I have use following code to fill the dataset.but there is
an NullExceptionRefernce error occur.
I have check the entire code,but I did not fing any error.
private void button3_Click(object
sender, EventArgs e)
{
try
{
string
sql = "select * from Stud";
DataSet
ds = cl.FillDataset(ds, sql, "Stud");
// dataGridView1.DataSource =
ds.Tables["Stud"];
}
catch
(Exception ex)
{
MessageBox.Show(ex.ToString());
}
public DataSet FillDataset(DataSet
dts, string sql, string
tblname)
{
OleDbCommand
cmd = new OleDbCommand();
OleDbDataAdapter
da = new OleDbDataAdapter(sql,cn);
//DataSet
ds = new DataSet();
try
{
da.Fill(dts, tblname);
}
finally
{
cn.Close();
}
return
dts;
}