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Problem with the textbox

Posted on 2014-07-23
3
Medium Priority
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Last Modified: 2014-07-24
Hi,
with these codes
<%@ Page Title="Test" Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="App7._Default" ValidateRequest="false" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" TargetControlID="tb_reg_date" %>
...
                <asp:TextBox ID="tb_reg_date"
                    width="170px"
                    Font-Names="Times New Roman" 
                    Font-Size="11pt" 
                    Font-Bold="true"
                    ForeColor="DarkBlue"
                    runat="server" />
                <cc1:CalendarExtender ID="CalendarExtender1" runat="server" 
                    TargetControlID="DateTextBox" Format="MMMM d, yyyy">
                </cc1:CalendarExtender>
                ...

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I get this

Server Error in '/App7' Application.

Parser Error 
  Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. 

 Parser Error Message: The 'targetcontrolid' attribute is not supported by the 'register' directive.

Source Error: 



Line 1:  <%@ Page Title="Test" Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="App7._Default" ValidateRequest="false" %>
Line 2:  <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" TargetControlID="tb_reg_date" %>
Line 3:  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Line 4:  <html xmlns="http://www.w3.org/1999/xhtml">
  

 Source File:  /App7/Default.aspx    Line:  2 


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18446  

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why?
0
Comment
Question by:HuaMinChen
3 Comments
 
LVL 36

Expert Comment

by:Miguel Oz
ID: 40216101
The error means that TargetControlID is not a valid construct for the "Register" directive.

Just remove the following "TargetControlID="tb_reg_date"" from line 2  and if your Ajax library is installed correctly, the page error will be gone.
0
 
LVL 11

Author Comment

by:HuaMinChen
ID: 40216112
Sorry, with these
<%@ Page Title="??????" Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="App7._Default" ValidateRequest="false" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
...
                <asp:TextBox ID="tb_reg_date"
                    width="170px"
                    Font-Names="Times New Roman" 
                    Font-Size="11pt" 
                    Font-Bold="true"
                    ForeColor="DarkBlue"
                    runat="server" />
                <cc1:CalendarExtender ID="CalendarExtender1" runat="server" 
                    TargetControlID="DateTextBox" Format="MMMM d, yyyy">
                </cc1:CalendarExtender>
                ...

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I still get this

Server Error in '/App7' Application.

The TargetControlID of 'CalendarExtender1' is not valid. A control with ID 'DateTextBox' could not be found. 
  Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

 Exception Details: System.InvalidOperationException: The TargetControlID of 'CalendarExtender1' is not valid. A control with ID 'DateTextBox' could not be found.

Source Error: 


 An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace: 



[InvalidOperationException: The TargetControlID of 'CalendarExtender1' is not valid. A control with ID 'DateTextBox' could not be found.]
   System.Web.UI.ExtenderControl.RegisterWithScriptManager() +512
   AjaxControlToolkit.ExtenderControlBase.OnPreRender(EventArgs e) +24
   System.Web.UI.Control.PreRenderRecursiveInternal() +113
   System.Web.UI.Control.PreRenderRecursiveInternal() +222
   System.Web.UI.Control.PreRenderRecursiveInternal() +222
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4297

  


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18446  

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0
 
LVL 11

Accepted Solution

by:
Kelvin McDaniel earned 585 total points
ID: 40216757
Change this...

<cc1:CalendarExtender ID="CalendarExtender1" runat="server" 
                    TargetControlID="DateTextBox" Format="MMMM d, yyyy">
                </cc1:CalendarExtender>

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... to this...

<cc1:CalendarExtender ID="CalendarExtender1" runat="server" 
                    TargetControlID="tb_reg_date" Format="MMMM d, yyyy">
                </cc1:CalendarExtender>

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0

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