asked on

Need to rename Grid column names in a Dynamic Data website

I have created a table which maps column names to the display names we want Dynamic Data to show. And I have succeeded in a few cases, like the Details page, getting the display name inserted and shown by Dynamic Data. But when it comes to the List.aspx page, the Label_PreRender() event only deals with relations, and does not fire when a column is being created.

Can anyone give me some advice? This page inherits from System.Web.UI.Page, and I need to find how to overwrite the column names.

Thanks,
newbieweb

SAMIR BHOGAYTA

Hi,

Protected Sub GridView1_RowCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowCreated
If e.Row.RowType = DataControlRowType.Header Then
e.Row.Cells(1).Text = “Show me the money”
End If
End Sub

curiouswebster

ASKER

I do C#, but any time I have tried to change the DisplayName I have found them to be read only. I will try to decifer what you'd described...

curiouswebster

ASKER

I found the GridView1_RowCreated() event and added the code in C#, but it does not stop at a breakpoint in that event. I need an event that will fire each and every time the Grid is populated. Do you know that one?

newbieweb

Nathan Bove

If you are looking for an event that will fire every time there is a postback, the Gridview PreRender should do the trick.

curiouswebster

ASKER

I think I found the problem:

<asp:Label runat="server" Text='<%# Eval("DisplayName") %>' OnPreRender="Label_PreRender" />

What does this line tell you about what inside of Label_PreRender that I need to change with the correct display name?

Nathan Bove

Ahh, I see what you are saying.

Try adding this to code to your "Label_PreRender" event handler:

protected void Label_PreRender(object sender, EventArgs e) {
Label lbl = (Label)sender;
lbl.Text = "New Display Name";
}

curiouswebster

ASKER

I had been doing so successfully, but only in pages inheriting from:
System.Web.DynamicData.EntityTemplateUserControl

When I inherit from System.Web.UI.Page I can not do the above, since there is no Label_PreRender event.

I am stumped!

newbieweb

Nathan Bove

Hmm, perhaps I am not understanding the nature of the problem. If there is not an event handler, then simply add the event handler.

curiouswebster

ASKER

How do I associate the Label_PreRender event with the label? I see no label in the entire page.

<asp:Content ID="headContent" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:DynamicDataManager ID="DynamicDataManager1" runat="server" AutoLoadForeignKeys="true">
        <DataControls>
            <asp:DataControlReference ControlID="FormView1" />
        </DataControls>
    </asp:DynamicDataManager>

    <h2 class="DDSubHeader">Entry from table <%= /*table.DisplayName*/ Title %></h2>

    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:ValidationSummary ID="ValidationSummary1" runat="server" EnableClientScript="true"
                HeaderText="List of validation errors" CssClass="DDValidator" />
            <asp:DynamicValidator runat="server" ID="DetailsViewValidator" ControlToValidate="FormView1" Display="None" CssClass="DDValidator" />

            <asp:FormView runat="server" ID="FormView1" DataSourceID="DetailsDataSource" OnItemDeleted="FormView1_ItemDeleted" RenderOuterTable="false">
                <ItemTemplate>
                    <table id="detailsTable" class="DDDetailsTable" cellpadding="6">
                        <asp:DynamicEntity runat="server" />
                        <tr class="td">
                            <td colspan="2">
                                <asp:DynamicHyperLink runat="server" Action="Edit" Text="Edit" />
                                <asp:LinkButton runat="server" CommandName="Delete" Text="Delete"
                                    OnClientClick='return confirm("Are you sure you want to delete this item?");' />
                            </td>
                        </tr>
                    </table>
                </ItemTemplate>
                <EmptyDataTemplate>
                    <div class="DDNoItem">No such item.</div>
                </EmptyDataTemplate>
            </asp:FormView>

            <asp:EntityDataSource ID="DetailsDataSource" runat="server" EnableDelete="true" />

            <asp:QueryExtender TargetControlID="DetailsDataSource" ID="DetailsQueryExtender" runat="server">
                <asp:DynamicRouteExpression />
            </asp:QueryExtender>

            <br />

            <div class="DDBottomHyperLink">
                <asp:DynamicHyperLink ID="ListHyperLink" runat="server" Action="List">Show all items</asp:DynamicHyperLink>
            </div>
        </ContentTemplate>
    </asp:UpdatePanel>
</asp:Content>

Open in new window

ASKER CERTIFIED SOLUTION

Nathan Bove

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

curiouswebster

ASKER

Thanks!