Web Forms :: Name 'ClientScript' Is Not Declared?

Mar 04, 2010 08:01 AM

I have this line of code on my aspx page that works fine.


i now want to put the same code in a user control, this is when i get the error.

how can i get 'ClientScript' work on usercontroll


Web Forms :: ClientScript.GetPostBackEventReference ()?

Apr 29, 2010 06:48 AM

I have created a custom control similar to LinkButton. In that class I use the following code :


Now, my question is why does it add a call to setTimeout() with my custom control and not with the actual LinkButton?

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Web Forms :: ClientScript.RegisterStartupScript Within A Class?

Mar 12, 2010 04:19 PM

I want to use Javascript Alert to show errors and warnings to my users so I wrote a method for this purpose which is part of a class. The code is as follows:

public static void DisplayMessage(String strMessage)
Page currentPage = (Page)HttpContext.Current.CurrentHandler;
"AlertWindow", strMessage, true);

I have something like this in visual basic and it works but nothing is displayed in my C# project.
What am I doing wrong?

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Web Forms :: ClientScript.RegisterStartupScript, Getting Null?

Jan 26, 2011 03:09 PM

I have done the following in codebehind of a master page trying to use codebehind to dynamically declare a variable (TextBox1) that exists on my content page. I can't declare it in the html because it is on the content page and unless I am viewing that particular content page, I get an error. So I am trying to create it here when needed.



I don't get an error, but my value for TxtBox1 in the end is "null". I have selected onPreRender to make sure that it is the last thing to take place.

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Web Forms :: ClientScript.RegisterClientScriptBlock Cannot Work?

Oct 20, 2009 10:56 PM

This won't work but if I do this in the page load it will work


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Web Forms :: ClientScript Not Working In Page?

May 20, 2010 06:58 AM

i can not understand why in some page following clientscript is not working?


actually i use above script for show message and go to another page,but some page it is not working.why?

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Web Forms :: Cannot Open Page.ClientScript.RegisterClientScriptBlock()?

Nov 23, 2009 02:40 AM

I have a "button" in my homepage.i'm storing a session variable in button's click event and when i click on the button it will take me to another page.
for this i have used the following code:


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Web Forms :: Use ClientScript.RegisterClientScriptBlock In User Control?

Aug 29, 2010 04:20 AM

I added 'Imports System.Web.UI' to the code behind for a user control so that I could dynamically create JavaScript usingClientScript.RegisterClientScriptBlock. However when I declared the variable, I got the following error message'System.Web.UI.ClientScriptManager.Friend Sub New(owner As System.Web.UI.Page)' is not accessible in this context because it is 'Friend'.

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Web Forms :: Page.ClientScript.RegisterClientScriptBlock Does Not Work?

Sep 08, 2010 05:29 PM

I am new to .Net and webpart. What I try to do is to create a griedview webpart with a functionality of export to excel. The gridview also can drildown another gridview. The drilldown work as expected. When click export to excel link button it works ok, too. The problem is when comeing back to the gridview to click any row, it stops to drilldown. If I want to use export to excel link it stop working also. Only refresh page can make it work again. I did research and found a solution, that is, to implement a javascript to solve the problem. I follow references from microsoft site as shown below.

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Web Forms :: Best Place To Put A Register.ClientScript When Dealing With Registering An Externall

Jan 17, 2011 08:57 PM

Looking at the blogs on using the Register.ClientScript for a javascript file, it wasn't obvious where the best place is to put it. Do you put it in the HTML file , do you put it in codebehind in the Page_Load subroutine

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Web Forms :: Page.ClientScript.RegisterClientScriptBlock Is Not Working OnLoad Event?

Jun 18, 2010 04:05 PM

I put following on Page_onload event, I am not sure why it is not working. However when I use with dropdown, it is working fine.


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Web Forms :: ClientScript.RegisterClientScriptBlock Vbscript Not Running On Windows 7 Boxes?

