how to clear a datagrid on a button clickyou

Question

How to clear a datagrid on a button click?

You require to Clear the DataSource of the dadaGrid.

So try this:

dataSet1.Clear();

dataGrid1.DataSource = dataSet1.TableNameHere.DefaultView;

or

C#: dataGrid1.DataSource = null; 

VB: dataGrid1.DataSource = nothing