从DataGridView获取所选的行 [英] Get the selected Rows from a DataGridView

问题描述

每当用户点击添加到购物车时，我将添加用户找到的网格（屏幕截图的左侧）中选择的行添加到所选项目网格（屏幕截图的右侧）按钮。

I am adding those rows which are selected by user in "Items Found" grid ( left hand side of screen shot) to "Items selected" grid ( right hand side of screen shot) whenever the user clicks "Add To Cart" button.

屏幕截图：链接http://img856.imageshack.us/img856/3015/datagridview.jpg 。

搜索按钮带来了搜索中的图书列表服务。
我在itemFoundList中显示的是DataGridView。

The Search Button brings the list of books from the Search Service. Which I display in itemsFoundList which is DataGridView.

private void searchButton_Click( object sender, EventArgs e )
{
    itemsFoundList.Columns.Clear ();
    string[] list = searchServiceClient.BookSearch ( getBookName.Text, getAuthorName.Text );
    itemsFoundList.Columns.Add ( "Items", "Items found:" );
    displayToGrid ( itemsFoundList, list );
}

现在我没有得到如何将所选行添加到cartList（这是一个DataGridView）。

Now I am not getting how to add the selected rows to cartList(which is a DataGridView).

private void addToCart_Click( object sender, EventArgs e ) {
    //I am not getting what to write here.
}

推荐答案

要将DataGridView的SelectionMode更改为FullRowSelect。否则，用户可能会选择单元格而不是行，下面的代码将不起作用。 [虽然你可以选择类似的选定单元格]

First in you'll probably want to change the SelectionMode of your DataGridView to FullRowSelect. Otherwise users will likely select cells and not rows and the code below would not work. [Though you could do something similar with Selected Cells]

然后，你需要从类似以下代码开始：

Then you'll want to start with code similar to the following:

foreach (DataGridViewRow r in dataGridView1.SelectedRows)
{
   //Code to add selected row to new datagrid.
   //Important to note that dataGridView2.Rows.Add(r) will not work 
   //because each row can only belong to one data grid.  You'll have 
   //to create a new Row with the same info for an exact copy
}

我个人将将bookid作为隐藏列返回，以便在处理用户的购物车时可用。

Personally I would return the bookid as a hidden column so that it ends up being available for when you are processing the user's cart.

如果您想将项目从一个DataGridViewRow移动到另一个[这样它们一次只能存在于一个列表中]可以这样做。

If you wanted to move the items from one DataGridViewRow to the other [so that they could only exist in one list at a time] you could do this.

foreach (DataGridViewRow r in dataGridView1.SelectedRows)
{
  dataGridView1.Rows.Remove(r);
  dataGridView2.Rows.Add(r);
}

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