private void button1_Click(object sender, EventArgs e)
 {
     //pass text boxes values to Business Layer
     _bl.sUserName = textEdit_Name.Text;
     _bl.sUserPass = textEdit_Pass.Text;
     DataTable dt = _bl.GetDataTable();
 }
 private void button1_Click(object sender, EventArgs e)
 {
     //pass text boxes values to Business Layer
     DataTable dt = _bl.GetDataTable(textEdit_Name.Text, textEdit_Pass.Text);
 }