Solved

Web User Control - ListItemCollection

Posted on 2008-06-13
1
671 Views
Last Modified: 2012-06-21
I am using VS 2005 and VB.net. I have a web user control that I have added a drop down list. I would like to add custom property of list item collection. I would like for the property to display in the properties window on visual studio. I can't seem to get this to work. The property displays, but no elipsis to add items to the collection. Any help?
*************html********************
<table>
    <tr>
        <td align="right">
            Filter where:</td>
        <td>
            <asp:DropDownList ID="ddlDimFilt" runat="server" AppendDataBoundItems="True">
            </asp:DropDownList>
        </td>
        <td>
            <asp:DropDownList ID="ddlDimLimiter" runat="server">
                <asp:ListItem Selected="True">Begins with</asp:ListItem>
                <asp:ListItem>Contains</asp:ListItem>
                <asp:ListItem>is Exactly</asp:ListItem>
            </asp:DropDownList>
        </td>
        <td>
            <asp:TextBox ID="txtDimFilter" runat="server" ValidationGroup="DimFilter" Width="128px"></asp:TextBox>
            <asp:RequiredFieldValidator ID="rfvDimFilter" runat="server" ControlToValidate="txtDimFilter"
                ErrorMessage="Filter text required" ValidationGroup="DimFilter">*</asp:RequiredFieldValidator>
        </td>
        <td>
            <asp:Button ID="btnDimFilter" runat="server" Text="Filter" ValidationGroup="DimFilter" />
            <asp:Button ID="btnDimClear" runat="server" Text="Clear" />
        </td>
    </tr>
</table>
 
*************html********************
 
************code behind snippet**************
Public ReadOnly Property Items() As ListItemCollection
        Get
            If Me._cItems Is Nothing Then
                Me._cItems = New ListItemCollection()
            End If
            Return Me._cItems
        End Get
    End Property
 
    Protected Overloads Overrides Sub CreateChildControls()
        If Me._cItems Is Nothing Then
            Me._cItems = New ListItemCollection()
        End If
        If _cItems.Count > 0 Then
            For Each item As ListItem In _cItems
                Me.ddlDimFilt.Items.Add(item)
            Next
        End If
    End Sub
 
    Public Overloads Overrides Sub DataBind()
        CreateChildControls()
        ChildControlsCreated = True
        Me.ddlDimFilt.DataBind()
        MyBase.DataBind()
    End Sub
************code behind snippet**************

Open in new window

0
Comment
Question by:Gary2397
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 16

Accepted Solution

by:
ororiole earned 500 total points
ID: 21789514
User controls will not give you design time editors thru the ellipsis button. For that you would need to create a custom control (derive from webcontrol) and then implement your design time editor, which is s windows form by deriving from one of the UI editor types.

Since your user control includes a rich set of web controls and layout, your best bet is to stick with the user control and do without the collection design time editor.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It’s quite interesting for me as I worked with Excel using vb.net for some time. Here are some topics which I know want to share with others whom this might help. First of all if you are working with Excel then you need to Download the Following …
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question