DataGrid.Item[] 属性

定义

命名空间:
System.Windows.Forms
程序集:
System.Windows.Forms.dll

获取或设置指定单元格的值。

重载

名称 说明
Item[DataGridCell]

获取或设置指定 DataGridCell值。
Item[Int32, Int32]

获取或设置指定行和列处单元格的值。

Item[DataGridCell]

Source:
DataGrid.cs
Source:
DataGrid.cs

获取或设置指定 DataGridCell值。

public:
 property System::Object ^ default[System::Windows::Forms::DataGridCell] { System::Object ^ get(System::Windows::Forms::DataGridCell cell); void set(System::Windows::Forms::DataGridCell cell, System::Object ^ value); };
public object this[System.Windows.Forms.DataGridCell cell] { get; set; }
member this.Item(System.Windows.Forms.DataGridCell) : obj with get, set
Default Public Property Item(cell As DataGridCell) As Object

参数

cell
DataGridCell

表示网格中的单元格的 A DataGridCell 。

属性值

Object

单元格的值（类型为 Object）。

示例

下面的代码示例通过声明 DataGridCell 变量、设置变量 RowNumber 和值，然后首先更改、返回给定单元格的值来设置和 ColumnNumber 获取单元格的值。

void SetCellValue( DataGrid^ myGrid )
{
   DataGridCell myCell;
   
   // Use an arbitrary cell.
   myCell.RowNumber = 1;
   myCell.ColumnNumber = 1;
   
   // Change the cell's value using the CurrentCell.
   myGrid[ myCell ] = "New Value";
}

void GetCellValue( DataGrid^ myGrid )
{
   DataGridCell myCell;
   
   // Use and arbitrary cell.
   myCell.RowNumber = 1;
   myCell.ColumnNumber = 1;
   Console::WriteLine( myGrid[ myCell ] );
}

private void SetCellValue(DataGrid myGrid){
   DataGridCell myCell = new DataGridCell();
   // Use an arbitrary cell.
   myCell.RowNumber = 1;
   myCell.ColumnNumber = 1;
   // Change the cell's value using the CurrentCell.
   myGrid[myCell]="New Value";
}
 
private void GetCellValue(DataGrid myGrid){
   DataGridCell myCell = new DataGridCell();
   // Use and arbitrary cell.
   myCell.RowNumber = 1;
   myCell.ColumnNumber = 1;
   Console.WriteLine(myGrid[myCell]);
}

Private Sub SetCellValue(ByVal myGrid As DataGrid)
   Dim myCell As New DataGridCell()
   ' Use an arbitrary cell.
   myCell.RowNumber = 1
   myCell.ColumnNumber = 1
   ' Change the cell's value using the CurrentCell.
   myGrid(myCell)= "New Value"
End Sub
 
Private Sub GetCellValue(ByVal myGrid As DataGrid)
   Dim myCell As New DataGridCell()
   ' Use an arbitrary cell.
   myCell.RowNumber = 1
   myCell.ColumnNumber = 1
   Console.WriteLine(myGrid(myCell))
End Sub

注解

设置此属性会将该 DataView 行的位置更改为指定行。

另请参阅

适用于

Item[Int32, Int32]

Source:
DataGrid.cs
Source:
DataGrid.cs

获取或设置指定行和列处单元格的值。

public:
 property System::Object ^ default[int, int] { System::Object ^ get(int rowIndex, int columnIndex); void set(int rowIndex, int columnIndex, System::Object ^ value); };
public object this[int rowIndex, int columnIndex] { get; set; }
member this.Item(int * int) : obj with get, set
Default Public Property Item(rowIndex As Integer, columnIndex As Integer) As Object

参数

rowIndex
Int32

包含值的行的从零开始的索引。

columnIndex
Int32

包含值的列的从零开始的索引。

属性值

Object

单元格的值（类型为 Object）。

例外

ArgumentOutOfRangeException

获取或设置时，范围 rowIndex 不足。

获取或设置时，范围 columnIndex 不足。

示例

下面的代码示例打印指定行和索引处单元格包含的值。

void PrintCellValues( DataGrid^ myGrid )
{
   int iRow;
   int iCol;
   DataTable^ myTable;
   
   // Assumes the DataGrid is bound to a DataTable.
   myTable = dynamic_cast<DataTable^>(dataGrid1->DataSource);
   for ( iRow = 0; iRow < myTable->Rows->Count; iRow++ )
   {
      for ( iCol = 0; iCol < myTable->Columns->Count; iCol++ )
      {
         Console::WriteLine( myGrid[iRow, iCol] );

      }

   }
}

private void PrintCellValues(DataGrid myGrid){
    int iRow;
    int iCol;
    DataTable myTable;
    // Assumes the DataGrid is bound to a DataTable.
    myTable = (DataTable) dataGrid1.DataSource;
    for(iRow = 0;iRow < myTable.Rows.Count ;iRow++) {
       for(iCol = 0;iCol < myTable.Columns.Count ;iCol++) {
          Console.WriteLine(myGrid[iRow, iCol]);
       }
    }
 }

Private Sub PrintCells(ByVal myGrid As DataGrid)
    Dim iRow As Integer
    Dim iCol As Integer
    Dim myTable As DataTable
    ' Assumes the DataGrid is bound to a DataTable.
    myTable = CType(DataGrid1.DataSource, DataTable)
    For iRow = 0 To myTable.Rows.Count - 1
       For iCol = 0 To myTable.Columns.Count - 1
          Console.WriteLine(myGrid(iRow, iCol))
       Next iCol
    Next iRow
 End Sub

注解

设置此属性会将该 DataView 行的位置更改为指定行。

适用于