Design Time Rendering User Control?

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Bill Cohagan - 21 Jul 2006 22:14 GMT

I've created a user control (not a custom control) consisting of a table
with a single row containing three cells, each cell containing a button.
Following is the code for this user control.

<%@ Control Language="C#" AutoEventWireup="true"
CodeFile="NewEditDeleteButtons.ascx.cs"
Inherits="UserControls_NewEditDeleteButtons" %>
<%@ Register TagPrefix="ctrl" Namespace="IDWeb.Web.Control"
Assembly="IDWeb.Web" %>
<asp:Table ID="AEDBTable" runat="server">
<asp:TableRow runat="server">
<asp:TableCell ID="TableCell26" runat="server" CssClass="data">
<ctrl:Button ID="btnNew" runat="server" Text="+"
OnClick="btnNew_Click"/>
</asp:TableCell>
<asp:TableCell ID="TableCell1" runat="server" CssClass="data">
<ctrl:Button ID="btnEdit" runat="server" Text="e"
OnClick="btnEdit_Click"/>
</asp:TableCell>
<asp:TableCell ID="TableCell27" runat="server" CssClass="data">
<ctrl:Button ID="btnDelete" runat="server" Text="X"
OnClick="btnDelete_Click"/>
</asp:TableCell>
</asp:TableRow>
</asp:Table>

This user control works fine at runtime and renders as expected. In design
view however the page containing the NewEditDeleteButtons tag doesn't show
anything for this control. Is there a way I can get it to render in the
designer?

TIA,
Bill Cohagan

Reply to this Message

Riki - 22 Jul 2006 11:54 GMT

> I've created a user control (not a custom control) consisting of a
> table with a single row containing three cells, each cell containing
[quoted text clipped - 29 lines]
> TIA,
> Bill Cohagan

I'm suspecting the custom button controls that you're using.

Try replacing the custom buttons with standard buttons, and see if that
helps.

Signature

Riki

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Bill Cohagan - 22 Jul 2006 18:15 GMT

Riki
Thank, but I already tried that. Should have mentioned that in my
posting. FWIW, the custom button (at this point) is trivial anyway:

namespace IDWeb.Web.Control
{
public class Button : System.Web.UI.WebControls.Button
{
public Button()
{
}
}
}

>> I've created a user control (not a custom control) consisting of a
>> table with a single row containing three cells, each cell containing
[quoted text clipped - 34 lines]
> Try replacing the custom buttons with standard buttons, and see if that
> helps.

Reply to this Message

Walter Wang [MSFT] - 24 Jul 2006 12:21 GMT

Hi Bill,

Thank you for your post.

Depending on which ASP.NET version you are using, the answer to your
question varies:

1) If you are using ASP.NET 1.1, the UserControl's design-time rendering is
very limited and the behavior you're experiencing is expected.

2) If you are using ASP.NET 2.0, the UserControl's design-time rendering
should reflect the controls it's using. However, if the custom control
(IDWeb.Web.Control.Button) is placed under the website's App_Code folder,
due to ASP.NET 2.0 compilation model, it will show the custom control on
UserControl successfully, but will not show correctly if the UserControl is
used in WebForm or another UserControl again. You need to place the custom
control in a separate Class Library to get correct design-time rendering.

Hope this helps. Please feel free to post here if anything is unclear.

Regards,
Walter Wang (wawang@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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Reply to this Message

Bill Cohagan - 25 Jul 2006 15:34 GMT

Walter
Thanks for the suggestions; however the button custom control is already
in a dll. I'm using ASP.Net 2.0. Following is the code for the user control
as well:

<%@ Control Language="C#" AutoEventWireup="true"
CodeFile="NewEditDeleteButtons.ascx.cs"
Inherits="UserControls_NewEditDeleteButtons" %>
<%@ Register TagPrefix="ctrl" Namespace="IDWeb.Web.Control"
Assembly="IDWeb.Web" %>
<asp:Table ID="AEDBTable" runat="server">
<asp:TableRow runat="server">
<asp:TableCell ID="TableCell26" runat="server" CssClass="data">
<ctrl:Button ID="btnNew" runat="server" Text="+"
OnClick="btnNew_Click"/>
</asp:TableCell>
<asp:TableCell ID="TableCell1" runat="server" CssClass="data">
<ctrl:Button ID="btnEdit" runat="server" Text="e"
OnClick="btnEdit_Click"/>
</asp:TableCell>
<asp:TableCell ID="TableCell27" runat="server" CssClass="data">
<ctrl:Button ID="btnDelete" runat="server" Text="X"
OnClick="btnDelete_Click"/>
</asp:TableCell>
</asp:TableRow>
</asp:Table>

Note the Register element referencing the IDWeb.Web assembly. If I
understand your response correctly, you're saying this should work as-is,
right?

Regards,
Bill

> Hi Bill,
>
[quoted text clipped - 29 lines]
> This posting is provided "AS IS" with no warranties, and confers no
> rights.

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