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Venkatesh MookkanHere "Page" throws NullReferenceException. I have already tried it and removed it.
Have you tried it in a late event like OnPrerender? If you use this before the Control gets added to the a page, the Page property is null.
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I am not saying about the Controls..
I am talking about the "Page".
You can try my code:
<DefaultProperty("Text"), ToolboxData("<{0}:EglLabel runat=server></{0}:EglLabel>"), _<br />
Description("Eagle Label")> _<br />
Public Class EglLabel<br />
Inherits Label<br />
Implements IPostBackEventHandler<br />
<br />
<br />
Public Event Click As EventHandler<br />
<br />
<br />
Protected Overridable Sub OnClick(ByVal e As EventArgs)<br />
RaiseEvent Click(Me, e)<br />
End Sub<br />
<br />
Public Sub RaisePostBackEvent(ByVal eventArgument As String) Implements System.Web.UI.IPostBackEventHandler.RaisePostBackEvent<br />
OnClick(EventArgs.Empty)<br />
End Sub<br />
<br />
Public Sub New()<br />
Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(Me, ClientID))<br />
End Sub<br />
End Class
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Venkatesh MookkanPublic Sub New()
Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(Me, ClientID))
End Sub
End Class
That's the problem rigt here. Like I said, you try to attach the method too early. In the constructor the control has not been added to a page yet, thus the Page property is Nothing at this time. Later on in the control life cycle the controls will get added to a page, and the Page property will now contain a reference to this page.
So to make it work, insteas of Public Sub New() write Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
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Its working... Thanks Man...
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HI Venkatesh
How are you adding that Label to youe Aspx page ?
As its not a custom control ...
Where are you declaring this label in Aspx.cs file ?
Thanks and Regards
Sandeep
If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "
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Sandeep Akhare wrote: How are you adding that Label to youe Aspx page ?
Hey Sandeep, I am not adding... I am inheriting the Label as MyLabel which has all the features of Label. In addition to that I am adding Click event to it.
Thats it...
It works fine...
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Venkatesh MookkanI am not adding...
You are not adding this MyLabel to any aspx page ?
Actually after reading your post i found it intresting so i also started but
i am confused Can you post the whole code ?
Thanks and Regards
Sandeep
If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "
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Hey Sandeep,
I can't post the source since it is my Company's property. Its all about INHERITANCE.
Right example is, each CodeBehind of ASP.NET inherits from Page Class.
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i have datagrid with paging (page no)
In that datagrid one column contains check box. can we make the checked state remains checked while traversing different pages in datagrid. how can i get the values of particular column which are in checked
give the answer for this in asp.net 1.1
m.ramesh
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Use FindControl method and find the CheckBox using its name.
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getting values of particular page is not a problem using findcontrol
first i have to maintain the state checked for all pages (getting postback)
afterwards i have to get checked values(state=true) for all the pages
Thanks for your answer
help me in this regard
m.ramesh
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M.Ramesh wrote: first i have to maintain the state checked for all pages (getting postback)
M.Ramesh wrote: afterwards i have to get checked values(state=true) for all the pages
Do you think this explains what you want to say?
Can you post the code if possible?
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I have some datas in a dataset. How can i bind the datas in datagrid using ajax.. anybody please help me..
m.ramesh
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Venkatesh MookkanNope... You can't.
Well - you SORT OF can - create a DataGrid object on the server side, bind there, and then call rendercontrol on it, and render to the response stream - then at the client side, check the responseText, and set the innerHtml of a div (or something similar) to that - et voila - a grid through ajax 
"Knock me down, I'll get straight back up again, I'll come back stronger than a powered up pacman"
(Lilly Allen / Kaiser Chiefs)
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I haven't tried that before...
But sounds like a good idea...
Let me try..
Thanks Richard.
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No worries - snippet avail if needed
"Knock me down, I'll get straight back up again, I'll come back stronger than a powered up pacman"
(Lilly Allen / Kaiser Chiefs)
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You make your AJAX call, return the data using XML or JSON and then add to your table using the DOM in javascript. I would suspect that the Microsoft AJAX classes would do this for you, if you're using them.
But, you plainly can't databind in javascript, the objects that support data binding are on the client side.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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My page contains a gridview that gets it's data from a method.
De data comes through, but the grid is uneditable. I need the user to be able to check/uncheck checkboxes and thereby trigering an update method.
I tried with assigning an objectDataSource and with dynamicly assigning a datatable source. Both gave the same result.
What am I doing wrong?
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Hi,
Have u put checkboxes using TemplateColumn or r u using <asp:CheckBoxField>?
if u r using <asp:CheckBoxField> then you may not be able to check/uncheck them.
Thanks and Regards,
Chetan Ranpariya
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Indeed, I used the ItemTemplate and now I can edit. Thx 
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i m using ASP.Net window application. i want to arrange menu vertically instead of horizontally.
it may be either use by C# or javascript.
and how i can include javascript code in C#
yogesh
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The Knowledge wrote: i m using ASP.Net window application.
I doubt that. If it's ASP.NET, it's a web application.
The Knowledge wrote: it may be either use by C# or javascript.
No, it has to be in javascript, because that's what runs on the client
The Knowledge wrote: and how i can include javascript code in C#
Do you mean how do you put javascript code into a page using C# ? Page.RegisterClientScriptBlock, or just put it straight into the ASPX.
Your best bet is to look for existing javascript/css menus that do what you're after.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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no its a window application
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