
{
if (!IsPostBack)TextBox1.Text = GetValueStr();
}
privatestring txtValue ="test";protectedstring GetValueStr(){
return txtValue;
}
But If I want to do it on Mark up then.
Well if you want to do it on mark up then, put it straight in
text="Zeeshan"
text is a property and hence
Don't use code blocks in ASPNET. Avoid if you can avoid it because they are written for backward compatability; instead write an event handler or startup routine in the codebehind which populates the property on the control as necessary.
For example, you could do it in Page_Load - but be sure to surround it with if (! PostBack) so that the value doesn't get overwritten when posting back.
In late binding controls i.e. say a textbox in a gridview etc, you can databind but that again uses reflection etc and hence is slow.
Hi,
If you have to do it in the markup use single quotes instead Text='<%=MyPublicVariable %>'
HTH
I am new to asp.net. I am wondering how I can open a new window from a button or link. I need to pass a value so both windows are linked. I will appreciate any help, code vb.net
The main page has a label is that stores the ID number, I need to pass this value so I can display in the new window information about this id. Please help. Thanks.
use the Querystring to pass variables to other pages
ie.
Response.Redirect("www.myplace.com/mynewpage.aspx?someValue=399393","_blank");
check this out
http://www.codeproject.com/aspnet/QueryString.asp
hth,
mcm
how about javascript?
<asp:button onclientClick='window.open(.....);' Text='Open New Window' runat=server />
javascript DOES open a new window.
read about it. -->http://www.javascript-coder.com/window-popup/javascript-window-open.phtml
mcm
You can test the below code in page_load event which will open a new window using javascript
Page.ClientScript.RegisterStartupScript(me.GetType(),"open","window.open('WebForm2.aspx?id=123','','height=400,width=300');",true)
Where WebForm2.aspx is the name of the window you would like to open. Now in webform2 you can get the value of id using
Dim id as String = Request.QueryString("id")
HC
dim yourPassInVar as string
Page.ClientScript.RegisterStartupScript(me.GetType(),"open","window.open('WebForm2.aspx?id='" + yourPassInVar + ",'','height=400,width=300');",true)
How about this?
In the current window page_load event use the below code if you want the window to open direclty when the page is being loaded
Page.ClientScript.RegisterStartupScript(me.GetType(),"open","window.open('WebForm2.aspx?id=' + '"+Label1.Text+"','','height=400,width=300');",true)
If you want for example to open it on button click event use the below code
Button1.Attributes.Add("onclick","window.open('WebForm2.aspx?id=' + '"+Label1.Text+"','','height=400,width=300');")
Where Button1 is the button you want to open the window when being clicked
HC
Great. Thank you for all the help!
;-)
I need to pass a variable from a master page to a details page when a user clicks on a link in a DataList. Right now I have a link button, but I don't know how to put the variable into the link at runtime. Hopefully this is just a matter of syntax? How can I make this work?
<asp:DataListID="DataList1"runat="server"DataSourceID="SqlDataSource1">
<ItemTemplate><asp:LinkButtonID="NameLinkButton"runat="server"Text='<%# Eval("Name") %>'PostBackUrl="details.aspx?sponsorID={0}"Font-Bold="true"></asp:LinkButton>...
</ItemTemplate></asp:DataList>try this tutorial
Tuorial #4 Understanding Web Application State in the begnner section ofhttp://www.asp.net/learn/videos/default.aspx?tabid=63#howdoi
helped me out alot on understanding how to pass from one page to the other.
Ragscoon =<^_^>=
could you define a string variable and set it equal to the text property of your linkbutton (I'm assuming the text property will be the data item you want to pass to your other page). Then add that string variable to the querystring that will be passed to your other page.
I had to do something like you are doing, except it was a linkbutton in a gridview. It came out like this:
sLocationCode = grdLocationCode.DataKeys(iIndex).Item("ALCODE").ToString()
sCountryCode = grdLocationCode.DataKeys(iIndex).Item("ALCCODE").ToString()
Response.Redirect("LocationCodeDetail.aspx?" & sCountryCode & ";" & sLocationCode)
I believe this addresses your question.
Thanks for the responses. What I am asking is: what is the syntax for concatenating the destination URL with the variable that I want to pass (the sponsorID)?
If I use:
<
asp:HyperLinkID="NameLabel"runat="server"Text='<%# Eval("Sponsor") %>'NavigateUrl='myDetails.aspx?sponsorID=<%# Eval("SponsorID") %>'Font-Bold="true"></asp:HyperLink>I get:
http://localhost:2097/myFolder/myDetails.aspx?sponsorID=<%#%20Eval("SponsorID")%20%>
It does not parse the SponsorID variable.
To clarify the last line in my previous message:
I get:
http://localhost:2097/myFolder/myDetails.aspx?sponsorID=<%#%20Eval("SponsorID")%20%>It does not parse the SponsorID variable.
For example I want to have a person enter their name and hit submit.
After hiting submit, the name is entered into a database and a confirmation page with the person's name is dislayed.
How do I do this?The simplest way, is with a querystring - -
response.redirect ("newpage.aspx?name=" & txtName.text)
Then, in the new page, just capture the querystring:
Dim sName as string
sName=request.querystring
From there, you can use the variable 'sName' anywhere you'd like on the page, as long as it's dimmed globally to the page (outside any events)
If u want the variable to be used only in one page Querystring is the best choice.If u want to hold the value for many pages, use Sessions.
Thanks,
Kumar.
Thanks. It's perfect.
Okay...I'm dumb..where do I declare the variable Dim strName?
I'm using Webmatrix. Do I delare them in the at the to of the html code or from the code section?
eg.<%declare here%>
in the code section...
Dim strName as string = Request.QueryString("Vari1")
An example would be _menu.ascx, which is a user control and is used in every aspx page such as default.aspx. It's properly set using the @dotnet.itags.org.Register tag in the html pages.
CODEBEHIND FOR DEFAULT.ASPX.CS
--------------
public class _default : System.Web.UI.Page
{
````public string strVariable; // want to use this variable in usercontrol
````private void Page_Load(object sender, System.EventArgs e)
````{
````````strVariable = "Hello World";
````}
}
CODEBEHIND FOR _MENU.ASCX.CS
--------------
public abstract class __menu : System.Web.UI.UserControl
{
````protected System.Web.UI.WebControls.Repeater repMenu;
````private void Page_Load(object sender, System.EventArgs e)
````{
````````DataAccess hdlData = new DataAccess();
````````repMenu.DataSource = hdlData.getMenu(??????); // stuck here!!
````````repMenu.DataBind();
````}
}use a Session["name"] object
psi
Is there another way of passing it, instead of using a Session["name"] variable? My variable is actually in the base class (business class), which all the aspx pages inherit from
CODEBEHIND FOR BUSINESS CLASS PAGEHELPER.CS
--------------------
public class PageHelper : System.Web.UI.Page
{
````public string strVariable; // want to use this variable in usercontrol
````public PageHelper()
````{
````````strVariable = "Hello World";
````}
}
CODEBEHIND FOR DEFAULT.ASPX.CS
--------------
public class _default : PageHelper
{
````private void Page_Load(object sender, System.EventArgs e)
````{
````````// this page inherits the PageHelper.cs class, which
````````// sets all the necessary variables.
````}
}
CODEBEHIND FOR _MENU.ASCX.CS
--------------
public abstract class __menu : System.Web.UI.UserControl
{
````protected System.Web.UI.WebControls.Repeater repMenu;
````private void Page_Load(object sender, System.EventArgs e)
````{
````````DataAccess hdlData = new DataAccess();
````````// this needs to get variable in PageHelper.cs class
````````repMenu.DataSource = hdlData.getMenu(??????); // stuck here!!
````````repMenu.DataBind();
````}
}
yes, you should be able to do this, and assess it from the user control:
PageHelper class is public
public string strVariable;
add this property ...
public string StrVariable
{
get{return var;}
set{var = value;}
}
you would then have to instatiate an instance of PageHelper and call the Property:
PageHelper ph = new PageHelper();
//get variable ...
ph.StrVariable
hope that helped
psi
Thank you for all the help psinyc!!!
It works now =)
good
How do I go about passing the value strUserId to the parameter value of ObjectDataSource1?
// get userid for logged in client
if (User.Identity.IsAuthenticated)
{
strUserId = Membership.GetUser().ProviderUserKey.ToString();
}
In the Configure Data Source wizard it is asking for a Parameter Source in the drop down. And the variable strUserId (in the code-behind for the page) is not an option.
How do I make it one?
hi
you need to set the parameter value in Selecting event of the object datasource :
protected void ObjectDataSource1_Selecting(object sender, ObjectDataSourceSelectingEventArgs e) {this.ObjectDataSource1.SelectParameters[0].DefaultValue = Membership.GetUser().ProviderUserKey(); }
Try setting your Parameter in the ObjectDataSource.Selecting event like so:
protected void ObjectDataSource1_Selecting(object sender, ObjectDataSourceSelectingEventArgs e){e.InputParameters["UserID"] = Membership.GetUser().ProviderUserKey;}Thank you Anas,
I double clicked the ObjectDataSource1 in design view and was able to get it started.
I will review your code.
Thanks again.
Update: I actually got the 2nd answer in this thread to work.