/// <summary>
/// 获取DataGrid控件单元格
/// </summary>
/// <param name="dataGrid">DataGrid控件</param>
/// <param name="rowIndex">单元格所在的行号</param>
/// <param name="columnIndex">单元格所在的列号</param>
/// <returns>指定的单元格</returns>
public static DataGridCell GetCell(this DataGrid dataGrid, int rowIndex, int columnIndex)
{
var rowContainer = dataGrid.GetRow(rowIndex);
if (rowContainer == null)
{
return(null);
}
var presenter = YControlHelper.GetVisualChild <DataGridCellsPresenter>(rowContainer);
if (presenter == null)
{
return(null);
}
var cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(columnIndex);
if (cell != null)
{
return(cell);
}
dataGrid.ScrollIntoView(rowContainer, dataGrid.Columns[columnIndex]);
cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(columnIndex);
return(cell);
}
/// <summary>
/// 设置指定单元格的背景色
/// </summary>
public static void SetCellBackground(this DataGrid dataGrid, int rowIndex, int columnIndex, Brush brush, string toolTip = null)
{
try
{
var row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex);
var presenter = YControlHelper.GetVisualChild <DataGridCellsPresenter>(row);
var cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(columnIndex);
var baseStyle = dataGrid.FindResource("DataGridCellStyle") as Style;
var celStyle = new Style(typeof(DataGridCell), baseStyle);
celStyle.Setters.Add(new Setter {
Property = Control.BackgroundProperty, Value = brush
});
cell.Style = celStyle;
cell.ToolTip = toolTip;
}
catch (Exception)
{
//
}
}