thank you ajay sir i have solve my porblem...with your suport... tripat bala singh

thank you anil sir i have solve my porblem...with your suport... tripat bala singh

public void BindCStateDrp() { var stateList = balStateObj.GetState(0); drpCrntState.DataSource = stateList; drpCrntState.DataTextField = "StateName"; drpCrntState.DataValueField = "StateID"; drpCrntState.DataBind(); drpCrntState.Items.Insert(0, new ListItem("--Select State--", "-1")); } DAL ----------------- public List GetStates(int stateID) { List lstState = new List(); try { SqlParameter[] paramList = { new SqlParameter("@State_Id" , stateID) }; SqlDataReader reader = SqlHelper.ExecuteReader(CommandType.StoredProcedure, "State_Select_Sp", paramList); while (reader.Read()) { BOState state = new BOState(); state.StateID = (Int32)reader[0]; state.StateName = (String)reader[1]; state.StateStatus = (bool)reader[2]; lstState.Add(state); } } catch { } return lstState; }

protected void btnSave_Click(object sender, EventArgs e) { try { if (btnSave.Text == "Save") { BOStudentDetails ObjStudent = new BOStudentDetails(); ObjStudent.SchoolID = Convert.ToInt32(drpSchool.SelectedValue); ObjStudent.ClassID = Convert.ToInt32(drpClass.SelectedValue); ObjStudent.StudentName = txtStudentFname.Text+ ' ' + txtStudentMname.Text + ' ' + txtStudentLname.Text; //ObjStudent.StudentPhoto = "fsdfs"; ObjStudent.StudentDob = txtdob.Text; ObjStudent.StudentAddmissionDate = txtAdmissionDate.Text; ObjStudent.StudentFthName = txtFthName.Text; ObjStudent.StudentMthName = txtMthName.Text; ObjStudent.StudentCategory = Convert.ToString(drpCategory.SelectedItem); ObjStudent.StudentGender = Convert.ToString(drpGender.SelectedItem); ObjStudent.StudentMobile1 = txtMobile1.Text; ObjStudent.StudentMobile2 = txtMobile2.Text; ObjStudent.StudentLandline = txtLandlinePhon.Text; ObjStudent.StudentDiscription = txtDiscription.Text; ObjStudent.StudentPrmAdd = txtPrmAdd.Text; ObjStudent.StudentPrmState =Convert.ToString(drpPrmState.SelectedItem); ObjStudent.StudentPrmCity = Convert.ToString(drpPrmCity.SelectedItem); ObjStudent.StudentPrmLocation = Convert.ToString(drpPrmLocation.SelectedItem); ObjStudent.StudentPrmPin = txtPrmPin.Text; ObjStudent.StudentCrntAdd = txtCrntAdd.Text; ObjStudent.StudentCrntState = Convert.ToString(drpCrntState.SelectedItem); ObjStudent.StudentCrntCity = Convert.ToString(drpCrntCity.SelectedItem); ObjStudent.StudentCrntLocation = Convert.ToString(drpCrntLocation.SelectedItem); ObjStudent.StudentCrntPin = txtCrntPin.Text; if (flupldStdPhoto.HasFile) { string StudentExtension = Path.GetExtension(flupldStdPhoto.FileName); if (!StudentExtension.ToLower().Equals(".gif") && !StudentExtension.ToLower().Equals(".jpg") && !StudentExtension.ToLower().Eq

i have a dropdown in my page this is use for State and i have bound state list in dropdown but when submit form then error msg show "'drpCrntState' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value" tripat bala singh