Required Field Validator for Gridveiw

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Hi, I have Gridveiw which has 7 Columns and out of that 3 columns are drop down list

My Requirement--> I need to validate this 3 Columns before updating the row or during adding the new rows.

All the 3 columns are interrelated if you select the first column(Test/window frame) the values get populated in the second column(Test Object)and based on the second column the 3rd column(Test Object) gets populated , but now the problem is after populating all the columns(i.e all the 3 columns) user can go back and change the 2nd column back to "--Select--" and can update I need to prevent this from happening so how do i validate all the columns.

Below is the code

ASP.NET

<asp:GridView ID="gvTestScriptComponent" runat="Server" CssClass="GridViewStyle" AutoGenerateColumns="False"
            CellPadding="4" ForeColor="Black" DataKeyNames="ComponentID"
            ShowFooter="true" Height="110px" Style="margin-right: 0px" Width="990px" BackColor="White"
            OnRowDataBound="gvTestScriptComponent_RowDataBound" AutoGenerateEditButton="True"
            OnRowEditing="gvTestScriptComponent_RowEditing" OnRowCancelingEdit="gvTestScriptComponent_RowCancelingEdit"
            OnRowUpdating="gvTestScriptComponent_RowUpdating" OnRowDeleted="gvTestScriptComponent_RowDeleted"
            BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" 
            OnRowCommand="gvTestScriptComponent_RowCommand">
            <Columns>
                <asp:TemplateField HeaderText="ComponentID" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblComponentID" runat="server" Height="20px" Text='<%#Eval("ComponentID")%>'>  </asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Center"></ItemStyle>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Options" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:ImageButton ID="btnDelete" runat="server" ImageUrl="images/delete.ico" CausesValidation="false"
                            CommandName="DeleteRow" OnClick="btnDelete_Click"  OnClientClick='return confirm("Are you sure you want to delete?");'  />
                    </ItemTemplate>
                    <FooterTemplate>
                        <asp:ImageButton ID="btnSave" runat="server" ImageUrl="images/save.ico" CausesValidation="false"
                            CommandName="SaveRow" OnClick="btnSave_Click" />
                    </FooterTemplate>
                    <ItemStyle HorizontalAlign="Center"></ItemStyle>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="TestWindow/Frame Name" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblTestWindow" runat="server" Height="20px" Text='<%#Eval("BrowserPage")%>'>  </asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Left"></ItemStyle>
                    <EditItemTemplate>
                        <asp:DropDownList ID="ddlTestWindow" runat="server" Visible="true" AutoPostBack="True"
                            OnSelectedIndexChanged="ddlTestWindow_SelectedIndexChanged">
                        </asp:DropDownList>
                    </EditItemTemplate>
                    <FooterTemplate>
                        <asp:DropDownList ID="ddlFooterTestWindow" runat="server" Visible="true" AutoPostBack="True"
                            OnSelectedIndexChanged="ddlFooterTestWindow_SelectedIndexChanged">
                        </asp:DropDownList>
                    </FooterTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Test Object" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblTestObject" runat="server" Height="20px" Text='<%#Eval("ObjectName")%>'>  </asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Left"></ItemStyle>
                    <EditItemTemplate>
                        <asp:DropDownList ID="ddlTestObject" runat="server" Visible="true" AutoPostBack="True"
                            OnSelectedIndexChanged="ddlTestObject_SelectedIndexChanged" >
                        </asp:DropDownList>
                    </EditItemTemplate>
                    <FooterTemplate>
                        <asp:DropDownList ID="ddlFooterTestObject" runat="server" Visible="true" AutoPostBack="True"
                            OnSelectedIndexChanged="ddlFooterTestObject_SelectedIndexChanged">
                        </asp:DropDownList>
                    </FooterTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Test Operation" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblTestOperation" runat="server" Height="20px" Text='<%#Eval("Action")%>'></asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Left"></ItemStyle>
                    <EditItemTemplate>
                        <asp:DropDownList ID="ddlTestOperation" runat="server" Visible="true">
                        </asp:DropDownList>
                    </EditItemTemplate>
                    <FooterTemplate>
                        <asp:DropDownList ID="ddlFooterTestOperation" runat="server" Visible="true">
                        </asp:DropDownList>
                    </FooterTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Test Data" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblTestData" runat="server" Height="20px" Text='<%#Eval("TestData")%>'></asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Left"></ItemStyle>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtTestData" runat="server" Text='<%# Bind("TestData") %>' Visible="true">
                        </asp:TextBox>
                    </EditItemTemplate>
                    <FooterTemplate>
                        <asp:TextBox ID="txtFooterTestData" runat="server" Visible="true"></asp:TextBox>
