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It means that the Html (Aspx form gets converted to html form in client side) form has not been posted back (Page.IsPostBack is false) or the converted Html Control with that name doesnot exist.
If you are posting back the form and then try with TextBox1.ClientID.
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Good answer!
sunaSaRa Imdadhusen
+91 99095 44184
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1. User is requesting the page for the first time (It is a GET request and not a post back)
2. May be a partial submission (using Ajax or so..)
BTW, Instead of using TextBox1.Text, Why you want to access it in the long way?
"Never put off until run time what you can do at compile time."
- David Gries, in "Compiler Construction for Digital Computers", circa 1969.
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Good answer!
sunaSaRa Imdadhusen
+91 99095 44184
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Thank you, guys;
My problem was that; somehow there was no input with that name (the name of the input was 'ControlName$InputName').
I apologize from you as my experience in this field was very little.
Sorry again; 
Help people,so poeple can help you.
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This is the default behaviour whereby names get mangled. When you think about it, it makes perfect sense - the ID has to be unique, now suppose you have two usercontrols on the same page with the ID txtName in them; obviously, the ID would clash if that's all it was - so the rendering cycle mangles the name to make it unique. If you want to find out what that ID is, use ClientID, i.e. txtName.ClientID.
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Sir, I have recently learned that a TextBox with the ID 'txtName' in a parent Control 'Parent' is rendered like
<input type="text" id="Parent_txtName" name="Parent$txtName" />
where :
txtName.ClientID = "Parent_txtName" (the id of the html input).
txtName.UniqueID = "Parent$txtName" (the name of the html input).
and
the calling of
Sys.WebForm.Init( ... );
will cause the invocation of
Sys$WebForm$Init : function ( ...) {}
100 ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
Help people,so poeple can help you.
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That's right. That's the mangling I was talking about. Now, if you use plain ol' JavaScript, you need to use the ClientID which gives you the id of the object which you can then manipulate from the DOM.
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I have a file in local computer and i need to access that file from server, if i use Environment.GetFolderPath Method (Environment.SpecialFolder) it is not getting accessed.
How to get files in local computer in asp.net
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You cannot just get files from local computer through a website. This would be a huge security issue.
You either provide a file select field in the web page where the user selects a file. Or you create a desktop application / service (which you need to install of all client machines that exposes an interface for getting files)
This will do for now
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hi
thanks for your reply.
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I am using a .ascx page in a aspx page. The ascx page contains a textbox and a search button. The Enter key was not working with search but when we put following line
textboxsearchInput.Attributes.Add("onkeydown", "if(event.which || event.keyCode){if ((event.which == 13) || (event.keyCode == 13)) {document.getElementById('" + btnSearch.ClientID + "').click();return false;}} else {return true}; ");
on the page load method of the ascx page the Enter key starts working but now the auto complete functionality of the text box is not working, When we go to any option in the auto complete drop down and press Enter the form is submitted without considering that option.
Please help if any one have some idea.
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You can set Default Button instead of assign Click Event of textbox
just add the following code:
<asp:Panel runat="server" ID="pnlSearch" DefaultButton="btnSearch">
<asp:TextBox runat="server" ID="txtSearch"></asp:TextBox>
<asp:Button runat="server" ID="btnSearch" />
</asp:Panel>
Thanks,
Imdadhusen
sunaSaRa Imdadhusen
+91 99095 44184
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I have just installed Visual Studio 2010 with SQL Server 2008 Express and I can not use WebParts, when I introduce the WebPartManager in the page and I execute the application it yields an error telling that it´s not able of creating the ASPNETDB datatable..
the error is: Error in automátic creation of the SQLExpress Database
Anybody knows the problem and it's solution
Best Regards
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Sounds like a permissions error, or SQL Express isn't installed. What OS are you running this on?
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hey all,
i'm using ajax tab container control on form.
and its has 4 tabs. and each tabs contains a datalist
but i have to move on some abc.aspx page whenever i click on datalist's item.
and i'm using its item command event for that.
but its not being fired on tabstrip control
help me...
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Sir, does this line of code remind you with some thing?
if (typeof (Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();
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I am trying to add WeMmoney functionality to my website. I have heard that there is an API, but I couldn't find it and I couldn't find ant English tutorial about the issue(I have found only Russian tutorial).
I have tried to google it, but I've got non-relevant results. I'm looking for someone who has some information about the WebMoney API and can help me with this issue.
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Sir, I think you can use google Translate.
wish you lck; 
Help people,so poeple can help you.
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This may help[^]
------------------------------------
I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave
CCC Link[ ^]
Trolls[ ^]
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Over my head, Sir.
100
Help people,so poeple can help you.
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I think you can use this.
100
Help people,so poeple can help you.
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Hi folks,
I want to use google maps on my asp.net application and in this application user can mark different places.
I want to savemarked places on database and when user LogIn in his account, in profile the user can view marked places on google map.
THX
I Love T-SQL
"Don't torture yourself,let the life to do it for you."
If my post helps you kindly save my time by voting my post.
www.aktualiteti.com
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Splendid. That's absolutely spiffing.
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Certainly sounds interesting, let us know how you get on with that.
Or do you have a specific question?
------------------------------------
I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave
CCC Link[ ^]
Trolls[ ^]
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