Mar 25, 2011 06:24 PM

We have an web application which has been working fine on XP but which fails on Windows 7.I have a page where I'm executing several procedures on server-side and then must execute a vbscript function on client-side which I'm registering from my server code.The problem is after postback completed vbScript function is not executed at all.... even a simple "Alert" statement is not executed but only using Windows 7.... same code works fine on windows XP...

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Forms Data Controls :: GridView Postback With ClientScript.GetPostBackClientHyperlink?

Nov 02, 2010 04:30 PM

I'm using ClientScript.GetPostBackClientHyperlink in the OnRowCreated event of the GridView to postback when you select a row. I put a column of checkboxes in now and when 1 or many checkboxes in the row are selected I don't want the page to postback. I'm having trouble with this.This is my code:


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Forms Data Controls :: Gridview Row Select$ And Clientscript.GetPostBackEventReference Method

Jan 10, 2011 08:15 AM

i am facing a strange problem putting it in short .... i have two grids... i have grid1 and grid2... now based on row click of firstgrid..i wd take d id from cell(0) of first grid and then fill up the 2nd grid based on tht info selected (id) from the 1st
grid .... here is the code snippet :


and here is the codebehind :


now the problem is that : when i click the row for first time it shows into the 2nd grid all fine ...

but whenever i reclick it ..it shows the page with error in javascript that object refrence needed... and page ends with error. why i cant reclick my grid to fill up the data and why is it ending up in javascript error.....

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How To Use ClientScript.RegisterStartupScript

Apr 08, 2009 05:17 PM

Is it possible to use ClientScript.RegisterStartupScript and have it execute immediately after a postback?

My situation is this: I have a button that, when clicked, creates an object. One of the methods of this object returns some values that I am trying to use ClientScript.RegisterStartupScript to pass to a JavaScript function. I can create the JS fine and when I view the source the JS is at the bottom of the page like it should be. However, I need this JS to fire when the page loads.

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Returning Value From ClientScript.RegisterStartupScript?

Aug 24, 2009 06:43 PM

Does anyone know how to Return a value from ClientScript.RegisterStartupScript in C#

for eg. we have a popup with the following code below.

ClientScript.RegisterStartupScript(GetType(), "Message", "<SCRIPT LANGUAGE='javascript'>confirm('Are you sure?');</script>")

and would like when the user hit ok or cancel to return a value from the ok or cancel button for further use in c#.

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How To Use ClientScript.RegisterClientScriptBlock With Inline Code

Mar 16 at 13:07

I have aspx page where there is no code behind. Server side Code written inside tag with runat server attribute.

ClientScript.RegisterClientScriptBlock(this.GetType(), "Email", "GetEmail();");
in page_load() event, it just print GetEmail(); when page load
html xmlns="http://www.w3.org/1999/xhtml">
<script type="text/javascript" language="javascript">
function GetEmail()

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C# - Receiving System.FormatException After Using ClientScript?

Feb 2 at 13:12

I'm trying to code an onclick behaviour for a GridView by using the following codebehind-code:

protected void gridProcesses_RowDataBound(object sender, GridViewRowEventArgs e)
if (e.Row.RowType == DataControlRowType.DataRow)
e.Row.Attributes["onmouseover"] = "this.style.cursor='hand';";
e.Row.Attributes["onmouseout"] = "this.style.textDecoration='none';";
e.Row.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink(this.gridProcesses, "SelectProcess$" + e.Row.Cells[0].Text);


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MVC :: Page.ClientScript.RegisterClientScriptInclude Not Working?

Jan 03, 2008 02:47 PM

The ClientScriptManager seems to require a form with runat=server in order to successfully render scripts. Is everyone just doing this manually, or if dynamic support is required (to avoid registering scripts multiple times), using Placeholders?

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VS 2008 Run Java In Code Behind Using ClientScript.RegisterStartupScript?

Jan 1st, 2010, 04:20 PM

I know how to register a client script that is on my web page, but I would like to know how to register my script when the script is in another file. Does anyone know how to register a file containing java script file. This is my code for calling the function when it's in the page.

