c# - 如何在 GridView 中编辑和更新行值？

Question

我有一个像这样的 GridView :

<asp:GridView ID="gvProducts" runat="server" AutoGenerateEditButton="True" AutoGenerateColumns="False"
                OnRowEditing="gvProducts_RowEditing" OnRowUpdating="gvProducts_RowUpdating" CellPadding="4"
                ForeColor="#333333" GridLines="None">
                <RowStyle BackColor="#FFFBD6" ForeColor="#333333" />
                <Columns>
                    <asp:TemplateField>
                        <HeaderTemplate>
                            <asp:Label ID="lblPID" runat="server" Text="Product ID"></asp:Label>
                        </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Label ID="lblProdID" runat="server" Text='<%#Eval("ProductID")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtProdID" runat="server" Text='<%#Eval("ProductID")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField>
                        <HeaderTemplate>
                            <asp:Label ID="lblPName" runat="server" Text="Product Name"></asp:Label>
                        </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Label ID="lblProdName" runat="server" Text='<%#Eval("ProductName")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtProdName" runat="server" Text='<%#Eval("ProductName")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                </Columns>
                <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
                <PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
                <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
                <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
                <AlternatingRowStyle BackColor="White" />
            </asp:GridView>

这是页面背后的代码

    protected void gvProducts_RowEditing(object sender, GridViewEditEventArgs e)
    {
        gvProducts.EditIndex = e.NewEditIndex;
    }

    protected void gvProducts_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {

        int i = e.RowIndex;
        object control = gvProducts.Rows[i].FindControl("txtProdID");
        //i want to access the new value from the object "control" but i m getting the previous value only
    }

Answer 1

试试这个

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{ 
TextBox txtProdID = (TextBox)gvProducts.Rows[e.RowIndex].FindControl("txtProdID");
TextBox txtProdName = (TextBox)gvProducts.Rows[e.RowIndex].FindControl("txtProdName");


//Call update method
Product.Update(txtProdId,txtProdName);

gvProducts.EditIndex = -1;
//Refresh the gridviwe
BindGrid(); 
}