Multiple field DisplayMember

7 posts, 0 answers
  1. Nick Jones
    Nick Jones avatar
    18 posts
    Member since:
    Jun 2009

    Posted 24 Mar 2011 Link to this post

    Hi

    Linking a dropdownlist to a datatable seems simple enough:

    cbEName.DataSource = Main.DataSet.Employee
    cbEName.DisplayMember = "FName"
    cbEName.ValueMember = "id"

    But I want to display the persons full name and the display member.  Logically I'd write something like this:

    cbEName.DataSource = Main.DataSet.Employee
    cbEName.DisplayMember = "FName" & " " & "LName"
    cbEName.ValueMember = "id"

    But that obviously doesn't work.  Anyone know how to run through the dropdown list collection and add the surname?
  2.
  3. Nick Jones
    Nick Jones avatar
    18 posts
    Member since:
    Jun 2009

    Posted 25 Mar 2011 Link to this post

    In case anyone is interested this is how I solved it.

    For Each record As DataSet.EmployeeRow In Main.DataSet.Employee
                For Each emp As RadListDataItem In cbEName.Items
                    If record.id = emp.Value Then
                        emp.Text = emp.Text.Trim & " " & record.LName
                    End If
                Next
            Next
  5. Ivan Petrov
    Admin
    Ivan Petrov avatar
    718 posts

    Posted 29 Mar 2011 Link to this post

    Hello Nick,

    Thank you for writing and for sharing your solution.

    You can also subscribe to the VisualListItemFormatting event of the RadDropDownList and format the text of the menu items. There is a small drawback as the text in the RadDropDownList will display only the display member not the formatted text of the menu item. The plus however is that you will avoid the two nested foreach loops.

    void radDropDownList1_VisualListItemFormatting(object sender, VisualItemFormattingEventArgs args)
    {
       DataRowView row = args.VisualItem.Data.DataBoundItem as DataRowView;
       args.VisualItem.Text = row["FirstName"] + " " + row["LastName"];        
    }

    I hoper this will be useful. If you need further assistance, I would be glad to provide it.

    Best wishes,
    Ivan Petrov
    the Telerik team
    Vote for the 7 Telerik products at the 2011 Great Indian Developer Awards!
  7. PROGRA
    PROGRA avatar
    7 posts
    Member since:
    Jun 2013

    Posted 18 Jul 2013 Link to this post

    ADD TO PROPERTY ValueMember
  8.
  9. Ivan Petrov
    Admin
    Ivan Petrov avatar
    718 posts

    Posted 23 Jul 2013 Link to this post

    Hello Cervantes,

    Thank you for writing.

    Unfortunately, half of a sentence is not enough for me what do you mean, hence I am not able to give you any kind of meaningful answer. Can you please, explain what your question is or what you want to achieve in more details. Any pictures or sketches that illustrate your requirement would also be very useful.

    Looking forward to your reply.

    Regards,
    Ivan Petrov
    Telerik
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  11. Alejandro
    Alejandro avatar
    10 posts
    Member since:
    Jul 2012

    Posted 02 Aug 2017 in reply to Nick Jones Link to this post

    Hi.

    I Solved adding a auto generate prop inside my class like it follows:

    public string FullName
            {
                get
                {
                    return FName + " " + LName ;
                }
            }

     

    And then you can call it just like this:

    cbEName.DataSource = Main.DataSet.Employee;
    cbEName.DisplayMember = "FullName"
    cbEName.ValueMember = "id";

     

  13. Dess | Tech Support Engineer, Sr.
    Admin
    Dess | Tech Support Engineer, Sr. avatar
    4166 posts

    Posted 03 Aug 2017 Link to this post

    Hello Alejandro, 

    Thank you for writing.  

    Indeed, creating a property that combines multiple fields is the appropriate approach for displaying more than one field. It is just necessary to set that field as DisplayMember. 

    I hope this information helps. Should you have further questions I would be glad to help.

    Regards,
    Dess
    Progress Telerik
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