what gives here? datagridview,datatable problem

Hi Guys,

I am populating my datagridview like this:

Code:

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PeopleTable = GetNewGameSheet(classid)

            dgvgame.Columns.Clear()

            Me.PeopleBindingSource.DataSource = PeopleTable
            dgvgame.DataSource = Me.PeopleBindingSource
            PeopleBindingNavigator.BindingSource = PeopleBindingSource

            With Depositbtn
                .HeaderText = "Deposit"
                .UseColumnTextForButtonValue = True
                .Text = "Deposit"
                .Name = "Deposit"
            End With

            With Withdrawalbtn
                .HeaderText = "Withdrawal"
                .UseColumnTextForButtonValue = True
                .Text = "Withdrawal"
                .Name = "Withdrawal"
            End With

            With comboboxcolumn
                .DataPropertyName = "jobid"
                .DataSource = RetrieveAllJobs()
                .ValueMember = "JobID"
                .DisplayMember = "Description"
                .HeaderText = "Job"
                .DisplayIndex = 4
                '.Name = "JobID"
                '.AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
                '.ReadOnly = True
            End With
         
            With dgvgame
                .Columns("PeopleId").Visible = False
                .Columns("ClassId").Visible = False
                .Columns("AccountId").Visible = False
                .Columns("JobId").Visible = False

                .Columns("surname").HeaderText = "Surname"
                .Columns("firstname").HeaderText = "First Name"
                .Columns("balance").HeaderText = "Balance"

                .Columns("Day1").HeaderText = "Day 1"
                .Columns("Day1").AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
                .Columns("Day2").HeaderText = "Day 2"
                .Columns("Day2").AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
                .Columns("Day3").HeaderText = "Day 3"
                .Columns("Day3").AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
                .Columns("Day4").HeaderText = "Day 4"
                .Columns("Day4").AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
                .Columns("Day5").HeaderText = "Day 5"
                .Columns("Day5").AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells


                .Columns.Add(Depositbtn)
                .Columns.Add(Withdrawalbtn)
                .Columns.Add(comboboxcolumn)

            End With

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Code:

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Private Function GetNewGameSheet(ByVal classid As Integer) As DataTable

        Using con As New SqlConnection(dbpath)

            Dim command As New SqlCommand("SELECT peopleid,surname,firstname,balance,accountid,classid,cast(6 as bigint) as jobid,CAST(0 as bit) Day1,CAST(0 as bit) Day2, CAST(0 as bit) Day3, CAST(0 as bit) Day4, CAST(0 as bit) Day5 FROM v_new_gamesheet WHERE (ClassId=@ClassId) ORDER BY surname", con)
            command.Parameters.AddWithValue("@ClassId", classid)

            PeopleAdapter.SelectCommand = command
            PeopleTable = New DataTable
            PeopleAdapter.AcceptChangesDuringFill = False
            PeopleAdapter.Fill(PeopleTable)
            PeopleTable.Columns.Add("Wage")

            Return PeopleTable

        End Using


    End Function

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then on the cellvaluechanged event of the datagridview I have thsi code:

what this does is, if a job is selected in the jobid combobox i get the wage attached to that job and for each checked column i add the wage up.

Code:

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Private Sub dgvgame_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvgame.CellValueChanged
        Dim balance As Decimal = 0
        Dim wage As Decimal = 0
        Using con As New SqlConnection(dbpath)

   
            If (dgvgame.Columns(e.ColumnIndex).Name = "Day1") Or (dgvgame.Columns(e.ColumnIndex).Name = "Day2") Or (dgvgame.Columns(e.ColumnIndex).Name = "Day3") Or (dgvgame.Columns(e.ColumnIndex).Name = "Day4") Or (dgvgame.Columns(e.ColumnIndex).Name = "Day5") Then
                If (e.RowIndex >= 0) Then
                    Dim jobID As Integer = CInt(If(IsDBNull(dgvgame.Rows(e.RowIndex).Cells("JobID").Value), 0, dgvgame.Rows(e.RowIndex).Cells("JobID").Value))

