or
Dim btn as New RadButton()btn.AutoPostBack = Falsebtn.OnClientClicked = "BtnClicked"function BtnClicked(sender, args){ alert("Hey!");}

<telerik:RadDatePicker ID="RadDatePicker1" DateInput-Label="TESTO:" runat="server"> <DateInput runat="server" /></telerik:RadDatePicker> TextBox txtOrderNumber = (TextBox)rptC.Items[j].FindControl("txtOrderNumber"); RegExpTextBoxSetting RegExpBehavior1 = (RegExpTextBoxSetting)RadInputManager1.GetSettingByBehaviorID("RegExpBehavior1"); RegExpBehavior1.TargetControls.Add(new TargetInput(txtOrderNumber.UniqueID, true));