                    </FooterTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Reusable‎OutputData" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblReUseableOutputData" runat="server" Height="20px" Text='<%#Eval("ReUsableOutputData")%>'></asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Left"></ItemStyle>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtReUseableOutputData" runat="server" Text='<%# Bind("ReUsableOutputData") %>'
                            Visible="true">
                        </asp:TextBox>
                    </EditItemTemplate>
                    <FooterTemplate>
                        <asp:TextBox ID="txtFooterReUseableOutputData" runat="server" Visible="true"></asp:TextBox>
                    </FooterTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Step Description" ItemStyle-HorizontalAlign="Center">
                    <ItemTemplate>
                        <asp:Label ID="lblStepDescription" runat="server" Height="20px" Text='<%#Eval("Steps")%>'></asp:Label>
                    </ItemTemplate>
                    <ItemStyle HorizontalAlign="Left"></ItemStyle>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtStepDescription" runat="server" Text='<%# Bind("Steps") %>' Visible="true">
                        </asp:TextBox>
                    </EditItemTemplate>
                    <FooterTemplate>
                        <asp:TextBox ID="txtFooterStepDescription" runat="server" Visible="true"></asp:TextBox>
                    </FooterTemplate>
                </asp:TemplateField>
            </Columns>
            <FooterStyle BackColor="#CCCC99" ForeColor="Black" />
            <PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
            <SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
            <HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" HorizontalAlign="Justify"
                VerticalAlign="Middle" />
            <SortedAscendingCellStyle BackColor="#F7F7F7" />
            <SortedAscendingHeaderStyle BackColor="#4B4B4B" />
            <SortedDescendingCellStyle BackColor="#E5E5E5" />
            <SortedDescendingHeaderStyle BackColor="#242121" />
            <EmptyDataTemplate>
                <table>
                    <tr style="background-color: #999999;">
                        <th>
                            Option
                        </th>
                        <th>
                            Test Window
                        </th>
                        <th>
                            Test Object
                        </th>
                        <th>
                            Test Operation
                        </th>
                        <th>
                            Test Data
                        </th>
                        <th>
                            ReUseableOutputData
                        </th>
                        <th>
                            StepDescription
                        </th>
                    </tr>
                    <tr>
                        <td headers="Option">
                            <asp:ImageButton ID="btnSave" runat="server" ImageUrl="images/save.ico" CausesValidation="false"
                                CommandName="FirstSaveRow" OnClick="btnSave_Click" />
                        </td>
                        <td headers="Test Window">
                            <asp:DropDownList ID="ddlFooterTestWindow" runat="server" Visible="true" AutoPostBack="True"
                                OnSelectedIndexChanged="ddlFooterTestWindow_SelectedIndexChanged">
                            </asp:DropDownList>
                        </td>
                        <td headers="Test Object">
                            <asp:DropDownList ID="ddlFooterTestObject" runat="server" Visible="true" AutoPostBack="True"
                                OnSelectedIndexChanged="ddlFooterTestObject_SelectedIndexChanged">
                            </asp:DropDownList>
                        </td>
                        <td headers="Test Operation">
                            <asp:DropDownList ID="ddlFooterTestOperation" runat="server" Visible="true">
                            </asp:DropDownList>
                        </td>
                        <td headers="Test Data">
                            <asp:TextBox ID="txtFooterTestData" runat="server" Visible="true"></asp:TextBox>
                        </td>
                        <td headers="ReUseableOutputData">
                            <asp:TextBox ID="txtFooterReUseableOutputData" runat="server" Visible="true"></asp:TextBox>
                        </td>
                        <td headers="StepDescription">
                            <asp:TextBox ID="txtFooterStepDescription" runat="server" Visible="true"></asp:TextBox>
                        </td>
                    </tr>
                </table>
            </EmptyDataTemplate>
        </asp:GridView>

Posted 13-Jan-14 17:59pm

ShaHam11

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TrushnaK · Answer 1 · 2014-01-13T18:14:00

refer below links:-
http://stackoverflow.com/questions/19131992/how-to-place-a-required-field-validator-inside-a-gridview-textbox[^]
http://stackoverflow.com/questions/5775856/textbox-inside-gridview-validation[^]
http://www.aspsnippets.com/Articles/Using-ASPNet-RequiredFieldValidator-for-TextBox-inside-GridView-TemplateField-ItemTemplate.aspx[^]

Gitanjali Singh · Answer 2 · 2014-01-13T18:11:00

Add RequiredFieldValidator for dropdownlist.

C#

<asp:DropDownList ID="DropDownList1" runat="server" Width="100px">asp:DropDownList>

<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="DropDownList1" Display="dynamic"
ErrorMessage="Please Select the Rating" InitialValue="Select Rating">asp:RequiredFieldValidator>

Refer:Validate dropdownlist inside gridview[^]

This may help.

Required Field Validator for Gridveiw

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