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Flexible validation

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Products
Name:	1211
Quantity:
Price:	$1.00
Units:	12
Discontinued:
Name:	Frutas
Quantity:
Price:	$34.80
Units:	2223
Discontinued:
Name:	Vehiclesadasd
Quantity:
Price:	$45.00
Units:	45
Discontinued:
Name:	122
Quantity:
Price:	$22.00
Units:	10
Discontinued:
Name:	22
Quantity:
Price:
Units:	222
Discontinued:
FormValidationGroup
City:
State:
SearchValidationGroup
Enter criteria:
Demo Configurator
Allow multi-item edit
Validation Enabled
Choose validation groupNo group chosen
About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application
The following example demonstrates the validation mechanism(s) which can be used with the RadListVeiw control. The validation controls (required valiators/custom validators) are added to the related EditItemTemplate and InsertItemTemplate. Essentially, the example shows how to properly link the validation controls to the edit or insert controls of the RadListView control, as well as how to dynamically enable/disable the validation, or change the validation group.
<%@ Page Language="vb" AutoEventWireup="false" Inherits="Telerik.ListViewExamplesVBNet.DataEditing.FlexibleServersideValidation.DefaultVB"CodeFile="DefaultVB.aspx.vb"  %>

<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <div class="demo-container" id="demo-container">
        <telerik:RadFormDecorator RenderMode="Lightweight" ID="RadFormDecorator1" runat="server" DecoratedControls="All" EnableRoundedCorners="false" DecorationZoneID="demo-container" />
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
        </telerik:RadAjaxLoadingPanel>
        <telerik:RadAjaxPanel runat="server" ID="AjaxPanel1" LoadingPanelID="RadAjaxLoadingPanel1">
            <telerik:RadListView ID="RadListView1" RenderMode="Lightweight" DataSourceID="SqlDataSource1" runat="server"
                ItemPlaceholderID="ProductItemContainer" DataKeyNames="ProductID" AllowPaging="True">
                <ValidationSettings EnableValidation="true"></ValidationSettings>
                <LayoutTemplate>
                    <fieldset>
                        <legend>Products</legend>
                        <table class="layoutTable">
                            <tr>
                                <td class="button">
                                    <telerik:RadButton RenderMode="Lightweight" ID="Button1" runat="server" CommandName="InitInsert" Visible="<%# Not Container.IsItemInserted %>"
                                        Text="Add new product">
                                    </telerik:RadButton>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <asp:Panel ID="ProductItemContainer" runat="server">
                                    </asp:Panel>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <telerik:RadDataPager RenderMode="Lightweight" ID="RadDataPager1" runat="server" PagedControlID="RadListView1"
                                        PageSize="6">
                                        <Fields>
                                            <telerik:RadDataPagerButtonField FieldType="FirstPrev"></telerik:RadDataPagerButtonField>
                                            <telerik:RadDataPagerButtonField FieldType="Numeric"></telerik:RadDataPagerButtonField>
                                            <telerik:RadDataPagerButtonField FieldType="NextLast"></telerik:RadDataPagerButtonField>
                                        </Fields>
                                    </telerik:RadDataPager>
                                </td>
                            </tr>
                        </table>
                    </fieldset>
                </LayoutTemplate>
                <ItemTemplate>
                    <fieldset class="itemFieldset">
                        <table class="itemTable">
                            <tr>
                                <td class="cellLabel">Name:
                                </td>
                                <td class="cellInfo">
                                    <%# Eval("ProductName") %>
                                </td>
                            </tr>
                            <tr>
                                <td>Quantity:
                                </td>
                                <td class="cellInfo">
                                    <%# Eval("QuantityPerUnit") %>
                                </td>
                            </tr>
                            <tr>
                                <td>Price:
                                </td>
                                <td class="cellInfo">
                                    <%# Eval("UnitPrice", "{0:C}") %>
                                </td>
                            </tr>
                            <tr>
                                <td>Units:
                                </td>
                                <td class="cellInfo">
                                    <%# Eval("UnitsInStock") %>
                                </td>
                            </tr>
                            <tr>
                                <td>Discontinued:
                                </td>
                                <td class="cellInfo">
                                    <asp:CheckBox ID="CheckBox1" runat="server" Checked='<%# Eval("Discontinued") %>'
                                        Enabled="false"></asp:CheckBox>
                                </td>
                            </tr>
                            <tr>
                                <td colspan="2">
                                    <asp:ImageButton ID="Button1" runat="server" CommandName="Edit" CausesValidation="false"
                                        ImageUrl="~/ListView/Examples/DefiningStructure/DeclarativeDefinition/images/Edit.gif"></asp:ImageButton>&nbsp;
                                    <asp:ImageButton ID="Button2" runat="server" CommandName="Delete" ImageUrl="~/ListView/Examples/DefiningStructure/DeclarativeDefinition/images/Delete.gif"></asp:ImageButton>
                                </td>
                            </tr>
                        </table>
                    </fieldset>
                </ItemTemplate>
                <EditItemTemplate>
                    <fieldset class="itemFieldset">
                        <table class="itemTable">
                            <tr>
                                <td class="cellLabel">Name:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox1" runat="server" Text='<%# Bind("ProductName") %>' Width="100px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredField1" ControlToValidate="TextBox1"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Quantity:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox2" runat="server" Text='<%# Bind("QuantityPerUnit") %>' Width="100px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator2" ControlToValidate="TextBox2"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Price:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox3" runat="server" Text='<%# Bind("UnitPrice") %>' Width="65px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator3" ControlToValidate="TextBox3"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                    <asp:RangeValidator ID="RangeValidator1" runat="server" Type="Double" MinimumValue="0" MaximumValue="1000" ControlToValidate="TextBox3"
                                        ErrorMessage="Invalid" ForeColor="Red"></asp:RangeValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Units:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox4" runat="server" Text='<%# Bind("UnitsInStock") %>' Width="65px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator6" ControlToValidate="TextBox4"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                    <asp:CustomValidator runat="server" ID="CustomValidator1" ControlToValidate="TextBox4"
                                        OnServerValidate="CustomValidator1_ServerValidate" ForeColor="Red" ErrorMessage="Invalid"></asp:CustomValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Discontinued:
                                </td>
                                <td class="cellInfo">
                                    <asp:CheckBox ID="CheckBox1" runat="server" Checked='<%# Bind("Discontinued") %>'></asp:CheckBox>
                                </td>
                            </tr>
                            <tr>
                                <td colspan="2">
                                    <asp:ImageButton ID="Button1" runat="server" CommandName="Update" ImageUrl="~/ListView/Examples/DefiningStructure/DeclarativeDefinition/images/Update.gif"></asp:ImageButton>
                                    <asp:ImageButton ID="Button2" runat="server" CommandName="Cancel" CausesValidation="false"
                                        ImageUrl="~/ListView/Examples/DefiningStructure/DeclarativeDefinition/images/Cancel.gif"></asp:ImageButton>
                                </td>
                            </tr>
                        </table>
                    </fieldset>
                </EditItemTemplate>
                <InsertItemTemplate>
                    <fieldset class="itemFieldset">
                        <table class="itemTable">
                            <tr>
                                <td class="cellLabel">Name:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox1" runat="server" Text='<%# Bind("ProductName") %>' Width="100px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator1" ControlToValidate="TextBox1"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Quantity:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox2" runat="server" Text='<%# Bind("QuantityPerUnit") %>' Width="100px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator2" ControlToValidate="TextBox2"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Price:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox3" runat="server" Text='<%# Bind("UnitPrice") %>' Width="65px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator3" ControlToValidate="TextBox3"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                    <asp:RangeValidator ID="RangeValidator1" runat="server" Type="Double" MinimumValue="0" MaximumValue="1000" ControlToValidate="TextBox3"
