Question

public class PurchaseOrderItem
{
    public Int64 PONumber { get; set; }
    public string Description { get; set; }
    public string UM { get; set; }
    public int QTY { get; set; }
    public decimal Cost { get; set; }
}

foreach (PurchaseOrderItem item in po.PurchaseOrderItems)
{
    dgvPOItem.Rows.Add(item);
}

上面的Foreach不起作用。我不能使用DataSource，因为我需要在添加数据后添加一个空行因此，将来会有一个空行，用户可以在gridview上添加值。

Answer 1

你不能使用BindingList<PurchaseOrderItem>吗？这应该允许您从dgv控件（使用空行）

添加项目到您的集合

编辑：我创建了简单的WinForm应用，只有主要形式的DGV控制

Form1.cs代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1 {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();

            list.Add( new PurchaseOrderItem() {
                PONumber = 1,
                Description = "First item",
                UM = "something",
                QTY = 2341,
                Cost = 0.99M
            } );

            dataGridView1.DataSource = list;

            dataGridView1.RowsAdded += new DataGridViewRowsAddedEventHandler( dataGridView1_RowsAdded );
        }

        void dataGridView1_RowsAdded( object sender, DataGridViewRowsAddedEventArgs e ) {
            object o = list;    // added for breakpoint with variable viewing
            // you can watch your list changing here, when you add new rows
        }

        BindingList list = new BindingList();
    }

    public class PurchaseOrderItem {
        public Int64 PONumber { get; set; }
        public string Description { get; set; }
        public string UM { get; set; }
        public int QTY { get; set; }
        public decimal Cost { get; set; }
    }
}

C＃Windows Form GridView - 如何将类添加到GridView中？

1 个答案: