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Changing an edit control on an autopopulated RADGrid

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Marcus
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Marcus asked on 20 Jun 2013, 11:44 AM
I am looking to change the default edit control (the textbox) in a cell of autopopulated RadGrid to a RADDropDownList.  Is there a way to do this and if so, under what event would it be placed?

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Jayesh Goyani
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answered on 20 Jun 2013, 12:36 PM
Hello,

<Columns>
                <telerik:GridTemplateColumn DataField="Name" UniqueName="Name">
                    <ItemTemplate>
                        '<%# Eval("Name") %>'
                    </ItemTemplate>
                    <EditItemTemplate>
                        <telerik:RadDropDownList ID="RadDropDownList1" runat="server">
                        </telerik:RadDropDownList>
                    </EditItemTemplate>
                </telerik:GridTemplateColumn>
            </Columns>

OR

<Columns>
                <telerik:GridDropDownColumn></telerik:GridDropDownColumn>
            </Columns>

Please check below link for more info.
Grid - Column Types

Thanks.
Jayesh Goyani
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Marcus
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answered on 20 Jun 2013, 01:06 PM
Jayesh,
Thanks for getting back to me so quick, I appreciate it.  I've been trying to do this in the code behind and haven't been getting anywhere with it.  Below is the code that I am using (with your modification) and it makes good sense.  The only trouble I am having is that the IDE is complaining about the EVAL that looks for the column from the datatable.  It says Code Blocks are not supported in this context.  I've tried it with the single quotes and without the single quotes and get the same result.  I added the table format to see if I could make it accept it, but no change there either.

Any suggestions?
<telerik:RadGrid ID="rgForecasts" runat="server" AllowPaging="True" AllowSorting="True"
    CellSpacing="1" GridLines="None" AutoGenerateEditColumn="True"
    BorderStyle="Solid" BorderWidth="2px" CellPadding="1">
    <ExportSettings ExportOnlyData="True" IgnorePaging="True">
    </ExportSettings>
    <MasterTableView EditMode="InPlace" AllowFilteringByColumn="True"
        ShowFooter="True" CommandItemDisplay="TopAndBottom">
        <CommandItemSettings ExportToPdfText="Export to PDF" ShowExportToExcelButton="True"
            ShowExportToPdfButton="True" ShowExportToWordButton="True" />
        <RowIndicatorColumn FilterControlAltText="Filter RowIndicator column" Visible="True">
            <HeaderStyle Width="20px" />
        </RowIndicatorColumn>
        <ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column" Visible="True">
            <HeaderStyle Width="20px" />
        </ExpandCollapseColumn>
        <Columns>
            <telerik:GridTemplateColumnDataField="ForecastStatus"UniqueName="ForecastStatus">
                <ItemTemplate>
                    <table cellspacing="0" width="100%" class="myTable">
                        <tr>
                            <td>
                            <%# Eval("ForecastStatus") %>
                            </td>
                        </tr>
                    </table>
                </ItemTemplate>
                <EditItemTemplate>
                    <telerik:RadDropDownListID="rddlForecastStatus"runat="server">
                    </telerik:RadDropDownList>
                </EditItemTemplate>
            </telerik:GridTemplateColumn>
        </Columns>
       <EditFormSettings>
            <EditColumn FilterControlAltText="Filter EditCommandColumn column" />
        </EditFormSettings>
        <PagerStyle PageSizeControlType="RadComboBox" />
    </MasterTableView>
    <PagerStyle PageSizeControlType="RadComboBox" PageButtonCount="20" PageSizes="10;20;30;50;100"
        Position="TopAndBottom"></PagerStyle>
    <FilterMenu EnableImageSprites="False">
    </FilterMenu>
</telerik:RadGrid>
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Shinu
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answered on 20 Jun 2013, 01:25 PM
Hi Marcus,

I have tried to replicate your code,it was the issue of not having proper spacing.
Here is the code snippet.

ASPX:
<telerik:GridTemplateColumn DataField="ForecastStatus" UniqueName="ForecastStatus">
              <ItemTemplate>
                  <table cellspacing="0" width="100%" class="myTable">
                      <tr>
                          <td>
                          <%# Eval("ForecastStatus") %>
                          </td>
                      </tr>
                  </table>
              </ItemTemplate>
      <EditItemTemplate>
       <telerik:RadDropDownList ID="rddlForecastStatus" runat="server">
      </telerik:RadDropDownList>
    </EditItemTemplate>
</telerik:GridTemplateColumn>

Thanks,
Shinu
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Marcus
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answered on 20 Jun 2013, 01:38 PM
Thanks Shinu, that got it.  I removed the table as being superfluous and just complicated the code.   But a question for you or Jayesh (or anyone else for that matter), to fill the RadDropDownList List, would this be done during the RadGrid ItemDataBound event or in another event and should I use the .FindControl method to get a reference to the RadDropDownList?
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Jayesh Goyani
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answered on 21 Jun 2013, 06:19 AM

Hello,

You can also access the "RadDropDownList" in itemCreated,GridPrender, PagePrender.


But The ItemDataBound event is the best to bind RadDropDownList. Because in this event we are able to access whole row with data. (Advantages : 1. it is also help to give good performance compare to PagrPrender and GridPrerender event, 2. In ItemCreated event we are not able to access row data)


Thanks,
Jayesh Goyani
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Marcus
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Jayesh Goyani
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Marcus
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Shinu
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