C#中dataGridView控件数据绑定

时间 2019-11-08

标签 c# datagridview 控件数据绑定栏目 C# 繁體版

原文原文链接

踏上.NET的路程，菜鸟碰到的第一个问题，mark一下函数

问题：不一样窗体dataGridView之间的数据传递，经过数据绑定实现（假设Form2中的数据要传递到Form1中）:this

1. 定义一个类，存放dataGridView的数据；spa

2. 在Form2中定义dataGridView数据列表，并将数据存放进去；code

3.From2中定义返回绑定数据的函数，返回绑定数据；orm

4. Form1中初始化Column；blog

5. 在Form1中出发Form2，在结束后将From2返回的绑定数据传到Form1中的dataGridView中，完成数据传递。get

From1代码：string

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 WindowsFormsApplication11
{
    public partial class Form1 : Form
    {
        BindingSource source = new BindingSource();

        public Form1()
        {
            InitializeComponent();
            Column1.DataPropertyName = "_ID";
            Column2.DataPropertyName = "_Name";
            Column3.DataPropertyName = "_Value";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 dd = new Form2();
            if (dd.ShowDialog() == DialogResult.OK)
            {
                source.Clear();
                source = dd.returnValue();
                dataGridView1.DataSource = source;
 
            }
        }
    }
}

Form2代码：it

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 WindowsFormsApplication11
{
    public partial class Form2 : Form
    {
        List<DataGrid> dd = new List<DataGrid>();

        

        public Form2()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            
            dd.Clear();
            for (int i = 0; i < dataGridView1.Rows.Count-1; i++)
            {
                DataGrid aa = new DataGrid();
                aa._ID = dataGridView1.Rows[i].Cells[0].Value.ToString();
                aa._Name = dataGridView1.Rows[i].Cells[1].Value.ToString();
                aa._Value = dataGridView1.Rows[i].Cells[2].Value.ToString();
                dd.Add(aa);
            }
            this.DialogResult = DialogResult.OK;
            this.Close();
        }

        public BindingSource returnValue()
        {
            BindingSource source = new BindingSource();
            source.Clear();
            foreach (DataGrid data in dd)
            {
                source.Add(data);
            }
            return source;
        }

    }
}

定义类代码：io

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WindowsFormsApplication11
{
    class DataGrid
    {
        public string _ID { get; set; }
        public string _Name { get; set; }
        public string _Value { get; set; }
    }

}