datagridView編輯

Question

我有一個綁定到SQLite數據庫的datagridview。現在，我想修改datagridview中的一些字段。

有4個TEXT列 - 時間戳，消息，類型，散列。 現在我找到了一行，我想右鍵單擊它..它應該有選項 - 「包括」..所以，當我點擊包含在上下文菜單中，我的DGV的類型列應更改爲「包含」從以前的任何東西...（我不希望它被啓用編輯..我只是希望它在程序中更改）如何獲得我點擊並訪問該特定單元格以修改它的索引？ ？

Answer 1

此代碼你想要做什麼：

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

     BindingList<User> users = new BindingList<User>(); 
     users.Add(new User(){Name = "Fred", Included = "False", Title="Mr"}); 
     users.Add(new User(){Name = "Sue", Included = "False", Title="Dr"}); 
     users.Add(new User(){Name = "Jack", Included = "False", Title="Mr"}); 

     dataGridView1.DataSource = users; 
    } 


    private void dataGridView1_MouseDown(object sender, MouseEventArgs e) 
    { 
     if (e.Button == System.Windows.Forms.MouseButtons.Right) 
     { 
      DataGridView.HitTestInfo hit = dataGridView1.HitTest(e.X, e.Y); 

      if (hit.rowIndex >= 0) 
      { 
       dataGridView1.ClearSelection(); 
       dataGridView1.Rows[hit.RowIndex].Selected = true; 
       contextMenuStrip1.Show(this.dataGridView1, new Point(e.X, e.Y)); 
      } 
     } 
    } 

    private void includeToolStripMenuItem_Click_1(object sender, EventArgs e) 
    { 
     // Included was the name of the column to change in my example code, 
     // you could also use the index of the column if you know it. 
     dataGridView1.SelectedRows[0].Cells["Included"].Value = "Included"; 
    } 
} 

public class User 
{ 
    public string Name { get; set; } 
    public string Title { get; set; } 
    public string Included { get; set; } 
} 

我想不出通知上下文菜單哪一行的一個更好的辦法是比實際使用所選行選擇DataGridView的屬性 - 你也可以將它存儲在一個類級別的字段中，但我認爲這不是很整潔。

Answer 2

private void dataGridView_DoubleClick(object sender, EventArgs e) 
{ 
    var grid = (DataGridView)sender; 
    var point = grid.PointToClient(Cursor.Position); 
    var hit = grid.HitTest(p.X, p.Y);  
    MessageBox.Show(string.Format("{0}/{1}", hit.ColumnIndex, hit.RowIndex)); 
} 

代碼沒有經過編譯測試，但理論上這應該可以完成這項工作。

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dataGridView.Rows[rowIndex].Cells[cellIndex].Value = "something";