public void DataGridViewSelectedCellCollection_CopyTo_InvokeEmpty_Success()
{
using var control = new DataGridView();
DataGridViewSelectedCellCollection collection = control.SelectedCells;
var array = new object[] { 1, 2, 3 };
collection.CopyTo(array, 1);
Assert.Equal(new object[] { 1, 2, 3 }, array);
}
/// <summary>
/// 将选中的单元格的数据同步到该单元格所属的行或列
/// </summary>
/// <param name="cells">单元格集合</param>
/// <param name="type">0-行 1-列 2全部</param>
public static void cellsDataCopyToRowOrCol(DataGridView dataGrid, int type)
{
DataGridViewSelectedCellCollection selCells = dataGrid.SelectedCells;
// 将选中单元格集合变为数组
DataGridViewCell[] cells = new DataGridViewCell[selCells.Count];
selCells.CopyTo(cells, 0);
// 执行同步
cellsDataCopyToRowOrCol(cells, type);
}
public void DataGridViewSelectedCellCollection_CopyTo_InvokeNotEmpty_ReturnsExpected()
{
using var control = new DataGridView
{
RowCount = 3,
ColumnCount = 1,
SelectionMode = DataGridViewSelectionMode.CellSelect
};
control.Rows[0].Cells[0].Selected = true;
control.Rows[1].Cells[0].Selected = false;
control.Rows[2].Cells[0].Selected = true;
DataGridViewSelectedCellCollection collection = control.SelectedCells;
var array = new object[] { 1, 2, 3 };
collection.CopyTo(array, 1);
Assert.Equal(new object[] { 1, control.Rows[2].Cells[0], control.Rows[0].Cells[0] }, array);
}
private void InitStructure(DataGridViewSelectedCellCollection Cells)
{
if (Cells != null)
{
selected = new DataGridViewCell[Cells.Count];
values = new string[selected.Length];
Cells.CopyTo(selected, 0);
Array.Sort(selected, new Comparer());
for (int index = 0; index < values.Length; index++)
{
values[index] = selected[index].Value;
}
native = new object[values.Length];
values.CopyTo(native, 0);
int minColumn = int.MaxValue, maxColumn = int.MinValue;
RowsCount = selected[selected.Length - 1].RowIndex - selected[0].RowIndex + 1;
foreach (DataGridViewCell cell in selected)
{
if (cell.ColumnIndex > maxColumn)
{
maxColumn = cell.ColumnIndex;
}
if (cell.ColumnIndex < minColumn)
{
minColumn = cell.ColumnIndex;
}
}
ColumnsCount = maxColumn - minColumn + 1;
}
}
