How to filter data before filling radscheduler table adapter?

hello guys,

I am using Radscheduler to develop employee Timesheet program, I use codeless data binding (link below)

Codeless data binding - WinForms Scheduler Control - Telerik UI for WinForms

I am face with a data filter problem. Each employee is from different location (Employee Table have their own ID(primary key) ,location ID, StartTime, EndTime), so for each location when they use this app, I want they only can view their own timesheet.

So into my

private void Form_Load(object sender, EventArgs e)
        {
            this.tS_TimeSheetTableAdapter.Fill(this.XXX_XXDataSet.TS_TimeSheet);

       }

How should I filter data by location ID before it fill the tableadapter?

Plz help me out.

Thanks,

Mike