从一个DataGridView获取选定行 [英] Get the selected Rows from a DataGridView

问题描述

我加入这是由用户在发现项目网格（屏幕截图的左侧），选择那些行选择项，每当用户点击加入购物车网格（屏幕截图的右手边） 。按钮

该屏幕快照：

搜索按钮带来的从搜索服务书籍列表。
我在itemsFoundList显示这是DataGridView中。

 私人无效searchButton_Click（对象发件人，EventArgs五）
 {
 itemsFoundList.Columns.Clear（） ; 
的String [] =名单searchServiceClient.BookSearch（getBookName.Text，getAuthorName.Text）; 
 itemsFoundList.Columns.Add（项目，找到的项目：）; 
 displayToGrid（itemsFoundList，清单）; 
} 
  

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

 私人无效addToCart_Click（对象发件人，EventArgs五）{
 //我没有得到什么就写到这里。 
} 
  

解决方案

首先，在你可能会要改变你的DataGridView到FullRowSelect的的SelectionMode。否则，用户可能会选择单元格，而不是行和下面的代码是行不通的。 [虽然你可以做选定的单元格类似]

然后你将要开始的代码类似以下内容：

 的foreach（在dataGridView1.SelectedRows的DataGridViewRow R）
 {
 //代码来添加选定行新的数据网格。 
 //需要注意的是dataGridView2.Rows.Add（R）将无法正常工作
 //因为每行只能属于一个数据网格。您将有
 //创建一个新的行为的精确副本
} 
  

同样的信息

我个人将返回BOOKID为隐藏列，以便它结束了，当你处理用户的购物车为是可用的。

如果您想移动从一个的DataGridViewRow的项目其他的你可以做到这一点[，使他们能够在一个列表中一次只能存在。

 的foreach（在dataGridView1.SelectedRows的DataGridViewRow R）
 {
 dataGridView1.Rows.Remove（R）; 
 dataGridView2.Rows.Add（R）; 
} 
  

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.

The screen shot: .

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 );
}

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.
}

解决方案

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]

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
}

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.

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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