我已经尝试过我在这里和其他地方找到的所有建议。我为页面设置了EnableViewState为true和false。我为网格设置了EnableViewState为true和false。我已经尝试在父网格RowCreated中注册子网格的事件。我真的很茫然。我该如何工作？父母或儿童事件都没有被解雇。
<%@ Control Language="C#" EnableViewState="False" AutoEventWireup="False" CodeBehind="View.ascx.cs" Inherits="IMS.Modules.CreateMerchandise.View" %>
<asp:GridView ID="gvVariants"
runat="server"
AutoGenerateColumns="False"
CssClass="Grid"
DataKeyNames="ID"
OnRowDataBound="gvVariants_OnRowDataBound"
ShowFooter="True"
EnableViewState="False"
OnRowCreated="gvVariants_OnRowCreated"
OnRowCommand="gvVariants_OnRowCommand">
<Columns>
<asp:TemplateField InsertVisible="False">
<ItemStyle HorizontalAlign="Center" Width="30"/>
<ItemTemplate>
<img alt="" style="cursor: pointer; height: 20px; width: 20px;" src="../images/ManageMerchandise/plus.png"/>
<asp:Panel ID="pnlValues" runat="server" Style="display: none" EnableViewState="False">
<asp:GridView
ID="gvValues"
runat="server"
AutoGenerateColumns="False"
CssClass="ChildGrid"
DataKeyNames="ID"
ShowFooter="True"
EnableViewState="False"
OnRowCommand="gvValues_OnRowCommand">
<Columns>
<asp:TemplateField ItemStyle-Width="15px">
<FooterTemplate>
<asp:Button runat="server" text="Add" ID="btnAddValue" CommandName="AddValue" CommandArgument='<%# Bind("ID") %>'/>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField
HeaderText="Value"
InsertVisible="True"
ItemStyle-Width="150px">
<ItemTemplate>
<asp:Label ID="lblValue" runat="server"
Text='<%# Bind("VariantValue") %>'>
</asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="NewValue" runat="server" Width="150"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Use">
<ItemTemplate>
<asp:CheckBox ID="cbUseVariantValue" runat="server"
Enabled="true"/>
</ItemTemplate>
<FooterTemplate>
<asp:CheckBox ID="cbUseNewVariantValue" runat="server"/>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</asp:Panel>
</ItemTemplate>
<FooterTemplate>
<asp:Button runat="server" text="Add" ID="btnAddVariant" CommandName="addVariant" CommandArgument='<%# Bind("ID") %>'/>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Variant" InsertVisible="True">
<ItemTemplate>
<asp:Label ID="lblVarietal" runat="server"
Text='<%# Bind("Name") %>'>
</asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" Width="240"/>
<FooterTemplate>
<asp:TextBox ID="NewVariant" runat="server"></asp:TextBox>
</FooterTemplate>
<FooterStyle Wrap="False"/>
</asp:TemplateField>
<asp:TemplateField HeaderText="Use">
<ItemTemplate>
<asp:CheckBox ID="cbUseVariant" runat="server"
Enabled="true"/>
</ItemTemplate>
<FooterTemplate>
<asp:CheckBox ID="cbUseNewVariant" runat="server"/>
</FooterTemplate>
<ItemStyle HorizontalAlign="Center"/>
<FooterStyle HorizontalAlign="Center"/>
</asp:TemplateField>
</Columns>
</asp:GridView>OnLoad:
的OnLoad：
protected override void OnLoad(EventArgs e)
{
try
{
base.OnLoad(e);
if (!IsPostBack)
{
gvVariants.DataSource = GetVariantTable();
gvVariants.DataBind();
}
}
catch (Exception exc) //Module failed to load
{
DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(this, exc);
}
}
代码隐藏中的RowDataBound：
protected void gvVariants_OnRowDataBound(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
String variantId= gvVariants.DataKeys[e.Row.RowIndex].Value.ToString();
GridView gvValues = e.Row.FindControl("gvValues") as GridView;
using (var ipv = new IMM_ProductVariantValuesController())
{
ipv.Gets(variantId,"IMM_ProductVariants_ID",pWhere: $"and (portal_id=-1 or portal_id={PortalId})");
ipv.LoadDatatable();
gvValues.DataSource = ipv.Datatable;
gvValues.DataBind();
}
}
}
protected void gvVariants_OnRowCommand(Object sender, GridViewCommandEventArgs e)
{
Response.Write("got here");
Response.End();
}
答案 0 :(得分：0)
有几个问题会导致问题。
“添加”按钮有onClick个事件，但您也在每个网格中使用onRowCommand。单击“添加”按钮时会触发三个事件（按钮单击，父网格行命令，嵌套网格行命令）。
看起来您正在使用全局变量VariantID。这适用于CommandArgument，但是如果您在页面的HTML中使用它，它仍然只包含最后添加的行的ID值。所以它有效，但不推荐。更好地使用像CommandArgument='<%# Bind("itemID") %>'
您使用“添加”按钮中VariantID属性中的CommandArgument错误。您使用CommandArgument="<%=VariantID%>"，因此命令参数是字符串<%=VariantID%>。您可以像CommandArgument='<%# VariantID %>'
