vb System.Data.DataRow.Item类(方法)实例源码

Private Sub DataGrid1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs)
    
    Dim dataGridTable As DataTable = _
        CType(DataGrid1.DataSource, DataTable)
    ' Set the current row using the RowNumber 
    ' property of the CurrentCell.
    Dim currentRow As DataRow = _
        dataGridTable.Rows(DataGrid1.CurrentCell.RowNumber)
    Dim column As DataColumn = dataGridTable.Columns(1)

    ' Get the value of the column 1 in the DataTable.
    label1.Text = currentRow(column).ToString()
End Sub
 
Private Sub SetDataRowValue( _
    ByVal grid As DataGrid, ByVal newVal As Object)

    ' Set the value of a column in the last row of a DataGrid.
    Dim table As DataTable = CType(grid.DataSource, DataTable)
    Dim row As DataRow = table.Rows(table.Rows.Count - 1)
    Dim column As DataColumn = table.Columns("FirstName")
    row(column)= newVal
End Sub

Private Sub DataGrid1_Click _
    (ByVal sender As System.Object, ByVal e As System.EventArgs)

    ' Get the DataTable the grid is bound to.
    Dim thisGrid As DataGrid = CType(sender, DataGrid)
    Dim table As DataTable = CType(thisGrid.DataSource, DataTable)
    Dim currentRow As DataRow = _
        table.Rows(thisGrid.CurrentCell.RowNumber)

    ' Get the value of the column 1 in the DataTable.
    Console.WriteLine(currentRow(1))
    ' You can also use the name of the column:
    ' Console.WriteLine(currentRow("FirstName"))
    End Sub

    Private Sub SetDataRowValue( _
        ByVal grid As DataGrid, ByVal newValue As Object)

    ' Set the value of the last column in the last row of a DataGrid.
    Dim table As DataTable
    table = CType(grid.DataSource, DataTable)
    Dim row As DataRow 
    row = table.Rows(table.Rows.Count-1)
    row(table.Columns.Count-1) = newValue
End Sub

Private Sub DataGrid1_Click( _
    sender As Object, e As System.EventArgs)
     
    ' Get the DataTable the grid is bound to.
    Dim thisGrid As DataGrid = CType(sender, DataGrid)
    Dim table As DataTable = _
        CType(thisGrid.DataSource, DataTable)
    Dim currentRow As DataRow = _
        table.Rows(thisGrid.CurrentCell.RowNumber)

    ' Get the value of the column 1 in the DataTable.
    Console.WriteLine(currentRow("FirstName"))
    ' You can also use the index:
    ' Console.WriteLine(currentRow(1).ToString())
End Sub
    
Private Sub SetDataRowValue( _
    grid As DataGrid, newValue As Object)
    ' Set the value of the first column in 
    ' the last row of a DataGrid.
    Dim table As DataTable = _
        CType(grid.DataSource, DataTable)
    Dim row As DataRow
    row = table.Rows((table.Rows.Count - 1))
    row("FirstName") = newValue
End Sub

Private Sub DataGrid1_Click _
    (ByVal sender As System.Object, ByVal e As System.EventArgs)

    Dim dataGridTable As DataTable = _
        CType(DataGrid1.DataSource, DataTable)

    ' Set the current row using the RowNumber 
    ' property of the CurrentCell.
    Dim currentRow As DataRow = dataGridTable.Rows( _
        DataGrid1.CurrentRowIndex)
    Dim column As DataColumn = dataGridTable.Columns(1)

    ' Get the value of the column 1 in the DataTable.
    label1.Text = currentRow(column, _
        DataRowVersion.Current).ToString()
End Sub

Private Sub DataGrid1_Click _
    (ByVal sender As System.Object, ByVal e As System.EventArgs)
    
    ' Set the current row using the RowNumber property of the CurrentCell.
    Dim currentRow As DataRow = CType(DataGrid1.DataSource, DataTable). _
       Rows(DataGrid1.CurrentCell.RowNumber)

    ' Get the value of the column 1 in the DataTable.
    label1.Text = currentRow(1, DataRowVersion.Current).ToString()
End Sub

Private Sub DataGrid1_Click _
    (ByVal sender As System.Object, ByVal e As System.EventArgs)
    
    ' Set the current row using the RowNumber property 
    ' of the CurrentCell.
    Dim currentRow As DataRow = _
        CType(DataGrid1.DataSource, DataTable). _
        Rows(DataGrid1.CurrentCell.RowNumber)

    ' Print the current value of the column named "FirstName."
    Console.WriteLine(currentRow("FirstName", _
        DataRowVersion.Current).ToString())
End Sub