                                        ErrorMessage="Invalid" ForeColor="Red"></asp:RangeValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Units:
                                </td>
                                <td class="cellInfo">
                                    <telerik:RadTextBox RenderMode="Lightweight" ID="TextBox4" runat="server" Text='<%# Bind("UnitsInStock") %>' Width="65px"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator ForeColor="Red" runat="server" ID="RequiredFieldValidator6" ControlToValidate="TextBox4"
                                        ErrorMessage="*"></asp:RequiredFieldValidator>
                                    <asp:CustomValidator runat="server" ID="CustomValidator1" ControlToValidate="TextBox4"
                                        OnServerValidate="CustomValidator1_ServerValidate" ForeColor="Red" ErrorMessage="Invalid"></asp:CustomValidator>
                                </td>
                            </tr>
                            <tr>
                                <td>Discontinued:
                                </td>
                                <td class="cellInfo">
                                    <asp:CheckBox ID="CheckBox1" runat="server" Checked='<%# Bind("Discontinued") %>'></asp:CheckBox>
                                </td>
                            </tr>
                            <tr>
                                <td colspan="2">
                                    <asp:ImageButton ID="Button1" runat="server" CommandName="PerformInsert" ImageUrl="~/ListView/Examples/DefiningStructure/DeclarativeDefinition/images/Update.gif"></asp:ImageButton>
                                    <asp:ImageButton ID="Button2" runat="server" CommandName="Cancel" CausesValidation="false"
                                        ImageUrl="~/ListView/Examples/DefiningStructure/DeclarativeDefinition/images/Cancel.gif"></asp:ImageButton>
                                </td>
                            </tr>
                        </table>
                    </fieldset>
                </InsertItemTemplate>
            </telerik:RadListView>
            <div class="divValidation">
                <table class="validationTable">
                    <tr>
                        <td class="validationCell">
                            <fieldset class="fieldset">
                                <legend>FormValidationGroup</legend>
                                <div class="divCity">
                                    <asp:Label Text="City:" ID="lblCity" AssociatedControlID="city" runat="server" />
                                    <telerik:RadTextBox RenderMode="Lightweight" runat="server" ID="city"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator runat="server" ID="RequiredFieldValidator4" ControlToValidate="city"
                                        Display="Dynamic" ForeColor="Red" ErrorMessage="City is required" ValidationGroup="FormValidationGroup"
                                        Style="margin-left: 14px;"></asp:RequiredFieldValidator>
                                </div>
                                <div class="divState">
                                    <asp:Label Text="State:" ID="lblState" AssociatedControlID="state" runat="server" />
                                    <telerik:RadTextBox RenderMode="Lightweight" runat="server" ID="state"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator runat="server" ID="RequiredFieldValidator5" ControlToValidate="state"
                                        Display="Dynamic" ForeColor="Red" ErrorMessage="State is required" ValidationGroup="FormValidationGroup"
                                        Style="margin-left: 5px;"></asp:RequiredFieldValidator>
                                </div>
                                <telerik:RadButton RenderMode="Lightweight" CausesValidation="true" runat="server" ID="Button1" Text="PostBack" ValidationGroup="FormValidationGroup"></telerik:RadButton>
                            </fieldset>
                        </td>
                        <td class="validationCell">
                            <fieldset class="fieldset">
                                <legend>SearchValidationGroup</legend>
                                <div class="searchDiv">
                                    <asp:Label Text="Enter criteria:" ID="lblName" AssociatedControlID="name" runat="server" />
                                    <telerik:RadTextBox RenderMode="Lightweight" runat="server" ID="name"></telerik:RadTextBox>