您正在OnLoad(EventArgs e)上的try-catch块之外绑定网格。当出现错误时，它将使整个DotNetNuke页面崩溃，而不是触发ModuleLoadException。虽然这可以用于测试目的。
首先修复这些问题并查看是否有帮助。它在我的开发服务器上完成。
答案 1 :(得分：0)
这现在有效：
<%@ Control Language="C#" EnableViewState="False" ViewStateMode="Disabled" AutoEventWireup="False" CodeBehind="View.ascx.cs" Inherits="IMS.Modules.CreateMerchandise.View" %>
<style type="text/css">
body {
font-family: Arial;
font-size: 10pt;
}
.Grid td {
background-color: #A1DCF2;
color: black;
font-size: 10pt;
line-height: 200%
}
.Grid th {
background-color: #3AC0F2;
color: White;
font-size: 10pt;
line-height: 200%
}
.ChildGrid td {
background-color: #eee !important;
color: black;
font-size: 10pt;
line-height: 200%
}
.ChildGrid th {
background-color: #6C6C6C !important;
color: White;
font-size: 10pt;
line-height: 200%
}
</style>
<script type="text/javascript">
function SetID(id) {
document.getElementById("hfVariantID").value = id;
}
$("[src*=plus]")
.live("click",
function() {
$(this).closest("tr").after("<tr><td></td><td colspan = '999'>" + $(this).next().html() + "</td></tr>");
$(this).attr("src", "../images/ManageMerchandise/minus.png");
});
$("[src*=minus]")
.live("click",
function() {
$(this).attr("src", "../images/ManageMerchandise/plus.png");
$(this).closest("tr").next().remove();
});
</script>
<asp:UpdatePanel runat="server" ID="upVariants" UpdateMode="Conditional" ViewStateMode="Disabled" EnableViewState="False">
<ContentTemplate>
<asp:GridView ID="gvVariants" runat="server" AutoGenerateColumns="False" CssClass="Grid" DataKeyNames="ID" OnRowDataBound="gvVariants_OnRowDataBound" ShowFooter="True" EnableViewState="False" OnRowCommand="gvVariants_OnRowCommand">
<Columns>
<asp:TemplateField InsertVisible="False">
<ItemStyle HorizontalAlign="Center" Width="30"/>
<ItemTemplate>
<img alt="" style="cursor: pointer; height: 20px; width: 20px;" src="../images/ManageMerchandise/plus.png"/>
<asp:Panel ID="pnlValues" runat="server" Style="display: none" EnableViewState="False">
<asp:GridView ID="gvValues" runat="server" AutoGenerateColumns="False" OnRowDataBound="gvValues_OnRowDataBound" CssClass="ChildGrid" DataKeyNames="ID" ShowFooter="True" EnableViewState="False">
<Columns>
<asp:BoundField DataField="ID" Visible="False"/>
<asp:TemplateField ItemStyle-Width="15px">
<FooterTemplate>
<asp:Button runat="server" text="Add" ID="btnAddValue" OnClick="btnAddValue_Click" CommandName="AddValue" CommandArgument='<%# Bind("ID") %>'/>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField
HeaderText="Value"
InsertVisible="True"
ItemStyle-Width="150px">
<ItemTemplate>
<asp:Label ID="lblValue" runat="server"
Text='<%# Bind("VariantValue") %>'>
</asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox ID="NewValue" runat="server" Width="150"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Use">
<ItemTemplate>
<asp:CheckBox ID="cbUseVariantValue" runat="server"
Enabled="true"/>
</ItemTemplate>
<FooterTemplate>
<asp:CheckBox ID="cbUseNewVariantValue" runat="server"/>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</asp:Panel>
</ItemTemplate>
<FooterTemplate>
<asp:Button runat="server" text="Add" ID="btnAddVariant" CommandName="addVariant" OnClick="btnAddVariant_Click" CommandArgument='<%# Bind("ID") %>'/>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Variant">
<ItemTemplate>
<asp:Label ID="lblVarietal" runat="server"
Text='<%# Bind("Name") %>'>
</asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" Width="240"/>
<FooterTemplate>
<asp:TextBox ID="NewVariant" runat="server"></asp:TextBox>
</FooterTemplate>
<FooterStyle Wrap="False"/>
</asp:TemplateField>
<asp:TemplateField HeaderText="Use">
<ItemTemplate>
<asp:CheckBox ID="cbUseVariant" runat="server"
Enabled="true"/>
</ItemTemplate>
<FooterTemplate>
<asp:CheckBox ID="cbUseNewVariant" runat="server"/>
</FooterTemplate>
<ItemStyle HorizontalAlign="Center"/>
<FooterStyle HorizontalAlign="Center"/>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
<asp:HiddenField runat="server" ID="hfVariantID" ClientIDMode="Static"/>
代码隐藏：
/*
' Copyright (c) 2016 Indy Music Systems
' All rights reserved.
