如何在winform中的每個按鈕單擊時向datagrid添加新行

Question

我想在每次按下按鈕時將新行添加到gridcontrol。 我嘗試了很多方法，但沒有成功。我正在發送我的代碼。

private void B_Click(object sender, EventArgs e) 
{ 
    Button bt = (Button)sender; 
    int productId = (int)bt.Tag; 
    AddProductDataContext db = new AddProductDataContext(); 
    decimal Quantity; 
    decimal.TryParse(txtCalculator.Text, out Quantity); 
    gridControl1.DataSource = from inv in db.Inventories where inv.RecId == productId 
     select new 
     { 
     inventoryName = inv.InventoryName, 
     Quantity, 
     Total = Quantity * inv.InventoryPrice 
     }; 
    gridView1.AddNewRow(); 
    gridView1.UpdateCurrentRow(); 
} 

有沒有人能幫我解決上述問題？在此先感謝您的寶貴答覆。

Answer 1

試試這個：

Button bt = (Button)sender; 
     int productId = (int)bt.Tag; 
     AddProductDataContext db = new AddProductDataContext(); 
     decimal Quantity; 
     decimal.TryParse(txtCalculator.Text, out Quantity); 
    var results = from inv in db.Inventories 
              where inv.RecId == productId 
              select new 
              { 
               inventoryName = inv.InventoryName, 
               Quantity, 
               Total = Quantity * inv.InventoryPrice 
              }; 

       DataTable dt = new DataTable(); 
       dt.Columns.Add("inventoryName"); 
       dt.Columns.Add("Quantity"); 
       dt.Columns.Add("Total"); 

       foreach (var x in results) 
       { 
        DataRow newRow = dt.Rows.Add(); 
        newRow.SetField("inventoryName", x.inventoryName); 
        newRow.SetField("Quantity", x.Quantity); 

        newRow.SetField("Total", x.Total); 

       } 

       gridControl1.DataSource = dt; 
       gridView1.AddNewRow();