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刪除的GridView行沒有查詢有我的GridView我怎麼能在DB
<asp:GridView ID="Grid" runat="server" AutoGenerateColumns="false" AutoGenerateEditButton="true"
ForeColor="#333333" Width="600px" OnRowEditing="Grid_RowEditing" OnRowDeleting="Grid_RowDeleting"
OnRowUpdating="Grid_RowUpdating" OnRowDeleted="Grid_RowDeleted" OnRowCancelingEdit="Grid_RowCancelingEdit"
ShowFooter="True" DataKeyNames="id">
<Columns>
<asp:CommandField ShowDeleteButton="true" />
<asp:CommandField ShowInsertButton="true" ShowHeader="true" />
<asp:BoundField ReadOnly="true" DataField="ProductID" HeaderText="ProductID" NullDisplayText="sad" />
<asp:BoundField ReadOnly="true" DataField="ProductName" HeaderText="ProductName" />
<asp:BoundField DataField="Quantity" HeaderText="Quantity" />
<asp:BoundField DataField="UnitPrice" HeaderText="TotalPrice" />
</Columns>
</asp:GridView>
我想刪除行這種方法
protected void Grid_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int index = Convert.ToInt32(e.RowIndex);
Grid.DeleteRow(index);
}
但幾秒鐘後,我得到
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我該怎麼做?
有我的數據源。我想刪除行,而不刪除記錄在數據庫
var query =
from order in mydb.Order_Details
join orderdetail in mydb.Order_Details on order.OrderID equals orderdetail.OrderID
join product in mydb.Products on order.ProductID equals product.ProductID
where order.OrderID==editOrderID
select new
{
ProductID = order.Product.ProductID,
ProductName = order.Product.ProductName,
Quantity = order.Quantity,
UnitPrice = order.UnitPrice
}
into f
group f by f.ProductID;
var outputData = query.Select(g => new
{
id= g.Key,
ProductID = g.FirstOrDefault().ProductID,
ProductName = g.FirstOrDefault().ProductName,
Quantity = g.FirstOrDefault().Quantity,
UnitPrice = g.FirstOrDefault().UnitPrice
});
Grid.DataSource = outputData;
Grid.DataBind();
我會想象你得到一個計算器,因爲你的'Grid_RowDeleting '每次通過'Grid.DeleteRow(index)'命令都會被調用。你應該從你的DataSource/DataTable中刪除數據。所以在這種情況下,你的代碼的這一部分在Grid.DeleteRow(index)之後缺少給出有意義的答案 – Icepickle 2015-02-09 12:22:40
;再次綁定你的GridView ...檢查它........例如Grid.DataBind(); – 2015-02-09 12:27:19
@ Pranav-BitWiser結果相同 – user4523894 2015-02-09 12:28:26