Multiselect DropDownList Retreive selected items

6 posts, 0 answers
  1. Richard
    Richard avatar
    20 posts
    Member since:
    Sep 2010

    Posted 02 Dec 2010 Link to this post

    I'm currently using a multiselect enabled dropdownlist.  How do I retreive the list of 'selected' items in the multiselect dropdownlist?

  2. Richard
    Richard avatar
    20 posts
    Member since:
    Sep 2010

    Posted 02 Dec 2010 Link to this post

    Never Mind.  I figured it out.  If anyone is interested in seeing the solution, please ask in a reply and I'll post the code.


  3. Peter
    Peter avatar
    1157 posts

    Posted 07 Dec 2010 Link to this post

    Hi Richard,

    Thank you for writing.

    By default RadDropDownList control does not support multiple selection due to Close operation on mouse click.

    We will be glad if you share your solution with community.

    the Telerik team
    Get started with RadControls for WinForms with numerous videos and detailed documentation.
  4. Nathaniel
    Nathaniel avatar
    12 posts
    Member since:
    Feb 2009

    Posted 27 Jul 2011 Link to this post


    I would like to see your code please.
  5. Richard
    Richard avatar
    20 posts
    Member since:
    Sep 2010

    Posted 27 Jul 2011 Link to this post

    GetProjectList = "" 
    Dim intCount As Integer = 0 
    For intCount = 0 To (Me.cboPinProject.EditorControl.SelectedRows.Count - 1) 
       GetProjectList = GetProjectList & "'" & Me.cboPinProject.EditorControl.SelectedRows.Item(intCount).Cells(0).Value & "'," 
    Next intCount 
    GetProjectList = Mid(GetProjectList, 1, GetProjectList.Length - 1)



    In the above code, I initialize a string variable 'GetProjectList'.  I also initialize a loop counter 'intCount'
    Then I loop through the 'Me.cboPinProject.EditorControl.SelectedRows.Count-1'
    In the loop I can reference the 'Me.cboPinProject.EditorControl.SelectedRows.Item(intCount).Cells(0).Value'

    Note:  'cboPinProject' is the name of the dropdownlist  and ...Cells(0) is a reference to the first column in the dropdownlist  (my dropdownlist has two columns)


  6. Jack
    Jack avatar
    2333 posts

    Posted 01 Aug 2011 Link to this post

    Hi Richard,

    By looking at your code I can assume that you are using RadMultiColumnComboBox. In fact it also does not support multiple row selection. However, you can work around this limitation by using a RadDropDownButton and hosting RadGridView as a child item. Please consider the following code snippet:
    RadGridView grid = newRadGridView();
    grid.BindingContext = newSystem.Windows.Forms.BindingContext();
    grid.DataSource = table;
    grid.Size = newSystem.Drawing.Size(200, 200);
    RadDropDownButton menu = newRadDropDownButton();
    menu.Text = "DropDown";
    menu.Location = newPoint(10, 10);
    menu.Size = newSize(100, 20);

    If you have further questions, do not hesitate to ask.
    Best wishes,
    the Telerik team

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