'
' THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
' TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
' THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
' CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
' DEALINGS IN THE SOFTWARE.
'
*/
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Web.UI.WebControls;
using DotNetNuke.Entities.Modules;
using DotNetNuke.Entities.Modules.Actions;
using DotNetNuke.Entities.Portals;
using DotNetNuke.Security;
using DotNetNuke.Services.Exceptions;
using DotNetNuke.Services.Localization;
using IMS.Model;
namespace IMS.Modules.CreateMerchandise
{
/// -----------------------------------------------------------------------------
/// <summary>
/// The View class displays the content
/// Typically your view control would be used to display content or functionality in your module.
/// View may be the only control you have in your project depending on the complexity of your module
/// Because the control inherits from CreateMerchandiseModuleBase you have access to any custom properties
/// defined there, as well as properties from DNN such as PortalId, ModuleId, TabId, UserId and many more.
/// </summary>
/// -----------------------------------------------------------------------------
public partial class View : CreateMerchandiseModuleBase, IActionable
{
public static readonly String StrPortalId =
PortalController.Instance.GetCurrentPortalSettings().PortalId.ToString();
public String curVariantId="";
public GridView gvStore;
public ModuleActionCollection ModuleActions
{
get
{
var actions = new ModuleActionCollection
{
{
GetNextActionID(), Localization.GetString("EditModule", LocalResourceFile), "", "", "",
EditUrl(), false, SecurityAccessLevel.Edit, true, false
}
};
return actions;
}
}
protected override void OnLoad(EventArgs e)
{
if (!IsPostBack)
{
gvVariants.DataSource = GetVariantTable(StrPortalId);
gvVariants.DataBind();
//Session["gvStore"] = gvVariants;
Session["gvStore"] = gvVariants.DataSource;
}
else
{
//gvVariants = (GridView)Session["gvStore"];
//gvVariants.DataSource = (DataTable)((GridView)Session["gvStore"]).DataSource;
gvVariants.DataSource = (DataTable)Session["gvStore"];
gvVariants.DataBind();
}
}
protected void gvVariants_OnRowDataBound(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
//curVariantId= gvVariants.DataKeys[e.Row.RowIndex].Value.ToString();
curVariantId = ((DataRowView) e.Row.DataItem)[0].ToString();
GridView gvValues = e.Row.FindControl("gvValues") as GridView;
using (var ipv = new IMM_ProductVariantValuesController())
{
ipv.Gets(curVariantId,"IMM_ProductVariants_ID",pWhere: $"and (portal_id=-1 or portal_id={PortalId})");
if (!ipv.Recordset.Any())
{
ipv.Recordset.Add(new IMM_ProductVariantValues()
{
ID=-1
});
}
ipv.LoadDatatable();
gvValues.DataSource = ipv.Datatable;
gvValues.DataBind();
}
}
}
protected void gvValues_OnRowDataBound(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (((DataRowView)e.Row.DataItem)[0].ToString() == "-1")
{
e.Row.Visible = false;
}
}
if (e.Row.RowType == DataControlRowType.Footer)
{
Button b = e.Row.FindControl("btnAddValue") as Button;
b.OnClientClick = "SetID('" +curVariantId+"')";
}
}
protected void btnAddValue_Click(object sender, EventArgs e)
{
GridViewRow row = (GridViewRow)((sender as Button).NamingContainer);
string myID = hfVariantID.Value;
TextBox txtNewValue = (TextBox)row.FindControl("NewValue");
using (var ipvv = new IMM_ProductVariantValuesController())
{
ipvv.Recordset.Add(new IMM_ProductVariantValues()
{
IMM_ProductVariants_ID = Convert.ToInt32(myID),
Portal_ID = Convert.ToInt32(StrPortalId),
VariantValue = txtNewValue.Text.Trim().TrimStart(',') //remove leading PostBack comma
});
ipvv.Inserts();
}
}
protected void btnAddVariant_Click(object sender, EventArgs e)
{
GridViewRow row = (GridViewRow)((sender as Button).NamingContainer);
TextBox txtNewValue = (TextBox)row.FindControl("NewVariant");
using (var ipv = new IMM_ProductVariantsController())
{
ipv.Recordset.Add(new IMM_ProductVariants()
{
Portal_ID = Convert.ToInt32(StrPortalId),
Name = txtNewValue.Text.Trim().TrimStart(',') //remove leading PostBack comma
});
ipv.Inserts();
}
}
protected void gvVariants_OnRowCommand(Object sender, GridViewCommandEventArgs e)
{
gvVariants.DataSource = GetVariantTable(StrPortalId);
gvVariants.DataBind();
Session["gvStore"] = gvVariants.DataSource;
}
}
}