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Get item from EditFormSettings FormTemplate

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Davyd
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Davyd asked on 23 Jul 2014, 11:30 AM
Hi. I try get item from edit form template, when edit button pressed, to change some of their values.
But I always receive null.
My code:

<telerik:RadGrid ID="RadGrid1" runat="server" AllowSorting="True"
    DataSourceID="sqlDataFeedGrid" GridLines="Both" AllowPaging="True"
    AllowAutomaticUpdates="True" AllowAutomaticInserts="True" AllowAutomaticDeletes="True"
    OnInsertCommand="RadGrid1_InsertCommand"
    OnEditCommand="RadGrid1_EditCommand"
    OnPreRender="RadGrid1_PreRender" OnUpdateCommand="RadGrid1_UpdateCommand">
    <PagerStyle Mode="NextPrevAndNumeric" />
    <MasterTableView DataSourceID="sqlDataFeedGrid" AutoGenerateColumns="False"
        DataKeyNames="Id" CommandItemDisplay="Top">
        <Columns>
            <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn" />
            <telerik:GridBoundColumn DataField="Id" HeaderText="Datafeed ID" SortExpression="Id" UniqueName="Id" Visible="False" MaxLength="10" />
            <telerik:GridBoundColumn DataField="IPAddress" DataType="System.String" HeaderText="IP Address" SortExpression="IPAddress" UniqueName="IPAddress" />
            <telerik:GridBoundColumn DataField="Name" DataType="System.String" HeaderText="Name" SortExpression="Name" UniqueName="Name" />
            <telerik:GridBoundColumn DataField="Status" DataType="System.String" HeaderText="Status" SortExpression="Status" UniqueName="Status" />
            <telerik:GridBoundColumn DataField="Configs" DataType="System.Guid" HeaderText="Configs" SortExpression="Configs" UniqueName="Configs" />
            <telerik:GridBoundColumn DataField="Logs" DataType="System.String" HeaderText="Logs" SortExpression="Logs" UniqueName="Logs" />
            <telerik:GridBoundColumn DataField="setupInstruction" DataType="System.Guid" HeaderText="Install Instruction" SortExpression="setupInstruction" UniqueName="setupInstruction" />
            <telerik:GridBoundColumn DataField="execInstruction" DataType="System.Guid" HeaderText="Execute Instruction" SortExpression="execInstruction" UniqueName="execInstruction" />
            <telerik:GridBoundColumn DataField="Description" DataType="System.String" HeaderText="Description" SortExpression="Description" UniqueName="Description" />
            <telerik:GridButtonColumn Text="Delete" CommandName="Delete" ButtonType="ImageButton" />
        </Columns>
        <EditFormSettings EditFormType="Template">
            <EditColumn UniqueName="EditColumn"></EditColumn>
            <FormTemplate>
                <table cellspacing="2" cellpadding="1" width="100%" border="0"
                    rules="none" style="border-collapse: collapse;">
                    <tr class="EditFormHeader">
                        <td colspan="2" style="font-size: small">
                            <b>Datafeed Details</b>
                        </td>
                    </tr>
 
                    <tr>
                        <td></td>
                        <td></td>
                    </tr>
                    <tr>
                        <td>ID</td>
                        <td>
                            <asp:TextBox ID="txtId" runat="server" ValidationGroup="Datafeed" ReadOnly="true" Text='<%# Bind("Id") %>' />
                        </td>
                    </tr>
                    <tr>
                        <td>IP Address
                        </td>
                        <td>
                            <asp:DropDownList ID="ddlMachineId" EnableViewState="true" AutoPostBack="true"
                                runat="server" DataSourceID="sqlMachineId" DataTextField="IPAddress"
                                DataValueField="ID" OnSelectedIndexChanged="ddlMachineId_IndexChange" />
                            <asp:Label ID="lblHostingName" runat="server"></asp:Label>
                        </td>
                    </tr>
                    <tr>
                        <td>Data Agent</td>
                        <td>
                            <asp:DropDownList ID="ddlDataAgentID" runat="server" DataSourceID="sqlDataAgentId" DataTextField="Name" DataValueField="ID">
                            </asp:DropDownList><asp:Button ID="addAgent" runat="server" Text="Add" Width="55px" OnClick="addAgent_Click" />
                            <asp:ListBox ID="agentsList" runat="server" Height="91px" Width="194px"></asp:ListBox>
                        </td>
                    </tr>
                    <tr>
                        <td>Datafeed Name</td>
                        <td>
                            <asp:TextBox ID="txtName" runat="server" ValidationGroup="Datafeed" Text='<%# Bind("Name") %>' />
                        </td>
                    </tr>
                    <tr>
                        <td>Status</td>
                        <td>
                            <asp:TextBox ID="txtStatus" runat="server" ValidationGroup="Datafeed" Text='<%# Bind("Status") %>'></asp:TextBox>
                        </td>
                    </tr>
                    <tr>
                        <td>Config File</td>
                        <td>
                            <asp:FileUpload runat="server" ID="configFile" Width="229px" />  <asp:HyperLink runat="server" ID="confResult" Target="_blank" />
                        </td>
                    </tr>
                    <tr>
                        <td>Logs Path</td>
                        <td>
                            <asp:TextBox ID="txtLogs" runat="server" ValidationGroup="Datafeed" Text='<%# Bind("Logs") %>'></asp:TextBox>
                        </td>
                    </tr>
                    <tr>
                        <td>Install Instruction</td>
                        <td>
                            <asp:FileUpload runat="server" ID="setupFile" Width="229px" />  <asp:HyperLink runat="server" ID="setupResult" Target="_blank" />
                        </td>
                    </tr>
                    <tr>
                        <td>Execute Instruction</td>
                        <td>
                            <asp:FileUpload runat="server" ID="execFile" Width="229px" />  <asp:HyperLink runat="server" ID="execResult" Target="_blank" />
                        </td>
                    </tr>
                    <tr>
                        <td>Description</td>
                        <td>
                            <asp:TextBox ID="txtDescription" runat="server" ValidationGroup="Datafeed" TextMode="MultiLine" Height="58px" Width="303px" Text='<%# Bind("Description") %>'></asp:TextBox>
                        </td>
                    </tr>
                </table>
                <asp:Button runat="server" ID="btnUpdate" Text='<%#(Container is GridEditFormInsertItem) ? "Insert":"Update" %>'
                    CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert":"Update" %>' /> 
                            <asp:Button runat="server" ID="btnCancel" Text="Cancel" CausesValidation="False" CommandName="Cancel" />
            </FormTemplate>
        </EditFormSettings>
    </MasterTableView>
    <ClientSettings>
        <ClientEvents OnRowDblClick="RowDblClick"></ClientEvents>
    </ClientSettings>
</telerik:RadGrid>

protected void RadGrid1_EditCommand(object sender, GridCommandEventArgs e)
        {
            if (e.CommandName != RadGrid.EditCommandName) return;
            GridDataItem gridDataItem = e.Item as GridDataItem;
             
            var ddlMachineId = gridDataItem.FindControl("ddlMachineId") as DropDownList;
            var ddlDataAgentID = gridDataItem.FindControl("ddlDataAgentID") as DropDownList;
            var agentsList = gridDataItem.FindControl("agentsList") as ListBox;
            var confResult = gridDataItem.FindControl("confResult") as HyperLink;
            var execResult = gridDataItem.FindControl("execResult") as HyperLink;
            var setupResult = gridDataItem.FindControl("setupResult") as HyperLink;
}

gridDataItem.FindControl return null for all my ids.
Please help.

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Princy
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answered on 23 Jul 2014, 12:24 PM
Hi Davyd,

You can use the ItemDataBound event to get the controls in edit form, the EditCommand event is too early to get the controls. Please try the following approach to access controls in edit mode.

C#:
protected void rgrdSample_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item is GridEditableItem && e.Item.IsInEditMode)
    {
        GridEditableItem editItem = (GridEditableItem)e.Item;
        //Accessing TextBox in editform
        TextBox txtId = (TextBox)editItem.FindControl("txtId");
    }
}

Thanks,
Princy
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Davyd
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