protected void btnSend_Click(object sender, EventArgs e) { try { CallAPI _ObjCall = new CallAPI(); int z = 0; string[] _SrNoGUID; if (ddlTownship.SelectedIndex != 0) { if (ddlSector.SelectedIndex != 0) { if (ddlBuilding.SelectedIndex != 0) { if (txtTitle.Text != "") { if (txtMessage.Text != "") { for (int j = 0; j < chkFlats.Items.Count; j++) { if (chkFlats.Items[j].Selected == false) { z++; } } if (z == chkFlats.Items.Count) { lblmsg.Text = "Please Select Flat No"; return; } else { for (int j = 0; j < chkFlats.Items.Count; j++) { if (chkFlats.Items[j].Selected == true) { _SrNoGUID[j] = chkFlats.DataValueField; } } if (_SrNoGUID.Length > 0) { var _result = _ObjCall.call(txtTitle.Text, txtMessage.Text, _SrNoGUID, ddlBuilding.DataValueField, ddlSector.DataValueField, ddlTownship.DataValueField); } } } else { lblmsg.Text = "Please enter Title"; SetFocus(txtTitle); return; } } else { lblmsg.Text = "Please enter Message"; SetFocus(txtMessage); return; } } else { lblmsg.Text = "Please select Building"; chkAllFLats.Checked = false; chkAllFLats.Visible = false; chkFlats.Items.Clear(); return; } } else { lblmsg.Text = "Please select Sector"; ddlBuilding.Items.Clear(); chkAllFLats.Checked = false; chkAllFLats.Visible = false; chkFlats.Items.Clear(); SetFocus(ddlSector); } } else { lblmsg.Text = "Please select Township"; ddlSector.Items.Clear(); ddlBuilding.Items.Clear(); chkAllFLats.Checked = false; chkAllFLats.Visible = false; chkFlats.Items.Clear(); SetFocus(ddlTownship); return; } } catch (Exception ex) { lblmsg.Text = ex.Message; return; } }