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If I use both onclick() and onClientClick() can I make sure that server side will be called only after client side function returns TRUE or vice versa?
For example:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Import Namespace="System.Xml" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%
protected void save_n_display(object sender, EventArgs e)
{
// This must be called when validate() returns true...
}
%>
<asp:Button ID="Button1" OnClientClick="validate()" onClick="save_n _display" "Text="Check" runat="server" />
<script type="text/javascript" language="javascript">
function validate() // client side Validation is done
{
}
</script>
So can I use onclick() and onClientClick() or do I need something different for this?
I even tried passing variables from javascript to asp functions so when validate returns true then save_n _display will be called.
908
However you get your client side click event registered it doesn't matter. Though if you are using a server control then you do want to use onclientclick. But the key is that you want to use return Validate(). Then in your validate method you return a true or false value depending on whether it validated or not.
EDIT: So make onclientclick look like this:
onclientclick="return Validate();"
Then in the validate function:
function Validate()
{
return true;
}
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