                    If (jobID > 0) Then
                        Dim wagecmd As New SqlCommand("SELECT Wage FROM Jobs WHERE JobID = @JobID;", con)

                        wagecmd.Parameters.AddWithValue("@JobID", jobID)

                        con.Open()
                        wage = CDec(wagecmd.ExecuteScalar())
                        con.Close()

                    End If

                    If (CBool(dgvgame.Rows(e.RowIndex).Cells(e.ColumnIndex).Value) = True) Then

                        dgvgame.Rows(e.RowIndex).Cells("Wage").Value = CDec(If(IsDBNull(dgvgame.Rows(e.RowIndex).Cells("Wage").Value), 0, dgvgame.Rows(e.RowIndex).Cells("Wage").Value)) + wage

                    Else

                        If (CDec(dgvgame.Rows(e.RowIndex).Cells("Wage").Value) > 0) Then
                            dgvgame.Rows(e.RowIndex).Cells("Wage").Value = CDec(dgvgame.Rows(e.RowIndex).Cells("Wage").Value) - wage
                        End If

                    End If

                End If
            End If

        End Using
    End Sub

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now this all works fine when I run my save code which i am posting in the next thread the value in my datatable for the Day1 column etc is true if I check it

Code:

---

Dim testforchanges As DataTable
        Me.Validate()

        'get new recs
        testforchanges = PeopleTable.GetChanges(DataRowState.Added)

        If testforchanges IsNot Nothing Then
            Dim j As Integer = 0

            Dim dt As New Date
            dt = Me.MonthCalendar1.SelectionStart
            Dim weeknumber As Integer = DatePart(DateInterval.WeekOfYear, dt)
            Dim dayofweek As FirstDayOfWeek = FirstDayOfWeek.Monday

            'get last date of week. Friday
            Dim tdate As Date = dt.AddDays(5 - CInt(dt.DayOfWeek))

            For j = 0 To testforchanges.Rows.Count - 1

                Dim peopleid As Long = CLng(testforchanges.Rows(j).Item("PeopleId"))
                Dim jobid As Long = CLng(If(IsDBNull(testforchanges.Rows(j).Item("JobID")), 0, testforchanges.Rows(j).Item("JobID")))
                Dim accountid As Long = CLng(testforchanges.Rows(j).Item("accountid"))

                Dim d1 = testforchanges.Rows(j).Item("Day1")
                Dim d2 = testforchanges.Rows(j).Item("Day2")
                Dim d3 = testforchanges.Rows(j).Item("Day3")
                Dim d4 = testforchanges.Rows(j).Item("Day4")
                Dim d5 = testforchanges.Rows(j).Item("Day5")

---

as i said above the values in the datatable for these columns are true if i check them.

then I have this code under a button that I check all the day columns:

Code:

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Private Sub btnCheckAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheckAll.Click

              For Each row As DataGridViewRow In Me.dgvgame.Rows
            row.Cells("Day1").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day2").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day3").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day4").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day5").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)

        Next

    End Sub

---

it checks all the checkboxes fine but when I save, even if the checkbox is checked i get false returned.

Please tell me what i am doing wrong

ok guys, ignore all my code. i know theres alot there. but this code specifically is the problem:

why is it when I tick each checkbox with the mouse and save the changes push through to my datatable but when I check them using the below code the changes don't push through to the datatable?

Code:

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Private Sub btnCheckAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheckAll.Click

              For Each row As DataGridViewRow In Me.dgvgame.Rows
            row.Cells("Day1").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day2").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day3").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day4").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)
            row.Cells("Day5").Value = (row.Cells("JobID").Value IsNot DBNull.Value AndAlso row.Cells("JobID").Value IsNot Nothing)

        Next

    End Sub

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