private void btnAddAgent_Click(object sender, EventArgs e)
 {
     //this.Visible = false;
     Frm_AgentMaster F = new Frm_AgentMaster();
     F.ShowDialog();
     //this.Visible = true;
     FillAgent();
     cboAgent.Focus();
 }
 private void agentToolStripMenuItem_Click(object sender, EventArgs e)
 {
     Frm_AgentMaster F = new Frm_AgentMaster();
     F.ShowDialog();
 }