Home / Community & Support / Code Library / ASP.NET and ASP.NET AJAX > ComboBox > Various RadComboBox implementations with Required Field Validation

• KSYL

  Posted on Mar 25, 2009 (permalink)

  Requirements
  RadControls version	Q1 2009
  .NET version	3.5
  Visual Studio version	2008
  programming language	C#,Javascript
  browser support	Tested On IE 7.0.5730

  
  PROJECT DESCRIPTION 
  This project shows how to use
  

  1. Standard CheckBoxes along with RadComboBox templates to select multiple RadComboBox items with required field validation.
  2. AllowCustomText property applied RadComboBox with required field validation
  3. LoadOnDemand property applied RadComboBox with required field validation.

  Briefly, I create a web page with 3 different radcombobox requirements.

  1. Multiple Selection RadComboBox
     • Because of validation, text field is set to empty when user enters custom text and not checked any item or user enters another character after select any item.
     • So it always passes the validation correctly.
  2. AllowCustomText property applied RadComboBox
     • Validation gives error when user try to enter a text that is not in the list.
     • Text is set to empty with OnClientBlurHandler when user try to enter a text that is not in the list.
  3. LoadOnDemand property applied RadComboBox
     • Validation gives error when user try to enter a text that is not in the list.
     • Text is set to empty with OnClientBlurHandler when user try to enter a text that is not in the list.

  Main goal of this project is to use different implementations of RadComboBox in the same page.

  Attached files

  • variousradcomboboxeswithvalidation.zip

• sudhir babu

  Posted on Feb 21, 2010 (permalink)

  Hi
  
  I seen u r  example article for required filed validation with radcombobox  ,but Radcombo with checkboxes is there whenever iam selecting tht checkboxes ,it is not selecting,required validator event is raised
  please help me .

• Peter Peter

  Posted on Feb 25, 2010 (permalink)

  Hi sudhir,
  
  I tested the code library project with the current official version - 2009.3.1314, but everything worked as expected. Are there any specific steps that lead to the problem you experience?
  
  
  Best wishes,
  Peter
  the Telerik team

  
  Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

• Chanan Zass Intermediate

  Posted on Mar 8, 2010 (permalink)

  Greetings,
  
  The RadComboBox validator works fine for me in a standard page and also when using a MasterPageFile.
  However, we're now trying to use it with a CreateUserWizard control, where the required validator does not seem to be working.
  
  There's no problem validating the combobox on the server-side [accessing the control via - CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("cboCountries")] but we can't figure out a way to validate on the client-side.
  
  Using version 2009.3.1314.35 .
  

   

  <asp:CreateUserWizard ID="CreateUserWizard1" runat="server"

  BackColor="#F7F6F3" BorderColor="#E6E2D8" BorderStyle="Solid"

  BorderWidth="1px" CellPadding="10" CellSpacing="10"

  Font-Names="Verdana" Font-Size="12px"

  EditProfileUrl="~/Default.aspx"

  FinishDestinationPageUrl="~/Default.aspx"

  ContinueDestinationPageUrl="~/Default.aspx">

  <MailDefinition

  Subject="Registration Completed"

  BodyFileName="~/Admin/RegistrationCompleteMail.en.txt">

  </MailDefinition>

  <SideBarStyle BackColor="#5D7B9D" BorderWidth="0px" Font-Size="0.9em"

  VerticalAlign="Top" />

  <SideBarButtonStyle BorderWidth="0px" Font-Names="Verdana" ForeColor="White" />

  <ContinueButtonStyle BackColor="#FFFBFF" BorderColor="#CCCCCC"

  BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana"

  ForeColor="#284775" />

  <NavigationButtonStyle BackColor="#FFFBFF" BorderColor="#CCCCCC"

  BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana"

  ForeColor="#284775" />

  <HeaderStyle BackColor="#5D7B9D" BorderStyle="Solid" Font-Bold="True"

  Font-Size="0.9em" ForeColor="White" HorizontalAlign="Center" />

  <CreateUserButtonStyle BackColor="#FFFBFF" BorderColor="#CCCCCC"

  BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana"

  ForeColor="#284775" />

  <TitleTextStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

  <StepStyle BorderWidth="0px" />

  <WizardSteps>

  <asp:CreateUserWizardStep runat="server" Title="Registrazione" ID="CreateUserWizardStep1">

  <ContentTemplate>

  <table border="0" cellpadding="3" cellspacing="3" style="font-family:Verdana;font-size:100%;">

  <tr>

  <td align="center" colspan="2" style="color:White;background-color:#5D7B9D;font-weight:bold; text-align: center;">

  <asp:Label ID="lblCreateNewUser" runat="server"

  Text="<%$ Resources:MainResource, CreateNewUser %>"></asp:Label></td>

  </tr>

  <tr>

  <td colspan="2" align="right" style="color: #FF0000; text-align: center;">

  <asp:Label ID="lblRedFieldsAreRequired" runat="server"

  Text="<%$ Resources:MainResource, RedFieldsAreRequired %>" /></td>

  </tr>

  <tr>

  <td align="right" style="color: #FF0000">

  <asp:Label ID="lblUserName" runat="server" AssociatedControlID="UserName"

  Text="<%$ Resources:MainResource, DesiredUserName %>">:</asp:Label>

  </td>

  <td>

  <asp:TextBox ID="UserName" runat="server"></asp:TextBox>

  <asp:RequiredFieldValidator ID="reqUserNameRequired" runat="server"

  ControlToValidate="UserName" ErrorMessage="*"

  ValidationGroup="CreateUserWizard1" />

  </td>

  </tr>

  <tr>

  <td align="right" style="color: #FF0000">

  <asp:Label ID="lblPassword" runat="server" AssociatedControlID="Password"

  Text="<%$ Resources:MainResource, LoginPassword %>">Password:</asp:Label>

  </td>

  <td>

  <asp:TextBox ID="Password" runat="server" TextMode="Password"></asp:TextBox>

  <asp:RequiredFieldValidator ID="reqPasswordRequired" runat="server"

  ControlToValidate="Password" ErrorMessage="*"

  ValidationGroup="CreateUserWizard1" />

  </td>

  </tr>

  <tr>

  <td align="right" style="color: #FF0000">

  <asp:Label ID="lblConfirmPassword" runat="server"

  Text="<%$ Resources:MainResource, ConfirmPassword %>"

  AssociatedControlID="ConfirmPassword">:</asp:Label>

  </td>

  <td>

  <asp:TextBox ID="ConfirmPassword" runat="server" TextMode="Password"></asp:TextBox>

  <asp:RequiredFieldValidator ID="ConfirmPasswordRequired" runat="server"

  ControlToValidate="ConfirmPassword"

  ErrorMessage="*"

  ValidationGroup="CreateUserWizard1">*</asp:RequiredFieldValidator>

  </td>

  </tr>

  <tr>

  <td align="right" style="color: #FF0000">

  <asp:Label ID="lblEmail" runat="server"

  Text="<%$ Resources:MainResource, Email %>"

  AssociatedControlID="Email">E-mail:</asp:Label>

  </td>

  <td>

  <asp:TextBox ID="Email" runat="server"></asp:TextBox>

  <asp:RequiredFieldValidator ID="reqEmailRequired" runat="server"

  ControlToValidate="Email" ErrorMessage="*"

  ValidationGroup="CreateUserWizard1">*</asp:RequiredFieldValidator>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label ID="lblNameFirst" runat="server"

  Text="<%$ Resources:MainResource, FirstName %>"

