VB.NET从 DataGridView 选定的多个单元格的数据复制到其他选中的单元格,详细举例说明事件
时间: 2024-02-20 16:59:22 浏览: 153
假设有一个 DataGridView 名为 dgv1,其中有多个单元格被选中。现在需要将这些选中的单元格中的数据复制到其他选中的单元格中。以下是一个详细的实现过程:
1. 在 Form_Load 事件中添加以下代码,启用 DataGridView 的多选模式:
```
dgv1.MultiSelect = True
dgv1.SelectionMode = DataGridViewSelectionMode.CellSelect
```
2. 在 DataGridView 的 CellMouseDown 事件中添加以下代码,用于记录下选中的单元格的位置信息:
```
Private selectedCells As New List(Of DataGridViewCell)
Private Sub dgv1_CellMouseDown(sender As Object, e As DataGridViewCellMouseEventArgs) Handles dgv1.CellMouseDown
If e.Button = MouseButtons.Left AndAlso e.RowIndex >= 0 AndAlso e.ColumnIndex >= 0 Then
selectedCells.Clear()
For Each cell As DataGridViewCell In dgv1.SelectedCells
selectedCells.Add(cell)
Next
selectedCells.Add(dgv1(e.ColumnIndex, e.RowIndex))
End If
End Sub
```
3. 在 DataGridView 的 CellMouseUp 事件中添加以下代码,用于将选中的单元格中的数据复制到其他选中的单元格中:
```
Private Sub dgv1_CellMouseUp(sender As Object, e As DataGridViewCellMouseEventArgs) Handles dgv1.CellMouseUp
If e.Button = MouseButtons.Left AndAlso e.RowIndex >= 0 AndAlso e.ColumnIndex >= 0 AndAlso selectedCells.Count > 1 Then
Dim sourceCell As DataGridViewCell = dgv1(e.ColumnIndex, e.RowIndex)
If selectedCells.Contains(sourceCell) Then
selectedCells.Remove(sourceCell)
For Each cell As DataGridViewCell In selectedCells
cell.Value = sourceCell.Value
Next
End If
End If
End Sub
```
以上代码中,我们首先判断是否按下了左键并且选中了至少两个单元格,然后获取当前鼠标点击的单元格作为源单元格。如果源单元格也在选中的单元格中,则将其从列表中移除,然后遍历其他选中的单元格,将源单元格中的数据复制到它们中。
这样就实现了从 DataGridView 选定的多个单元格的数据复制到其他选中的单元格的功能。
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