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C# datagridview 与 binddingNavigator & BindingSource实现联动,实现单表查看修改保存一例

作者:互联网

学了两个月的WINFORM,越学越感觉C#功能全面,前几天一直在用DATAGRIDVIEW的基本功能,今天尝试了解了 binddingNavigator & BindingSource和DATAGRIDVIEW进行联动,即点击上一下,下一行图标后,下面的textbox文本框的内容可以自动随着变化。

点击修改按钮可以在进行修改;

0# 前提:

定义两个类变量:dt,ds 

        DataTable dt;
        BindingSource bs = new BindingSource();

要点:

1#、datagridview的datasource设为 BindingSource,并且将列表中的字段设置DataPropertyName 为DataTable指定的列;

        private void BindData()
        {
            dataGridView1.DataSource = bs;       //把数据源绑定在dataGridView1上
            //绑定每列的值显示在DatagridView
            this.dataGridView1.Columns[0].DataPropertyName = dt.Columns["id"].ToString();
            this.dataGridView1.Columns[1].DataPropertyName = dt.Columns["begintime"].ToString();
            this.dataGridView1.Columns[2].DataPropertyName = dt.Columns["endtime"].ToString();
            this.dataGridView1.Columns[3].DataPropertyName = dt.Columns["clientid"].ToString();
            this.dataGridView1.Columns[4].DataPropertyName = dt.Columns["clientname"].ToString();
        }

2、将textbox文本框的DataPropertyName 为DataTable指定的列;

            this.txtName.DataBindings.Add("Text", bs, "ClientName");
            this.txtId.DataBindings.Add("Text", bs, "ClientId");
            this.txtGoods.DataBindings.Add("Text", bs, "Goodsid");
            this.txtAmount.DataBindings.Add("Text", bs, "amount");

3、将bindingNavigator1的BindingSource = bs,

 

附上全部代码 ,其中数据库的类定义在DBHelper;

 1 using drp.DB;
 2 using System;
 3 using System.Collections.Generic;
 4 using System.ComponentModel;
 5 using System.Data;
 6 using System.Drawing;
 7 using System.Linq;
 8 using System.Text;
 9 using System.Threading.Tasks;
10 using System.Windows.Forms;
11 
12 namespace drp
13 {
14     public partial class FrmTest : Form
15     {
16         DataTable dt;
17         BindingSource bs = new BindingSource();
18         public FrmTest()
19         {
20             InitializeComponent();
21         }
22 
23         private void FrmTest_Load(object sender, EventArgs e)
24         {
25             
26             string sql = "select * from agreement";
27             dt = DBHelper.ExecuteQuery(sql);
28             bs.DataSource = dt;
29             bindingNavigator1.BindingSource = bs;//把数据源绑定在bindingNavigator1上
30             //把datagridview 的数据源绑定到bs 
31             BindData();
32 
33             this.txtName.DataBindings.Add("Text", bs, "ClientName");
34             this.txtId.DataBindings.Add("Text", bs, "ClientId");
35             this.txtGoods.DataBindings.Add("Text", bs, "Goodsid");
36             this.txtAmount.DataBindings.Add("Text", bs, "amount");
37 
38         }
39      //修改按钮
40         private void button1_Click(object sender, EventArgs e)
41         {
42             this.txtName.Enabled = true;
43             this.txtId.Enabled = true;
44             this.txtGoods.Enabled = true;
45             this.txtAmount.Enabled = true;
46             this.btnEdit.Enabled = false;
47             this.btnSave.Enabled = true;
48         }
49      // 保存
50 private void button2_Click(object sender, EventArgs e) 51 { 52 //接受修改 53 bs.EndEdit(); 54 DBHelper.UpdateDataTable(dt,"agreement"); 55 //将保存按钮改为 不可用 56 this.btnSave.Enabled = false; 57 this.btnEdit.Enabled = true; 58 } 59 60 private void button3_Click(object sender, EventArgs e) 61 { 62 63 } 64 65 private void toolStripSave_Click(object sender, EventArgs e) 66 { 67 bs.EndEdit(); 68 BindData(); 69 DBHelper.UpdateDataTable(dt, "agreement"); 70 } 71 72 private void BindData() 73 { 74 dataGridView1.DataSource = bs; //把数据源绑定在dataGridView1上 75 //绑定每列的值显示在DatagridView 76 this.dataGridView1.Columns[0].DataPropertyName = dt.Columns["id"].ToString(); 77 this.dataGridView1.Columns[1].DataPropertyName = dt.Columns["begintime"].ToString(); 78 this.dataGridView1.Columns[2].DataPropertyName = dt.Columns["endtime"].ToString(); 79 this.dataGridView1.Columns[3].DataPropertyName = dt.Columns["clientid"].ToString(); 80 this.dataGridView1.Columns[4].DataPropertyName = dt.Columns["clientname"].ToString(); 81 } 82 } 83 }

 

标签:binddingNavigator,C#,DataPropertyName,datagridview,ToString,dataGridView1,bs,dt,
来源: https://www.cnblogs.com/lrzy/p/15928196.html