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How to sort an unbound DataGridView control in vb.net

Posted on 2009-04-07
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Last Modified: 2013-12-26
I have a vb.net form with datagridview control that bound programmatically. The data source for this control is coming from a SQL query, I want to take advantage of the sorting capabilities that are part of the datagridview. How can i accomplish the column sorting. I want to give the user the ability to sort by clicking on any of the columns.

Here is how I'm supplying the datasource:

 TicketList = TicketsDB.GetTickets("Open")

            DataGridViewTickets.DataSource = TicketList
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Question by:mkarkoukli
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5 Comments
 
LVL 4

Expert Comment

by:Avelan
ID: 24092595
Hey,

Without seeing your project, there's one suggestion that i'll make.
Check the SortMode property of each column in your datagridview and
make it Automatic. Although in a testproject i made, all of the columns are
set to Automatic by default and sorting works without any changes to
anywhere.

-Avelan
0
 

Author Comment

by:mkarkoukli
ID: 24098666
Here is the code that populates the datagridview


Try
            TicketList = TicketsDB.GetTickets("Open")

            DataGridViewTickets.DataSource = TicketList

            DataGridViewTickets.Columns("TicketId").Visible = False
            DataGridViewTickets.Columns("User").Visible = False
            DataGridViewTickets.Columns("Category").Visible = False
            DataGridViewTickets.Columns("Product").Visible = False
            DataGridViewTickets.Columns("Status").Visible = False
            DataGridViewTickets.Columns("TicketDescription").Visible = False
            DataGridViewTickets.Columns("fkDepartmentID").Visible = False
            DataGridViewTickets.Columns("AssignedTo").Visible = False
            DataGridViewTickets.Columns("MarkForDeletion").Visible = False

            DataGridViewTickets.Columns("TicketNumber").HeaderText = "Ticket Number"
            DataGridViewTickets.Columns("DateEntered").HeaderText = "Date Created"
            DataGridViewTickets.Columns("UserFullName").HeaderText = "Client Name"
            DataGridViewTickets.Columns("TicketAging").HeaderText = "Aging"
            DataGridViewTickets.Columns("Priority").HeaderText = "Priority"
            DataGridViewTickets.Columns("StatusDesc").HeaderText = "Status"
            DataGridViewTickets.Columns("AssignedToName").HeaderText = "Assigned To"
            DataGridViewTickets.Columns("DateClosed").HeaderText = "Date Closed"
            DataGridViewTickets.Columns("TicketType").HeaderText = "Ticket Type"
            DataGridViewTickets.Columns("Department").HeaderText = "Department"
            DataGridViewTickets.Columns("CategoryName").HeaderText = "Category"
            DataGridViewTickets.Columns("ProductServiceName").HeaderText = "Product/Service"


            DataGridViewTickets.Columns("TicketNumber").DisplayIndex = 1
            DataGridViewTickets.Columns("StatusDesc").DisplayIndex = 2
            DataGridViewTickets.Columns("Priority").DisplayIndex = 3
            DataGridViewTickets.Columns("DateEntered").DisplayIndex = 4
            DataGridViewTickets.Columns("DateClosed").DisplayIndex = 5
            DataGridViewTickets.Columns("TicketAging").DisplayIndex = 6
            DataGridViewTickets.Columns("UserFullName").DisplayIndex = 7
            DataGridViewTickets.Columns("Department").DisplayIndex = 8
            DataGridViewTickets.Columns("AssignedToName").DisplayIndex = 9
            DataGridViewTickets.Columns("TicketType").DisplayIndex = 10
            DataGridViewTickets.Columns("CategoryName").DisplayIndex = 11
            DataGridViewTickets.Columns("ProductServiceName").DisplayIndex = 12

            'DataGridViewTickets.ReadOnly = True
            DataGridViewTickets.AllowUserToResizeColumns = False
            DataGridViewTickets.SelectionMode = DataGridViewSelectionMode.FullRowSelect
            DataGridViewTickets.AutoResizeColumns()

        Catch ex As Exception
            MessageBox.Show(ex.Message, ex.GetType.ToString)
        End Try
0
 
LVL 4

Expert Comment

by:Avelan
ID: 24099250
What is your datasource?

Your datasource needs to support sorting.

