如何在嵌套GridView中单击“按钮”上的文本框值

Question

如何在嵌套gridview

中获取文本框值在按钮上

<asp:GridView ID="GridView2" runat="server">
                   <Columns>
                        <asp:TemplateField>
                            <ItemTemplate>
                                    <asp:ImageButton ID="ImageButton1" runat="server"  OnClick="Show_Hide_ChildGrid" ImageUrl="~/images/plus.png" CommandArgument="Show" Height="20" Width="20" />
                                 <asp:Panel ID="pnlOrders" runat="server" Style="display: none;">
                                    <asp:GridView ID="gvOrders" runat="server" OnRowCommand="gvOrders_RowCommand">
                                        <Columns>

                                            <asp:TemplateField HeaderText="volNo">
                                                <ItemTemplate>
                                                    <asp:TextBox Width="90px" ID="txtVolume" runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"Volume") %>'></asp:TextBox>
                                                </ItemTemplate>
                                                <HeaderStyle Width="91px" />
                                            </asp:TemplateField>
                                           <asp:ButtonField ButtonType="Button" CommandName="Save" Text="Save" HeaderText="Save">
                                                 <HeaderStyle Width="50px" />
                                            </asp:ButtonField>
                                        </Columns>

                                    </asp:GridView>
                                </asp:Panel>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:BoundField DataField="JournalName" HeaderText="JournalName" ></asp:BoundField>
                    </Columns>
                </asp:GridView>

我无法从Child GridView获得文本框值。它的显示错误是，该（GridView ID）在当前上下文中不存在。它在父级GridView中正常工作。当我尝试使用父级virew然后，它的工作正常，这意味着代码是正确的。我做的方式。可能是佩戴的所以请检查。desext and .cs部分都发布。我还提到了我在哪里出现错误

 protected void gvOrders_RowCommand(object sender, GridViewCommandEventArgs e)
    {

        if (e.CommandName == "Save")
        {
                int rowIndex = Convert.ToInt32(e.CommandArgument);
                **GridViewRow row = gvOrders.Rows[rowIndex];** // Here i am getting error that gvOrders does not exit in the current context
                //GridView GVCollapse = (GridView)sender;  //find nested grid view
                //GridViewRow row = (GridViewRow)GVCollapse.Parent.Parent;
                //Fetch value of Name.
                string Journal = (row.FindControl("txtJournalName") as TextBox).Text;
                string Volume = (row.FindControl("txtVolume") as TextBox).Text;
                string Issues = (row.FindControl("txtIssues") as TextBox).Text;
                string DispatchDate = (row1.FindControl("txtDispatchDate") as TextBox).Text;
                string Remarks = (row.FindControl("txtRemarks") as TextBox).Text;

                ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('Name: " + Journal + "\nCountry: " + Volume + "\nDate: " + DispatchDate + "');", true);

        }
    }

Answer 1

用按钮替换按钮：

<asp:TemplateField HeaderText="Save">
    <ItemTemplate>
        <asp:Button ID="btnSave" CommandName="Save" runat="server" Text="Save" />
    </ItemTemplate>
</asp:TemplateField>

在RowCommand事件中尝试：

if (e.CommandName == "Save")
{
    GridViewRow row = (GridViewRow)(((Button)e.CommandSource).NamingContainer);
    GridView gv = (GridView)row.FindControl("gvOrders");
    string Journal = (row.FindControl("txtJournalName") as TextBox).Text;
    //... some other code
}