HTML Code:


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AJAX :: AnimationExtender - How To Show Up With ClientScript.RegisterStartupScript

Oct 22, 2009 10:00 PM

I created a simple version of what I am trying to do. I have the animation ib a usercontrol that is place in an aspx page. If i click on the button that triggers the animation everything works fine. but what I want is to trigger the animation from ClientScript and I ahve not been able to do that. here is what I have

user control


aspx page




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AJAX :: Clientscript.registerstartupscript Not Working With ScriptManager?

Dec 29, 2010 10:33 AM

I m using web user control for java script calendar when i use ScriptManager on aspx page then value of calendar input type is not showing without ScriptManager is showing..

I m using this code on Test.aspx page -

<uc1:CalendarUserControl ID="CalendarUserControl1" runat="server" OnLoad="CalendarUserControl1_Load"/>
And I m using code on CalendarUserControl.ascx-
<input type="text" name="showdia" id="showdia" size="9"/><input onclick="return showCalendar('showdia', 'mm/dd/yyyy');" type="image" src="images/cal.gif" name="reset" style="cursor:pointer"/>
<input id="Button1" type="button" onclick="loadimages(showdia.value)" style="background-image: url(images/language/english/view.gif); width: 57px; height: 24px; background-color: transparent;"/>
And code on Test.aspx.cs file -
protected void Page_Load(object sender, EventArgs e)
string myscript1 = "document.getElementById('showdia').value='" + System.DateTime.Now.ToString("d") + "'";
ClientScript.RegisterStartupScript(typeof(Test.aspx), "myscript1", myscript1, true);
when I use ScriptManager then value of <input type="text" name="showdia" id="showdia" /> is not showing

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AJAX :: Collision Between Alwaysvisiblecontrol And ClientScript.RegisterStartupScript?

Jan 12, 2011 12:40 PM

I use AlwaysVisibleControl in a page and show a result of data access in popup with ClientScript(or

ScriptManager). RegisterStartupScript. ScriptManager.RegisterStartupScript(this, this.GetType(), "error",
"<script language=javascript> alert('* Saved well.');</script>", true); When popup window appears after postback, alwaysvisiblecontrol is on wrong location. (Initial html coded place not the alwaysvisible targeted place) After I click OK button of poput, alwaysvisiblecontrol locates at target place. I want this popup locates target place before popup window popups up.

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Sometimes The Page Does Not Load Fully After An Clientscript Alert()

Mar 31, 2010 09:12 PM

The problem i have noticed is that sometimes after a clientscript alert() the page will not post back properly and kind of "hang". The page will only show the background and will not do anything until the browser is refreshed.


I call clientscripts withing button click events, after the code has succeded or failed(try catch). So i will write to database/upload file/send email and then depending on the restult run a clientscript alert to notify the user. However sometimes after you "Ok" the alert the page does not finish posting back and "hangs" half loaded.

how to fix it? would adding return false; after the alert in the client script at all? (i have seen this in a online code example but they did not explain why they put it there).

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AJAX :: UpdatePanel Suppressing ClientScript Action?

Aug 12, 2010 02:05 PM

if anyone has encountered this before and knows a way to work around it? The app is ASP.NET 3.5. Some of the markup on the page in question is wrapped in an UpdatePanel, including a checkbox. The checkbox is set to AutoPostBack. When the CheckedChanged event fires, information is gathered from screen elements and dropped into a stringbuilder that becomes part of a window.open javascript that is called from this ClientScript block:


I put in a breakpoint and followed the execution. No errors but the javascript doesn't open the new window. Comment out the UpdatePanel and the javascript executes and the window pops up like it should. Has anyone encountered this before? Is there a way to make the UpdatePanel play nice and let the javascript execute?

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Web Forms :: Name 'xxxxx' Is Not Declared?

Dec 08, 2009 02:17 PM

I have a label named Label1

Source: <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
Code behind is: Label1.Text = "Thank you for your interest! Your information request is registered on " & Now() & " and will be answered as soon as possible."

When I run the code, I got a error message like this: "Name Label1 is not declared". But the Label1 is filled like in the code behind.What is the problem?

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Web Forms :: Textbox1 Not Declared

Aug 19, 2009 01:30 PM

sometimes if i edit my sourcecode i recieve the error that my textbox1 is not declared in my codebehind file. I found only one issue but if i try to solve it i recieve the same error. My issue is that i have to contraols with id=textbox1 so i edit the last one in my apsx site to textbox81 and of course i edit also the codebehind file, but i still have the same error in my VWD2008 I also tried to delete the .net cache files. That is my aspx site(look for textbox1 in the last lines):


and that is my codebehind files:


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Web Forms :: UserControl Not Declared

Sep 20, 2009 04:42 AM

I seem to be having a bit of a problem with a User Control not being seen or "declared". Here is the declaration for the control.


But I keep getting an error saying "name raftup1 is not declared". Can anyone help me understand what I might be doing wrong here?

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Web Forms :: Name Txtcscs Not Declared

Jul 14, 2010 11:01 AM

I get the above error while compiling and the name is in my .aspx file while i try to assign it in my .vb file like this
IN .aspx file:

<td class="txtarialsml">SEC Fee</td>
<td> <asp:TextBox runat="server" ID="txtsec" Width="150px" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" ReadOnly="true" CssClass="txtverdlink" Height="18px"></asp:TextBox></td>
<td class="txtarialsml">CSCS Fee</td>
<td> <asp:TextBox runat="server" ID="txtcscs" Width="150px" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" ReadOnly="true" CssClass="txtverdlink" Height="18px"></asp:TextBox></td>
<td class="txtarialsml">NSE Fee</td>
<td> <asp:TextBox runat="server" ID="txtnse" Width="150px" BorderColor="Silver" BorderStyle="Solid" BorderWidth="1px" ReadOnly="true" CssClass="txtverdlink" Height="18px"></asp:TextBox></td>
In .VB file
Protected Sub drpstock_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles drpstock.SelectedIndexChanged
txtsec.Text = ""
txtnse.Text() = ""
txtcscs.Text() = ""
Catch ex As Exception
Session("errorcode") = "blabla"
Session("errordesc") = "This exception occurred while trying to fetch data."
End Try
End Sub
Public Sub dg_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs)
Dim row As DataGridItem = e.Item
lblData.Text = "in subprocedure"
If row.ItemType = ListItemType.Item OrElse row.ItemType = ListItemType.AlternatingItem Then
Dim day As DateTime = Convert.ToDateTime(DirectCast(row.DataItem, DataRowView)("day").ToString())
Dim tempMonth As Integer = day.Month
Dim lblMonth As Label = DirectCast(row.Cells(0).FindControl("lblMonth"), Label)
If row.ItemIndex = 0 Then
UpdateLabel(lblMonth, day)
End If
If currMonth <> tempMonth Then
'add blank row
currMonth = tempMonth
j += 1
AddRow(row.ItemIndex + j)
UpdateLabel(lblMonth, day)
End If
End If
End Sub

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AJAX :: Not Working ClientScript.RegisterStartupScript With Update Panel?

Mar 06, 2008 05:26 AM

I am having a button in Update panel. I want to call "ClientScript.RegisterStartupScript" method onClick event of button. when I debug my code. Button onClick Event is fired and also the code is executed.


"string CloseWindow;
CloseWindow = "alert('Hello World')";
ClientScript.RegisterStartupScript(this.GetType(), "CloseWindow", CloseWindow, true);"

This code is working properly when I remove Updatepanel . but with Updatepanel its not working and also not giving any error msg. Pleas provide me solution for above problem

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Web Forms :: 'ConfigurationManager.AppSettings' Not Declared?

Sep 20, 2007 12:00 PM

I am trying to write some code that loads a text box with data from a database every time a page loads. I want to reference the connection as held in the web.config but am struggling to read it. From what I can see I need to use the Configurationmanager.appsettings to read in the connection string but am getting an error:ConfigurationManager.AppSettings("Personal") ConfigurationManager.AppSettings' is not declared or the module containing it is not loaded in the debugging session.