  AssociatedControlID="txtNameFirst">First Name</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtNameFirst" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblNameMiddle" Text="<% Resources:MainResource, MiddleName %>">Middle Name</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtNameMiddle" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblNameLast" Text="<% Resources:MainResource, LastName %>">Last Name</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtNameLast" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblCompany" Text="<% Resources:MainResource, Company %>">Company</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtCompanyName" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblStreet" Text="<% Resources:MainResource, Street %>">Street</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtStreet" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblCity" Text="<% Resources:MainResource, City %>">City</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtCity" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblProvince" Text="<% Resources:MainResource, Province %>">Province</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtProvince" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblZip" Text="<% Resources:MainResource, Zip %>">Zip</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtZip" runat="server" Width="75px"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  Country:</td>

  <td>

  <telerik:RadComboBox ID="cboCountryCode_Ak"

  runat="server" Width="150px" Height="175px"

  EmptyMessage="Enter a Country"

  EnableLoadOnDemand="True"

  ShowMoreResultsBox="True"

  EnableVirtualScrolling="True"

  CausesValidation="False"

  AllowCustomText="True"

  MarkFirstMatch="True">

  <WebServiceSettings Method="GetCountries" Path="GetCountries.asmx" />

  </telerik:RadComboBox>

  <asp:RequiredFieldValidator ID="reqCountry"

  ControlToValidate="cboCountryCode_Ak" runat="server"

  ErrorMessage="*">

  </asp:RequiredFieldValidator>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="lblPhone1" Text="<% Resources:MainResource, Phone %>">Phone</asp:Label> 1:</td>

  <td>

  <asp:TextBox ID="txtPhone1" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right">

  <asp:Label runat="server" ID="Label1" Text="<% Resources:MainResource, Phone %>">Phone</asp:Label> 2:</td>

  <td>

  <asp:TextBox ID="txtPhone2" runat="server"></asp:TextBox>

  </td>

  </tr>

  <tr>

  <td align="right" style="color: #FF0000">

  <asp:Label runat="server" ID="Label2" Text="<% Resources:MainResource, ParentCode %>">Parent Distributor or Dealer Code</asp:Label>:</td>

  <td>

  <asp:TextBox ID="txtParentCode" runat="server" Wrap="False"></asp:TextBox>

  <asp:RequiredFieldValidator ID="reqParentCode" runat="server"

  ControlToValidate="txtParentCode"

  ErrorMessage="*"

  ValidationGroup="CreateUserWizard1">*</asp:RequiredFieldValidator>

  </td>

  </tr>

  <tr>

  <td align="right">

  &nbsp;</td>

  <td>

  &nbsp;</td>

  </tr>

  <tr>

  <td align="center" colspan="2">

  <asp:CompareValidator ID="PasswordCompare" runat="server"

  ControlToCompare="Password" ControlToValidate="ConfirmPassword"

  Display="Dynamic" ErrorMessage="<%$ Resources:MainResource, PassCompareValidator %>"

  ValidationGroup="CreateUserWizard1"></asp:CompareValidator>

  <asp:RegularExpressionValidator ID="EmailRegExValidator" runat="server" ErrorMessage="<%$ Resources:MainResource, EmailValidValidator %>" ValidationGroup="CreateUserWizard1" ControlToValidate="Email" ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>

  </td>

  </tr>

  <tr>

  <td align="center" colspan="2" style="color:Red;">

  <asp:Literal ID="ErrorMessage" runat="server" EnableViewState="False"></asp:Literal>

  </td>

  </tr>

  </table>

  </ContentTemplate>

  </asp:CreateUserWizardStep>

  <asp:CompleteWizardStep ID="CompleteWizardStep1" runat="server" Title="<%$ Resources:MainResource, RegistrationComplete %>" />

  </WizardSteps>

  </asp:CreateUserWizard>

   
  Any suggestion would be appreciated.

• Veselin Vasilev Veselin Vasilev

  Posted on Mar 11, 2010 (permalink)

  Hello Chanan Zass,
  
  To easiest way to find the combobox on the client when it is embedded in a templated control is to use its OnClientLoad event.
  
  Kind regards,
  Veskoni
  the Telerik team

  
  Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

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