Validate drop down list before submitting the form

Question

Please Help I want to Validate Drop Down List and Submit Form but it doesn't doing The form gets submitted with out validating the form and please select state and please select city gets stored in database New Employee Registeration Form.aspx New Employee Registeration Form. Your Full Name : Gender : Male Female Email Address : Mobile Number : Address : State : City of Resident : Pin Code : Upload Your Image : Upload Your Resume : I Accept all Terms & Conditions.   New Employee Registeration Form.aspx.cs using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Configuration; using System.Data; using System.Data.SqlClient; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { DropDownListNewEmployeeRegisterationFormStates.DataSource = GetData(spAllStatesDetails null); DropDownListNewEmployeeRegisterationFormStates.DataBind(); ListItem StateSelectPrompt = new ListItem(Please Select State -1); StateSelectPrompt.Selected = true; DropDownListNewEmployeeRegisterationFormStates.Items.Insert(0 StateSelectPrompt); ListItem CitySelectPrompt = new ListItem(Please Select City -1); CitySelectPrompt.Selected = true; DropDownListNewEmployeeRegisterationFormCity.Items.Insert(0 CitySelectPrompt); DropDownListNewEmployeeRegisterationFormCity.Enabled = false; } LabelNewEmployeeRegisterationFormGender.Text = string.Empty; RadioButtonNewEmployeeRegisterationFormTermsandCondition.Checked = true; LabelNewEmployeeRegisterationFormImageUploadMessage1.Text = string.Empty; LabelNewEmployeeRegisterationFormImageUploadMessage2.Text = string.Empty; LabelNewEmployeeRegisterationFormResumeUploadMessage1.Text = string.Empty; LabelNewEmployeeRegisterationFormResumeUploadMessage2.Text = string.Empty; } private DataSet GetData(string ParameterStatesSqlParameter ParameterCity) { string CSCity = ConfigurationManager.ConnectionStrings[DBCS].ConnectionString; SqlConnection Con = new SqlConnection(CSCity); SqlDataAdapter DA = new SqlDataAdapter(ParameterStates Con); DA.SelectCommand.CommandType = CommandType.StoredProcedure; if (ParameterCity != null) { DA.SelectCommand.Parameters.Add(ParameterCity); } DataSet DS = new DataSet(); DA.Fill(DS); return DS; } protected void ButtonNewEmployeeRegisterationFormSubmit_Click(object sender EventArgs e) { String InsertData = ConfigurationManager.ConnectionStrings[DBCS].ConnectionString; using (SqlConnection Con = new SqlConnection(InsertData)) { SqlCommand Cmd = new SqlCommand(spNewEmployeeDataInsertion Con); Cmd.CommandType = System.Data.CommandType.StoredProcedure; Cmd.Parameters.AddWithValue(@NewEmployeeFirstName TextBoxNewEmployeeRegisterationFormFirstName.Text); Cmd.Parameters.AddWithValue(@NewEmployeeMiddleName TextBoxNewEmployeeRegisterationFormMiddleName.Text); Cmd.Parameters.AddWithValue(@NewEmployeeLastName TextBoxNewEmployeeRegisterationFormLastName.Text); Cmd.Parameters.AddWithValue(@NewEmployeeGender DropDownListNewEmployeeGender.SelectedValue); Cmd.Parameters.AddWithValue(@NewEmployeeEmailAddress TextBoxNewEmployeeRegisterationFormEmailAddress.Text); Cmd.Parameters.AddWithValue(@NewEmployeeMobileNumber Convert.ToInt64(TextBoxNewEmployeeRegisterationFormMobileNumber.Text)); Cmd.Parameters.AddWithValue(@NewEmployeeAddress TextBoxNewEmployeeRegisterationFormAddress.Text); Cmd.Parameters.AddWithValue(@NewEmployeeState DropDownListNewEmployeeRegisterationFormStates.SelectedItem.Text); Cmd.Parameters.AddWithValue(@NewEmployeeCity DropDownListNewEmployeeRegisterationFormCity.SelectedItem.Text); Cmd.Parameters.AddWithValue(@NewEmployeePinCode TextBoxNewEmployeeRegisterationFormPinCode.Text); SqlParameter EmployeeIDParameter = new SqlParameter(); EmployeeIDParameter.ParameterName = @EmployeeID; EmployeeIDParameter.SqlDbType = System.Data.SqlDbType.Int; EmployeeIDParameter.Direction = System.Data.ParameterDirection.Output; Cmd.Parameters.Add(EmployeeIDParameter); Con.Open(); Cmd.ExecuteNonQuery(); } } protected void RadioButtonNewEmployeeRegisterationFormTermsandCondition_CheckedChanged(object sender EventArgs e) { if (RadioButtonNewEmployeeRegisterationFormTermsandCondition.Checked==false) { LabelNewEmployeeRegisterationFormTermsandCondition.Text = Please Select the Terms and Conditions.; } } protected void ButtonNewEmployeeRegisterationFormImageUpload_Click(object sender EventArgs e) { if (FileUploadNewEmployeeRegisterationFormImageUpload.HasFile) { String ImageExtension = System.IO.Path.GetExtension(FileUploadNewEmployeeRegisterationFormImageUpload.FileName); if (ImageExtension.ToLower() != .png && ImageExtension.ToLower() != .jpg && ImageExtension.ToLower() != .jpeg) { LabelNewEmployeeRegisterationFormImageUploadMessage1.Text = Only .png or .jpg or .jpeg Files are Accepted.; LabelNewEmployeeRegisterationFormImageUploadMessage1.ForeColor = System.Drawing.Color.Red; } else { int ImageSize = FileUploadNewEmployeeRegisterationFormImageUpload.PostedFile.ContentLength; if (ImageSize > 2097152) { LabelNewEmployeeRegisterationFormImageUploadMessage1.Text = ImageFile Size Should bee less Than 512 KB.; LabelNewEmployeeRegisterationFormImageUploadMessage1.ForeColor = System.Drawing.Color.Red; } else { FileUploadNewEmployeeRegisterationFormImageUpload.SaveAs(Server.MapPath(~/New Employee/Upload/Images/ + FileUploadNewEmployeeRegisterationFormImageUpload.FileName)); LabelNewEmployeeRegisterationFormImageUploadMessage2.Text = Image File Uploaded; LabelNewEmployeeRegisterationFormImageUploadMessage2.ForeColor = System.Drawing.Color.Green; } } } else { LabelNewEmployeeRegisterationFormImageUploadMessage1.Text = Please Select Image File to Upload; LabelNewEmployeeRegisterationFormImageUploadMessage1.ForeColor = System.Drawing.Color.Red; } } protected void ButtonNewEmployeeRegisterationFormResumeUpload_Click(object sender EventArgs e) { if (FileUploadNewEmployeeRegisterationFormResumeUpload.HasFile) { String ResumeExtension = System.IO.Path.GetExtension(FileUploadNewEmployeeRegisterationFormResumeUpload.FileName); if (ResumeExtension.ToLower() != .doc && ResumeExtension.ToLower() != .docx ) { LabelNewEmployeeRegisterationFormResumeUploadMessage1.Text = Only .doc or .docx or .jpeg Files are Accepted.; LabelNewEmployeeRegisterationFormResumeUploadMessage1.ForeColor = System.Drawing.Color.Red; } else { int ResumeSize = FileUploadNewEmployeeRegisterationFormResumeUpload.PostedFile.ContentLength; if (ResumeSize > 2097152) { LabelNewEmployeeRegisterationFormResumeUploadMessage1.Text = Resume File Size Should bee less Than 2 MB.; LabelNewEmployeeRegisterationFormResumeUploadMessage1.ForeColor = System.Drawing.Color.Red; } else { FileUploadNewEmployeeRegisterationFormResumeUpload.SaveAs(Server.MapPath(~/New Employee/Upload/Resumes/ + FileUploadNewEmployeeRegisterationFormResumeUpload.FileName)); LabelNewEmployeeRegisterationFormResumeUploadMessage2.Text = Resume File Uploaded; LabelNewEmployeeRegisterationFormResumeUploadMessage2.ForeColor = System.Drawing.Color.Green; } } } else { LabelNewEmployeeRegisterationFormResumeUploadMessage1.Text = Please Select Resume File to Upload; LabelNewEmployeeRegisterationFormResumeUploadMessage1.ForeColor = System.Drawing.Color.Red; } } protected void DropDownListNewEmployeeRegisterationFormStates_SelectedIndexChanged(object sender EventArgs e) { if (DropDownListNewEmployeeRegisterationFormStates.SelectedIndex==0) { ListItem CitySelectPrompt = new ListItem(Please Select City -1); DropDownListNewEmployeeRegisterationFormCity.Items.Insert(0 CitySelectPrompt); DropDownListNewEmployeeRegisterationFormCity.Enabled = false; } else { DropDownListNewEmployeeRegisterationFormCity.Enabled = true; SqlParameter GetParameter = new SqlParameter(@StateIDDropDownListNewEmployeeRegisterationFormStates.SelectedValue); DataSet DSCity = GetData(spAllCityDetails GetParameter); DropDownListNewEmployeeRegisterationFormCity.DataSource = DSCity; DropDownListNewEmployeeRegisterationFormCity.DataBind(); ListItem CitySelectPrompt = new ListItem(Please Select City... -1); DropDownListNewEmployeeRegisterationFormCity.Items.Insert(0 CitySelectPrompt); } } protected void DropDownListNewEmployeeRegisterationFormCity_SelectedIndexChanged(object sender EventArgs e) { } protected void DropDownList1_SelectedIndexChanged(object sender EventArgs e) { } }

Joginder Banger · Answer

this type of problem asked many time different type of forms. use google i think best solution can you find. Ok don't worry i trying to give a best solution according your problem. If you have knowledge of javascript you can use the javascript validation or anther way is use the validation control. try this type ErrorMessage=select your state plz ControlToValidate=your control name ValidationGroup InitialValue=select state> when you are press the form submit button then message show select your state plz. Note in Button coding add the same validation group other wise same error you will show. for any query hit to reply jsb