I have an DataGridView with custom DataTable (not SQL database). where my coding like this
Sub Tabel()
Tabel1 = New DataTable
With Tabel1
.Columns.Add("kodebarang")
.Columns.Add("namabarang")
.Columns.Add("satuan")
.Columns.Add("harga", GetType(Double))
.Columns.Add("jumlah", GetType(Integer))
.Columns.Add("hargatotal", GetType(Double))
End With
DataGridView1.DataSource = Tabel1
With DataGridView1
.Columns(0).HeaderText = "ID"
.Columns(1).HeaderText = "Item Name"
.Columns(2).HeaderText = "Unit"
.Columns(3).HeaderText = "Unit Price"
.Columns(4).HeaderText = "Qty"
.Columns(5).HeaderText = "Total Price"
.Columns(3).DefaultCellStyle.Format = "###,###,###"
.Columns(5).DefaultCellStyle.Format = "###,###,###"
.Columns(1).ReadOnly = True
.Columns(2).ReadOnly = True
.Columns(3).ReadOnly = True
.Columns(5).ReadOnly = True
.Columns(3).DefaultCellStyle.BackColor = Color.LightBlue
.Columns(4).DefaultCellStyle.BackColor = Color.LightGray
.Columns(0).DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(1).DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft
.Columns(2).DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(3).DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight
.Columns(4).DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(5).DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight
.Columns(1).HeaderCell.Style.BackColor = Color.LightBlue
.Columns(0).HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(1).HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(2).HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(3).HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(4).HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(5).HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
.Columns(1).AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill
End With
For i = 0 To DataGridView1.Columns.Count - 1
DataGridView1.Columns.Item(i).SortMode = DataGridViewColumnSortMode.Programmatic
Next i
End Sub
and I use CellEndEdit to change datagrid cell value.
Private Sub DataGridView_CellEndEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEndEdit
celWasEndEdit = DataGridView1(e.ColumnIndex, e.RowIndex)
txtNamaBarang.Text = DataGridView1.Rows.Count - 1
If e.ColumnIndex = 0 Then
Call Connect()
Sql = "SELECT * FROM databarang WHERE kodebarang='" & DataGridView1.CurrentRow.Cells(0).Value & "'"
Cmd = New OdbcCommand(Sql, Con)
Read = Cmd.ExecuteReader
While Read.Read()
DataGridView1.Rows(e.RowIndex).Cells(1).Value = Read("namabarang")
DataGridView1.Rows(e.RowIndex).Cells(2).Value = Read("satuan")
DataGridView1.Rows(e.RowIndex).Cells(3).Value = Read("hargapartai")
End While
ElseIf e.ColumnIndex = 4 Then
Dim Quantity As Integer = DataGridView1.Rows(e.RowIndex).Cells(4).Value
Dim UnitPrice As Integer = DataGridView1.Rows(e.RowIndex).Cells(3).Value
Dim TotalPrice As Integer = Quantity * UnitPrice
DataGridView1.Rows(e.RowIndex).Cells(5).Value = TotalPrice
End If
End Sub
but i got error when I change Column 4 (Qty) Value. Conversion from type 'DBNull' to type 'Integer' is not valid., but if change my code to
ElseIf e.ColumnIndex = 4 Then
DataGridView1.Rows(e.RowIndex).Cells(3).Value, MsgBoxStyle.Information, "Error")
End If
I can get the Column 3 Value in MsgBox.
CellEndEdit
you must first useCellBeginEdit
with this scenario of yours. Also, if you want to format the DataGridView, useCellFormatting
– evry1fallse.ColumnIndex = 4
should be insideCellBeginEdit
? – GaroPpoColumn 0 = ID Number, Column 1 = Item Name, Column 2 = Unit, Column 3 = Unit Price, Column 4 = Quantity, Column 5 = Total Price.
What i need to do is CalculateTotal Price
Where if user Enter number iniColumn 4
, theColumn 5
Value will show the result ofColumn 3 * Column 4
. I add it onCellEndEdit
, because i thought the command will be generate when it's EndEdit the cell – GaroPpo