Calling & Writing Javascript Function From Server Side Code Behind & From Html
Writing JavaScript function in server side code behind and calling from HTML
//Server Side
private void Page_Load(object sender, System.EventArgs e)
{
string jScriptStr;
jScriptStr=”<script>function JavScriptFn(){alert” +
” (’Client Function in javascript is call’)}</script>”;
}
//HTML side
< A onclick=”JavScriptFn()” >
< asp:Label id=”Label1″ runat=”server” Width=”281px”
ForeColor=”#8080FF”>Click to call Javascript function.
</asp:Label></A >
Writing JavaScript in HTML and calling it from code-behind
//Html side
<Head >
<script>
function ReqField1Validator()
{
if (document.forms[0].txtField1.value == ‘’)
{
alert(’TextBox cannot be empty’)
return false
}
return true
}
</script>
</Head >
//Server Side
private void Page_Load(object sender, System.EventArgs e)
{
btnOK.Attributes.Add(”onclick”,”return ReqField1Validator()”);
}
