[RESOLVED] DataGridViewComboBox problem!
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  1. #1
    Join Date
    Dec 2002
    Location
    Tenby, Wales
    Posts
    277

    [RESOLVED] DataGridViewComboBox problem!

    Hi

    I have a DataGridView and am adding columns at runtime. One particular column is a ComboBox column. I have populated it but when I come to run the program, the ComboBoxes are in the relevant cells but don't drop down when you click on them! My code is below:
    Code:
      With DataGridView1
                Dim Penalty As New DataGridViewComboBoxColumn
    
                With Penalty
                    .Name = "Penalty"
                    .HeaderText = "Penalty"
                    .Width = 40
                    .Visible = True
                    .ReadOnly = False
                    .Items.Add("1")
                    .Items.Add("3")
                    .Items.Add("4")
                    .Items.Add("5")
                    .Items.Add("6")
                    .Items.Add("7")
                    .Items.Add("8")
                    .Items.Add("11")
                End With
    
                DataGridView1.Columns.Insert(6, Penalty)
    
            End With
    Any help would be great! Thanks

  2. #2
    Join Date
    Aug 2005
    Location
    Imperial College London, England
    Posts
    490

    Re: DataGridViewComboBox problem!

    Me again!
    Ok, firstly, don't nest With statements. I'm surprised that compiled, as .Name could a property of either. The following code (which is essentially the same) works on my computer:
    Code:
                    Dim Penalty As New DataGridViewComboBoxColumn With {.Name = "Penalty", .ReadOnly = False, .HeaderText = "Penalty", .Width = 40, .Visible = True}
    
                    With Penalty.Items
                            .Add("1")
                            .Add("3")
                            .Add("4")
                            .Add("5")
                            .Add("6")
                            .Add("7")
                            .Add("8")
                            .Add("11")
                    End With
    
                    DataGridView1.Columns.Insert(6, Penalty)
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  3. #3
    Join Date
    Dec 2002
    Location
    Tenby, Wales
    Posts
    277

    Re: DataGridViewComboBox problem!

    Why hello again - thanks for the help!
    Code:
            Dim Penalty As New DataGridViewComboBoxColumn with{.Name = "Penalty", .ReadOnly = False, .HeaderText = "Penalty", .Width = 40, .Visible = True}
    didn't work - it had blue curly lines from the 'with' part onwards and the error said that End of statement was expected.

  4. #4
    Join Date
    Jul 2001
    Location
    Sunny South Africa
    Posts
    11,091

    Re: DataGridViewComboBox problem!

    You could try :
    Code:
    Dim Penalty As New DataGridViewComboBoxColumn 
            With Penalty : .Name = "Penalty" : .ReadOnly = False : .HeaderText = "Penalty" : .Width = 40 : .Visible = True : End With
    You use the colon ( : ) to chain multiple statements onto one line.
    Very Bad practice IMHO, though - and, doesn't address your actual problem
    Last edited by HanneSThEGreaT; July 29th, 2008 at 09:24 AM.

  5. #5
    Join Date
    Dec 2002
    Location
    Tenby, Wales
    Posts
    277

    Re: DataGridViewComboBox problem!

    HanneSThEGreaT

    Have you any idea why the values are not showing up in my ComboBoxes?

    I have been looking over it for about 45mins now with no joy!
    Visual Basic 2005 ver. 8.0.50727.867

  6. #6
    Join Date
    Jul 2001
    Location
    Sunny South Africa
    Posts
    11,091

    Re: DataGridViewComboBox problem!

    I was curious...

    Hi brjames32!

    Well, I took your code exactly as it is on post#1, and it worked - just changed the column index. OK, my DataGridView was not bound to any datasource, but it works, as in the pic.

    So, perhaps your problem is elsewhere
    Last edited by HanneSThEGreaT; June 14th, 2010 at 05:40 AM.

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