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There is no validator in .net that validate raddatepicker's invalid date. in this case we should use raddatepicker's client event on error. <telerik:RadDatePicker  runat="server" ID="rdpStartDate">            <DateInput runat="server">                <ClientEvents OnError=" ValidateDate " />            </DateInput>        </telerik:RadDatePicker> JavaScript function  ValidateDate (sender,args) {            var reason = args.get_reason();            if (reason === 1)             {                 alert("Invalid Date");            }            if (reason === 2)            {                alert("The Date you have typed is out of range");            } }

Here is a powershell script that copy files from one location to another in same computer/machine. $CurrentLocationandFileName = " C:\Users\Administrator\Desktop\New.txt " $DestinationLocation = " D:\NewFolder " copy $CurrentLocationandFileName -Destination $DestinationLocation

Here is a powershell script that create a new folder or directory. $FolderPathandName =  " c:\Users\Administrator\Desktop\FolderName " [IO.Directory]::CreateDirectory( $FolderPathandName )

Here is a powershell script for delete folder if folder is exist at their location. $Folder=" c:\Users\Administrator\Desktop\NewFolder " If (Test-Path $Folder) { Remove-Item $Folder }