                                    <asp:RequiredFieldValidator runat="server" ID="RequiredFieldValidator3" ControlToValidate="name"
                                        Display="Dynamic" ForeColor="Red" ErrorMessage="Criteria is required" ValidationGroup="SearchValidationGroup"></asp:RequiredFieldValidator>
                                </div>
                                <telerik:RadButton RenderMode="Lightweight" ID="btnSearch" runat="server" Text="PostBack" ValidationGroup="SearchValidationGroup"></telerik:RadButton>
                            </fieldset>
                        </td>
                    </tr>
                </table>
            </div>
        </telerik:RadAjaxPanel>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString35 %>"
            DeleteCommand="DELETE FROM [Products] WHERE [ProductID] = @ProductID" InsertCommand="INSERT INTO [Products] ([ProductName], [SupplierID], [CategoryID], [QuantityPerUnit], [UnitPrice], [UnitsInStock], [UnitsOnOrder], [ReorderLevel], [Discontinued]) VALUES (@ProductName, @SupplierID, @CategoryID, @QuantityPerUnit, @UnitPrice, @UnitsInStock, @UnitsOnOrder, @ReorderLevel, @Discontinued)"
            SelectCommand="SELECT * FROM [Products]" UpdateCommand="UPDATE [Products] SET [ProductName] = @ProductName, [SupplierID] = @SupplierID, [CategoryID] = @CategoryID, [QuantityPerUnit] = @QuantityPerUnit, [UnitPrice] = @UnitPrice, [UnitsInStock] = @UnitsInStock, [UnitsOnOrder] = @UnitsOnOrder, [ReorderLevel] = @ReorderLevel, [Discontinued] = @Discontinued WHERE [ProductID] = @ProductID">
            <DeleteParameters>
                <asp:Parameter Name="ProductID" Type="Int32"></asp:Parameter>
            </DeleteParameters>
            <UpdateParameters>
                <asp:Parameter Name="ProductName" Type="String"></asp:Parameter>
                <asp:Parameter Name="SupplierID" Type="Int32"></asp:Parameter>
                <asp:Parameter Name="CategoryID" Type="Int32"></asp:Parameter>
                <asp:Parameter Name="QuantityPerUnit" Type="String"></asp:Parameter>
                <asp:Parameter Name="UnitPrice" Type="Decimal"></asp:Parameter>
                <asp:Parameter Name="UnitsInStock" Type="Int16"></asp:Parameter>
                <asp:Parameter Name="UnitsOnOrder" Type="Int16"></asp:Parameter>
                <asp:Parameter Name="ReorderLevel" Type="Int16"></asp:Parameter>
                <asp:Parameter Name="Discontinued" Type="Boolean"></asp:Parameter>
                <asp:Parameter Name="ProductID" Type="Int32"></asp:Parameter>
            </UpdateParameters>
            <InsertParameters>
                <asp:Parameter Name="ProductName" Type="String"></asp:Parameter>
                <asp:Parameter Name="SupplierID" Type="Int32"></asp:Parameter>
                <asp:Parameter Name="CategoryID" Type="Int32"></asp:Parameter>
                <asp:Parameter Name="QuantityPerUnit" Type="String"></asp:Parameter>
                <asp:Parameter Name="UnitPrice" Type="Decimal"></asp:Parameter>
                <asp:Parameter Name="UnitsInStock" Type="Int16"></asp:Parameter>
                <asp:Parameter Name="UnitsOnOrder" Type="Int16"></asp:Parameter>
                <asp:Parameter Name="ReorderLevel" Type="Int16"></asp:Parameter>
                <asp:Parameter Name="Discontinued" Type="Boolean"></asp:Parameter>
            </InsertParameters>
        </asp:SqlDataSource>
    </div>
    <qsf:ConfiguratorPanel ID="ConfiguratorPanel" runat="server" Expanded="true">
        <Views>
            <qsf:View>
                <qsf:ConfiguratorColumn ID="ConfiguratorColumn1" runat="server" Size="Narrow">
                    <asp:CheckBox ID="CheckBox1" Text="Allow multi-item edit"
                        AutoPostBack="True" runat="server" OnCheckedChanged="CheckBox1_CheckedChanged"></asp:CheckBox>
                    <br />
                    <asp:CheckBox ID="CheckBox2" AutoPostBack="True" Text="Validation Enabled"
                        runat="server" Checked="True" OnCheckedChanged="CheckBox2_CheckedChanged"></asp:CheckBox>
                </qsf:ConfiguratorColumn>
                <qsf:ConfiguratorColumn ID="ConfiguratorColumn2" runat="server" Size="Narrow">
                    <qsf:DropDownList ID="DropDownList1" runat="server" Label="Choose validation group" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
                        <Items>
                            <telerik:DropDownListItem Text="No group chosen" Value="NoGroup" Selected="true" />
                            <telerik:DropDownListItem Text="FormValidationGroup" Value="FormGroup" />
                            <telerik:DropDownListItem Text="SearchValidationGroup" Value="SearchGroup" />
                        </Items>
                    </qsf:DropDownList>
                </qsf:ConfiguratorColumn>
            </qsf:View>
        </Views>
    </qsf:ConfiguratorPanel>
    </form>
</body>
</html>
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