Question

我搜索每个地方，但我找不到解决问题的方法我只是想知道如何在数据网格视图中创建一个右键菜单来编辑SQL中的数据

这是我的代码，用于创建右键单击的上下文菜单，但我无法调用表单从行中获取数据，我右键单击它并编辑数据。

public void Rightclick()
   {
       ContextMenu Rmnu = new ContextMenu();
       MenuItem mnuCCS = new MenuItem("Change Class Size");
       MenuItem mnuDeactv = new MenuItem("Deactivate");

       mnuCCS.Click += new EventHandler(radGridView_Class_View_Click);
       mnuDeactv.Click += new EventHandler(radGridView_Class_View_Click);

       Rmnu.MenuItems.AddRange(new MenuItem[] { mnuCCS, mnuDeactv });
       radGridView_Class_View.ContextMenu = Rmnu;



   }
   private void radGridView_Class_View_Click(object sender, EventArgs e)
   {
       Rightclick();
   }

我想创建一个用于编辑的表单...从datagrid获取数据并使用右键菜单编辑... ...

有人可以帮助我......谢谢......

Answer 1

我想，你应该看看这个MSDN-article。它显示了如何使用ContextMenuStrip解决问题。

以下示例：

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 test1
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        // Test-Data
        dataGridView1.DataSource = GetTestData();

        // Add menu
        AddContextMenu(dataGridView1);

        // remember mouse location
        AddMouseEnterEvent();
    }

    private DataTable GetTestData()
    {
        DataTable tab = new DataTable();
        DataColumn c1 = new DataColumn("col1");
        DataColumn c2 = new DataColumn("col2");
        tab.Columns.AddRange(new DataColumn[] { c1, c2 });
        DataRow r1 = tab.NewRow(); r1[c1] = "cell 1"; r1[c2] = "cell 2";
        DataRow r2 = tab.NewRow(); r2[c1] = "cell 3"; r2[c2] = "cell 4";
        tab.Rows.Add(r1);
        tab.Rows.Add(r2);

        return tab;
    }

    private void AddContextMenu(DataGridView dgv)
    {
        var strip = new ContextMenuStrip();
        var menu1 = strip.Items.Add("Change Class Size");
        var menu2 = strip.Items.Add("Deactivate");

        menu1.Click += new EventHandler(menu1_Click);
        menu2.Click += new EventHandler(menu2_Click);
        foreach (DataGridViewColumn column in dgv.Columns)
        {
            column.ContextMenuStrip = strip;
        }
    }

    DataGridViewCellEventArgs mouseLocation;
    void AddMouseEnterEvent()
    {
        dataGridView1.CellMouseEnter += (s,e) => { mouseLocation = e; };
    }

    void menu2_Click(object sender, EventArgs e)
    {
        var cell = dataGridView1.Rows[mouseLocation.RowIndex].Cells[mouseLocation.ColumnIndex];
        // do something stupid
        cell.Style.BackColor = Color.Red;
    }

    void menu1_Click(object sender, EventArgs e)
    {
        var cell = dataGridView1.Rows[mouseLocation.RowIndex].Cells[mouseLocation.ColumnIndex];
        // do something even more stupid
        cell.Style.BackColor = Color.Blue;
    }
}
}

C＃datagridview右键单击选择行和显示菜单以调用表单以编辑所选行

1 个答案: