Question

我在ConsumerList页面中有一个gridView。单击“编辑”按钮（在每行中）时，它将导航到EditConsumer页面。在EditConsumer页面中，我需要使用 Page.PreviousPage 获取所选行的值。如何获得这些价值？

    public void Consumer_RowCommand(Object sender, GridViewCommandEventArgs e)
    {

        if (e.CommandName == "CustomEdit")
        {
            int rowIndex = Convert.ToInt32(e.CommandArgument);
            string consumerID = grdConsumers.Rows[rowIndex].Cells[1].Text;
            string consumerName = grdConsumers.Rows[rowIndex].Cells[2].Text;
            string consumerUrl = grdConsumers.Rows[rowIndex].Cells[3].Text;
            string consumerStatus = grdConsumers.Rows[rowIndex].Cells[4].Text;

            Response.Redirect("EditConsumer.aspx?RowIndex=" + rowIndex);
        }
    }

MARKUP

  <asp:GridView ID="grdConsumers" runat="server" AutoGenerateColumns="False" CssClass="resultGridTable"
                GridLines="None" EnableViewState="True" AllowSorting="True" OnSorting="Consumers_Sorting" OnRowCommand="Consumer_RowCommand">
                <AlternatingRowStyle BackColor="#E5E5E5" />
                <Columns>

                   <asp:TemplateField HeaderText="Action">
                        <ItemTemplate>

                             <asp:Button ID="btnView" runat="server" CssClass="actionButtonView"
                                  Text="VIEW" Style="width: 40px" BackColor="Orange"
                                  Font-Bold="True" ForeColor="White" /> 

                             <asp:Button ID="btnEdit" runat="server" CommandName="CustomEdit" CommandArgument="<%# ((GridViewRow)Container).RowIndex %>"
                              CssClass="actionButtonEdit"
                                  Text="EDIT" Style="width: 35px" BackColor="Orange"
                                  Font-Bold="True" ForeColor="White" /> 

                             <asp:Button ID="btnDelete" runat="server" CssClass="actionButtonDelete"
                                  Text="DELETE" Style="width: 55px" BackColor="Orange"
                                  Font-Bold="True" ForeColor="White" />

                             <asp:Button ID="btnPing" runat="server" CssClass="actionButtonPing"
                                  Text="PING" Style="width: 35px" BackColor="Orange"
                                  Font-Bold="True" ForeColor="White" />

                         </ItemTemplate>
                    </asp:TemplateField>

                    <asp:BoundField HeaderText="Consumer ID" DataField="ConsumerID" SortExpression="ConsumerID"></asp:BoundField>
                    <asp:BoundField HeaderText="Consumer Name" DataField="ConsumerName" SortExpression="ConsumerName"></asp:BoundField>
                    <asp:BoundField HeaderText="Consumer URL" DataField="ConsumerURL" SortExpression="ConsumerURL"></asp:BoundField>
                    <asp:BoundField HeaderText="Status" DataField="Status" SortExpression="Status"></asp:BoundField>



                </Columns>
            </asp:GridView>

Answer 1

检查how to use Page.PreviousPage。

Answer 2

注意：PreviousPage只有!= null cross page posting，Response.Redirect无效。因此，您可以使用Server.Transfer。

您可以提供一个公共属性SelectedConsumer，它返回GridView中精确选择的行的自定义对象。

public Consumer SelectedConsumer
{
    get {
        if (grdConsumers.SelectedRow == null)
            return null;

        var c = new Consumer();
        c.consumerID = grdConsumers.SelectedRow.Cells[1].Text;
        c.consumerName = grdConsumers.SelectedRow.Cells[2].Text;
        c.consumerUrl = grdConsumers.SelectedRow.Cells[3].Text;
        c.consumerStatus = grdConsumers.SelectedRow.Cells[4].Text;

        return c;
    }
}

现在您只需要将PreviousPage属性转换为正确的页面类型：

var consumerList = (ConsumerList)Page.PreviousPage;
var selectedConsumer = consumerList.SelectedConsumer;

使用页面上一页获取GridView选定的行值

2 个答案: