如何将gridview行从一个网格拖动到另一个网格 [英] how to drag gridview row from one grid to another

问题描述

我有一个具有行的gridview。我希望用户能够抓住一行，并将其移动到winform上的其他几个网格视图之一。我该怎么做呢？我不熟悉如何在这里实现拖放。

任何有关这种拖放的好教程？感谢您的帮助。

更新：好的，我有以下代码（从gridPODetails拖到dataGridView1，它还没有工作，但我离我很近获取拖拽箭头和加号在目的地）。我缺少什么？

  private void gridPODetails_MouseDown（object sender，MouseEventArgs e） 
 {
 DataGridView.HitTestInfo info = gridPODetails.HitTest（eX，eY）; 
 
 if（info.RowIndex> = 0）
 {
 // DataRowView view =（DataRowView）gridPODetails.Rows [info.RowIndex] .DataBoundItem; // WRONG 
 DataRow view =（（DataTable）（gridPODetails.DataSource））。Rows [info.RowIndex]; // RIGHT 
 if（view！= null）
 {
 gridPODetails.DoDragDrop（view，DragDropEffects.Copy）; 
} 
} 
} 
 
 private void dataGridView1_DragEnter（object sender，DragEventArgs e）
 {
 e.Effect = DragDropEffects.Copy; 
} 
 
 private void dataGridView1_Dra gDrop（object sender，DragEventArgs e）
 {
 DataGridView grid = sender as DataGridView; 
 DataTable table = grid.DataSource as DataTable; 
 DataRow row = e.Data.GetData（typeof（DataRow））作为DataRow; 
 
 if（row！= null&&& table！= null&& row.Table！= table）
 {
 table.ImportRow（row）; 
 row.Delete（）; 
} 
} 
  

解决方案：查看我上面的编辑。我实际上抓住了整个datatable，而不仅仅是我想要的行。当然，目的地只知道如何使用Rows，而不是整个表。现在它的工作！

解决方案

我发现这个 Bing search 。它看起来像你正在寻找的东西。

http：// tv.devexpress.com/Content/XtraGrid/XtraGridDragRowsBetweenGrids/XtraGridDragRowsBetweenGrids.pdf

I have a gridview with rows. I'd like the user to be able to grab a row, and move it to one of several other gridviews on the winform. How can I go about doing this? I'm not familiar with how to implement drag and drop here.

Any good tutorials on this sort of drag and drop? Thanks for your help.

UPDATE: Ok, I have the following code (to drag from gridPODetails to dataGridView1. Its not working yet, but I"m closer (now I get drag arrow and plus sign in the destination). What am I missing?

 private void gridPODetails_MouseDown(object sender, MouseEventArgs e)
{
    DataGridView.HitTestInfo info = gridPODetails.HitTest(e.X, e.Y);

    if (info.RowIndex >= 0)
    {
        //DataRowView view = (DataRowView)gridPODetails.Rows[info.RowIndex].DataBoundItem;  //WRONG
        DataRow view = ((DataTable)(gridPODetails.DataSource)).Rows[info.RowIndex];  //RIGHT
        if (view != null)
        {
            gridPODetails.DoDragDrop(view, DragDropEffects.Copy);
        }
    }
}

private void dataGridView1_DragEnter(object sender, DragEventArgs e)
{
    e.Effect = DragDropEffects.Copy;
}

private void dataGridView1_DragDrop(object sender, DragEventArgs e)
{
    DataGridView grid = sender as DataGridView;
    DataTable table = grid.DataSource as DataTable;
    DataRow row = e.Data.GetData(typeof(DataRow)) as DataRow;

    if (row != null && table != null && row.Table != table)
    {
        table.ImportRow(row);
        row.Delete();
    }
}

SOLVED: See my edit above. I was actually grabbing the entire datatable, not just the row I wanted. Of course the destination only knows how to work with Rows, not entire tables. Now its working!

解决方案

I found this on a Bing search. It looks like exactly what you're looking for.

http://tv.devexpress.com/Content/XtraGrid/XtraGridDragRowsBetweenGrids/XtraGridDragRowsBetweenGrids.pdf

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