Dropdown
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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
Show your code
thatraja
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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
Based on your question & this discussion[^], you have used
SelectedValueproperty instead ofDataValueField.thatraja
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Show your code
thatraja
FREE Code Conversion VB6 ASP VB.NET C# ASP.NET C++ JAVA PHP DELPHI ColdFusion
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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
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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
Share the Databind code for
drpCrntState.thatraja
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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
This error occurred when your dropdown is already filled and if you try to assign (selects) that value which was selected previously. so can you provide your code?
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Share the Databind code for
drpCrntState.thatraja
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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; }
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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
Hi Friend, put you code inside on IsPostBack ==false like below code and put the DataTextField and DataValueField properly like this. this code should be in Page_Load events. if (!IsPostBack) { SqlConnection con = new SqlConnection("your connection string here"); SqlDataAdapter da = new SqlDataAdapter("Select StateId,StateName From StateMaster", con); con.Open(); DataSet ds = new DataSet(); da.Fill(ds); DropDownList1.DataSource = ds; DropDownList1.DataTextField = "StateName"; // your dispaly field in dropdownlist DropDownList1.DataValueField = "StateId"; // your value field which you will stare in database DropDownList1.DataBind(); con.Close(); }
Anil Pathak worked on technologies like C#, VB.net, ASP.net, Web Service, WCF, WPF, Silver Light, MVC 3.0, Jquery, Sql Server.
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Hi Friend, put you code inside on IsPostBack ==false like below code and put the DataTextField and DataValueField properly like this. this code should be in Page_Load events. if (!IsPostBack) { SqlConnection con = new SqlConnection("your connection string here"); SqlDataAdapter da = new SqlDataAdapter("Select StateId,StateName From StateMaster", con); con.Open(); DataSet ds = new DataSet(); da.Fill(ds); DropDownList1.DataSource = ds; DropDownList1.DataTextField = "StateName"; // your dispaly field in dropdownlist DropDownList1.DataValueField = "StateId"; // your value field which you will stare in database DropDownList1.DataBind(); con.Close(); }
Anil Pathak worked on technologies like C#, VB.net, ASP.net, Web Service, WCF, WPF, Silver Light, MVC 3.0, Jquery, Sql Server.
thank you anil sir i have solve my porblem...with your suport... tripat bala singh
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This error occurred when your dropdown is already filled and if you try to assign (selects) that value which was selected previously. so can you provide your code?
thank you ajay sir i have solve my porblem...with your suport... tripat bala singh
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thank you ajay sir i have solve my porblem...with your suport... tripat bala singh
welcome dear!!! keep it up... :)