User control and clientside script - content of asp:label

[IlseDC]

I made a user control and in this user control I have some clientside script (Page.RegisterClientScriptBlock in the page_load of the user control).
In this script I want to know the content of an ASP-label.

for example:
<asp:label id=lblText runat="server"></asp:label>.

How can I get the content of label lblText in clientside script (javascript)?

I do not know the name of the form on which the user control is.

Thanks.

 

[ca8msm]

Try using the document.getElementById method of javascript.


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[IlseDC]

getElementById does not work.

I tried this:

strScript = "<SCRIPT LANGUAGE='JavaScript'>"
+ "function Test()"
+ "{"
+ "alert(document.getElementById('lblText').value);"
+ "}"
+ "</SCRIPT>";
Page.RegisterClientScriptBlock("TestRoutine", strScript);

 

[ca8msm]

The reasons that getElementById does not work in your example are:

1) The script is written out to the page but nothing actually executes it
2) I'm presuming that by the name of the id you are lookng for , it is an ASP label control that you have used. If it is, then this is written out to the page as a <span> element and therefore it doesn't actually have a value e.g.

From the View Source, you will see:

<span id="Label1">Label</span>

instead of:

<span id="Label1" value="Label">Label</span>

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