to get vale in javascript to c#

[P_Elza]

hi all i have some values on html page in javascript. i want to get that values in C#. how to do that. I tried displaying it on a label, and retreave it from there. This is the function in javascript function display() { var localpath1 = document.getElementById('lblerr'); lblerr.innerText = localpath; }it is diplaying the value on label. lblerr is the id of label. am calling this function on pageload but when i try to get the value using lblerr.text, it is showing null. y is it so? how to get value on the label

[Prateek G]

innerText is a different property its not same as .Text. Make a hidden variable in a form with runat="server" and assign it that value. In .aspx

In javascript u can write document.getElementById('hdnVar').value = localpath; and in c# lblerr.Text = hdVar.value.ToString(); Try it, It should work. Prateek... Prateek..

[P_Elza]

i had tried this one also previously. error was occuring the error is System.NullReferenceException:Object reference not set to an instance of an object what is this? how to rectify this.

[Andrei Ungureanu]

P_Elza wrote:

m calling this function on pageload but when i try to get the value using lblerr.text, it is showing null.

Try using this:

if (this.IsPostback)
{
string value = Request["lblerr"];
}

Hope it helps. PS: Don't open new topics....continue on the one already opened and try explain more detailed.
Another hint: This is the C# forum...there is an ASP.NET forum also.

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