How can I clear rows in DataGridView with C#?

Question

Following Error in this line.

datagridview1.Rows.Clear()

but this line gives error:

Cannot clear this list.

Answer 1

I had the same problem I tried with many solutions.

In the end I realized that we can't clear the DataGridView if we use it's property "DGV.Datasource" because DGV takes its data from the dataset so you need to clear the DataTable rows

Dataset.Tables["TableName"].Rows.Clear();

If you use this function in the Load of the Form you need to add a condition

if (DataSet.Tables["TableName"] !=null)    
    Dataset.Tables["TableName"].Rows.Clear();

or you will get this error

Object reference not set to an instance of an object.