Tuesday, 22 January 2013 13:55

how to use RadioButton OnCheckedChanged event

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Its easy to implement OnCheckedChanged event of RadioButton
control but most programmers makes mistake by not
including AutoPostBack="True" property in radiobutton
control.sometimes OnCheckedChanged not works for that
reason.here are the full working codes -

in page -

<asp:RadioButton ID="selectAddress1" runat="server" AutoPostBack="True"
Checked="true" OnCheckedChanged="checking_validation_first" /></b>

<b><asp:RadioButton ID="selectAddress2" AutoPostBack="True"
runat="server" OnCheckedChanged="checking_validation_second" /></b>

on code behind page -

protected void checking_validation_first(object source, EventArgs e)
if (selectAddress2.Checked == true)
{ selectAddress2.Checked = false; }
protected void checking_validation_second(object source, EventArgs e)
if (selectAddress1.Checked == true)
{ selectAddress1.Checked = false; }

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