-Avelan
0
 

Author Comment

by:mkarkoukli
ID: 24099347
My datasource is a list  "List(Of Tickets)"


Public Shared Function GetTickets(ByVal strMode As String) As List(Of Tickets)
        Dim TicketList As New List(Of Tickets)
        Dim connection As SqlConnection = DBConnection.GetConnection(True)
        Dim SQL As String = ""
        Const closed As Integer = 5
 
        If strMode = "Open" Then
            SQL = "SELECT tblTicketsQueue.pkTicketID, tblTicketsQueue.DateEntered, tblUsers.UserFirstName, " _
                      & "tblUsers.UserLastName, tblUsers_1.UserFirstName AS AFirstName, tblUsers_1.UserLastName AS ALastName, tblDepartment.DepartmentName, " _
                      & "tblTicketsQueue.TicketNumber, " _
                      & "tblTicketsQueue.TicketPriority, tblTicketsQueue.TicketType, tblCategory.CategoryDesc, " _
                      & "tblProductsAndServices.ProductsAndServicesDesc, tblTicketsQueue.TicketDescription, " _
                      & "tblTicketsQueue.CloseDate, tblStatus.StatusDesc, tblTicketsQueue.fkUser, tblTicketsQueue.fkCategory, " _
                      & "tblTicketsQueue.fkProduct, tblTicketsQueue.fkStatus, tblTicketsQueue.AssignedTo, tblUsers.fkDepartmentID " _
                & "FROM tblTicketsQueue INNER JOIN " _
                      & "tblStatus ON tblTicketsQueue.fkStatus = tblStatus.pkStatusID INNER JOIN " _
                      & "tblUsers ON tblTicketsQueue.fkUser = tblUsers.pkUserID INNER JOIN " _
                      & "tblCategory ON tblTicketsQueue.fkCategory = tblCategory.pkCategoryID INNER JOIN " _
                      & "tblDepartment ON tblUsers.fkDepartmentID = tblDepartment.pkDepartmentID INNER JOIN " _
                      & "tblProductsAndServices ON tblTicketsQueue.fkProduct = tblProductsAndServices.pkProductAndServices LEFT OUTER JOIN " _
                      & "tblUsers AS tblUsers_1 ON tblTicketsQueue.AssignedTo = tblUsers_1.pkUserID " _
                & "WHERE tblTicketsQueue.fkStatus NOT LIKE " & closed & " AND tblTicketsQueue.MarkForDeletion NOT LIKE 1 " _
                & "ORDER BY pkTicketID DESC"
 
        End If
        Dim selectCommand As New SqlCommand(SQL, connection)
 
        Try
            connection.Open()
            Dim reader As SqlDataReader
            reader = selectCommand.ExecuteReader()
            Dim i As Integer
            i = reader.RecordsAffected
 
            Dim Ticket As Tickets
            Do While reader.Read
                Ticket = New Tickets
                Ticket.TicketId = CLng(reader("pkTicketID"))
                Ticket.DateEntered = CDate(reader("DateEntered"))
                If Not IsDBNull(reader("CloseDate")) Then
                    Ticket.TicketAging = DateDiff(DateInterval.DayOfYear, CDate(reader("DateEntered")), CDate(reader("CloseDate")))
                Else
                    Ticket.TicketAging = DateDiff(DateInterval.DayOfYear, CDate(reader("DateEntered")), Now)
                End If
                Ticket.TicketNumber = reader("TicketNumber").ToString
                Ticket.UserFullName = reader("UserFirstName").ToString & " " & reader("UserLastName").ToString
                Ticket.AssignedToName = reader("AFirstName").ToString & " " & reader("ALastName").ToString
                Ticket.Department = reader("DepartmentName").ToString
                Ticket.Priority = reader("TicketPriority").ToString
                Ticket.TicketType = reader("TicketType").ToString
                Ticket.CategoryName = reader("CategoryDesc").ToString
                Ticket.ProductServiceName = reader("ProductsAndServicesDesc").ToString
                Ticket.StatusDesc = reader("StatusDesc").ToString
                Ticket.User = CInt(reader("fkUser"))
                Ticket.Category = CInt(reader("fkCategory"))
                Ticket.Product = CLng(reader("fkProduct"))
                Ticket.Status = CInt(reader("fkStatus"))
                Ticket.fkDepartmentID = CInt(reader("fkDepartmentID"))
                Ticket.TicketDescription = reader("TicketDescription").ToString
                If Not IsDBNull(reader("CloseDate")) Then
                    Ticket.DateClosed = CDate(reader("CloseDate"))
                End If
                If Not IsDBNull(reader("AssignedTo")) Then
                    Ticket.AssignedTo = CLng(reader("AssignedTo"))
                End If
                TicketList.Add(Ticket)
            Loop
            reader.Close()
 
        Catch ex As Exception
            Throw ex
        Finally
            connection.Close()
        End Try
        Return TicketList
    End Function

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LVL 4

Accepted Solution

by:
Avelan earned 500 total points
ID: 24099568
Ok, you will need to implement sorting in a custom list.

I won't paste any links since there were too many of them,
just put 'sortable bindinglist' in google and you'll probably find
your answer quicker that way :)

-Avelan
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