The code is: -


I came across an article that said you need to add a reference to the system.config dll under the .NET tab so did that but it has made no difference. Can anyone tell me how to reference the web.config connection strings in VB?

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Web Forms :: Datatable Not Declared - Getting Error

Dec 07, 2009 01:56 AM

I have this code in my script section

Dim dt As DataTable = Nothing

Get error datatable is not declared. What should I do. Is it I need to import something?

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Forms Data Controls :: Name Not Declared Yet?

Mar 11, 2011 10:39 AM

At a bit of a loss here. As the subject says, I have a repeater control that uses the variable xmlN which is declared in my Sub Page_Load. Posted code below.


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Web Forms :: BC30451: Name 'txtUser' Is Not Declared

Apr 27, 2010 04:55 PM

Server Error in '/' Application.

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30451: Name 'txtUser' is not declared.

Source Error:


Source File: E:JKEClientsHI-VISwebsiteglobal.master Line: 7

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Web Forms :: BC30451: Name 'ModalPopupExtender1' Is Not Declared

Dec 21, 2010 08:25 PM

I have a Master file and an .aspx page which makes use of the Master file. I am currently working through implementing a new feature (see [URL] if interested), but essentially the problem has arisen after added Javascript code to my Main.Master page. Whenever there is a <%= %> in the Javascript code pointing to an object in the .aspx page, an new compilation error occurs:

Compiler Error Message: BC30451: Name 'ModalPopupExtender1' is not declared.

For example, the following is contained in Main.Master:

var modal = $find('<%=ModalPopupExtender1.ClientID%>');
document.getElementById("<%=Image1.ClientID%>").src = imageList[imageIndex];

However, ModalPopupExtender1 and Image1 are contained in Search.aspx.

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Web Forms :: Error - 180 Name 'DataBinder' Is Not Declared?

Aug 19, 2010 05:53 PM

I am using Repeater to display the data.

to get the data from database i am using

<%# DataBinder.Eval(Container.DataItem, "datafield") %>

when i build it... it build successfully but in error list i found

Name 'DataBinder' is not declared.

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Web Forms :: Type And Name Not Declared Errors In App_Code

Nov 04, 2010 09:23 PM

I have an application which I have worked on several times, but this week I've been trying to get the application to work on a new laptop and failed. First there were was some dependency issues with some controls like the AJAX Control Toolkit and AJAX Extensions, but now that I have everything I'm still getting errors. The errors that I'm getting are only in the App_Code classes. For Example I have the following references in the web.config

<add namespace="System"/>
<add namespace="System.Collections"/>
<add namespace="System.Collections.Specialized"/>
<add namespace="System.Configuration"/>
<add namespace="System.Text"/>
<add namespace="System.Text.RegularExpressions"/>
<add namespace="System.Web"/>............

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Web Forms :: VS2005 Error BC30451: Name '' Is Not Declared

Jun 29, 2006 11:34 AM

When I go to build the page no errors occur, but if I start debugging I get a BC30451: Name is not declared build error, for a label and radio button which are both declared.

The error doesn't show in the error list, and if I press 'Yes' on the 'Would you like to continue and run the last successful build' dialog, I am able to run the most up to date version of the page & debug properly.

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Web Forms :: Tried Two Cases (variable Declared In .cs File)

Dec 22, 2010 01:41 PM

I tried two cases: (here a is a variable declared in .cs file)

1. <form id="form1" runat="server"> //generates 10 as output
<%=a %>

2. <form id="form1" runat="server"> //generates nothing
<%#a %>
C# file
public partial class Default : System.Web.UI.Page
protected int a;
protected void Page_Load(object sender, EventArgs e)
a = 10;

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AJAX :: Page.clientScript Is Not Working In AjaxControl(ie Inside Update Panel)?

Feb 25, 2010 08:54 AM

i want to call javascript function from codebehind using page.clientscript it is working fine if i am not using AJax's Updatepanel,but if i want to use Update panel, but the same time i want to call javascript function from codebehind

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