get html control Id in C# page

Question

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hii all
i have an input of the type file in html page ,
i want to get this Id and apply the code of upload an image on it.
but, Unfortunately the code doesn't see the control

C#

Control myControl1 = FindControl("FileUpload1");
if (myControl1 != null)
{
}
else
{
    Response.Write("Control not found");
}

HTML

<input type="file" name="FileUpload1" id="FileUpload1" value="FileUpload1" />

any help

thanks

Posted 13-Sep-11 0:41am

moon2011

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Herman<T>.Instance · Answer 1 · 2011-09-13T00:43:00

Solution 1

add runat="server" to Input tag and you can access the FileUpload1 from codebehind

Posted 13-Sep-11 0:43am

Herman<T>.Instance

Comments

moon2011 13-Sep-11 6:52am

how can i put runat="server" from client side control???
it appears an error tells me "The value property on HtmlInputFile is not settable.
"

Herman<T>.Instance 13-Sep-11 6:55am

<input type="file" name="FileUpload1" id="FileUpload1" value="FileUpload1" runat="server" />

works for me!

BobJanova 13-Sep-11 7:53am

Read the error message: you can't set the 'value' attribute. I don't see why you're doing that anyway, so just remove it.

Herman<T>.Instance 13-Sep-11 7:57am

yes you are right

Herman<T>.Instance 13-Sep-11 6:59am

see http://support.microsoft.com/kb/323246

moon2011 13-Sep-11 7:08am

did it work on asp.net??????

Herman<T>.Instance 13-Sep-11 7:09am

yup

[no name] 13-Sep-11 13:06pm

my 5!

get html control Id in C# page

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get html control Id in C# page

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