datagridview DragDrop 实现拖放后 获取所在单元格的位置

Posted 2023-04-27

实现拖动，mouse_down可以获取 原单元格的位置 但是 释放后 ，所在单元格位置怎么确定呢

参考技术A private void dataGridView1_MouseDoubleClick(object sender, MouseEventArgs e)

try

DataGridView dr = (DataGridView)sender;
System.Windows.Forms.DataGridView.HitTestInfo hti;
hti = dr.HitTest(e.X, e.Y);
if (hti.Type == DataGridViewHitTestType.Cell)

int rowX = hti.RowIndex;
int rowY = hti.ColumnIndex;
if (dr.Rows[rowX].Cells[rowY].Value != null)





catch (System.Exception error)

MessageBox.Show(error.Message.ToString());

WPF 精修篇 拖拽 DragDrop

原文:WPF 精修篇 拖拽 DragDrop

WPF 实现拖拽

效果

   <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="197*"/>
            <ColumnDefinition Width="209*"/>
            <ColumnDefinition Width="111*"/>
        </Grid.ColumnDefinitions>
        <WrapPanel x:Name="accept" HorizontalAlignment="Left" Height="320" VerticalAlignment="Top" Width="207" Grid.Column="1" Margin="2,0,0,0" Background="#FFE7FFE5" Drop="WrapPanel_Drop" AllowDrop="True" />
        <WrapPanel x:Name="send" HorizontalAlignment="Left" Height="320" VerticalAlignment="Top" Width="197" Background="#FFFFEDCD" MouseLeftButtonDown="WrapPanel_MouseLeftButtonDown">
            <Label Content="Label1" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>
            <Label Content="Label2" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>
            <Label Content="Label3" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>
            <Label Content="Label4" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>
            <Label Content="Label5" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>
            <Label Content="Label6" Height="31" Width="51" Background="#FFDCA1A1" Margin="5"/>
        </WrapPanel>
 
    </Grid>

     private void WrapPanel_Drop(object sender, DragEventArgs e)
        {
      
            var item = e.Data;
            object data = item.GetData(item.GetFormats()[0]);
            if (data is UIElement) 
            {
                send.Children.Remove(data as UIElement);
                accept.Children.Add(data as UIElement);
            }
        
        }
 
        private void WrapPanel_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            object item = e.Source;
            if (item is UIElement) 
            {
                DragDrop.DoDragDrop(item as UIElement, item, DragDropEffects.Move);
            }
        }

 

accept 一方的控件 需要加上  AllowDrop="True" 允许接收drop的数据