如何实现C＃的自定义服务器控件？ [英] How to implement a C# custom server control?

问题描述

我想实现使用上提供的 RowClickableGridView 类的自定义控件=htt​​p://stackoverflow.com/questions/686240/making-an -entire行可点击-IN-A-GridView控件>这个堆栈溢出帖子。这是我第一次尝试创建一个自定义服务器控件和遵循的这个MSDN演练。

I am trying to implement a custom control using a RowClickableGridView class provided on this Stack Overflow post. This is the first time I have tried to create a custom server control and followed steps laid out in this MSDN walkthrough.

我有 RowClickableGridView 类中的应用我的Web应用程序项目的\ _ code 目录中对 MyWebApplication.App \ _ code ，它编译，一个命名空间

I have the RowClickableGridView class in the App\_Code directory of my Web Application Project with a namespace of MyWebApplication.App\_Code, and it compiles.

我的问题是，的.aspx ，我试图用控制上不能识别标签preFIX页面。该页面还为 CC1之间的不支持的元素多次警告：GridViewRowClickable 标签。我以为我根据MSDN演练了一切就绪。

My problem is that the .aspx page that I am trying to use the control on does not recognize the tag prefix. The page also has numerous warnings for unsupported elements between the cc1:GridViewRowClickable tags. I thought I had everything in place according to the MSDN walkthrough.

<%@ Page Title="MyPage" Language="C#" MasterPageFile="~/MyMaster.master" AutoEventWireup="true" Inherits="MyPage" Codebehind="MyPage.aspx.cs" %>
<%@ Register TagPrefix="cc1" TagName="RowClickableGridView" Namespace="MyWebApplication.App_Code" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:MyConnectionString %>" SelectCommand="MySpName" SelectCommandType="StoredProcedure">
    </asp:SqlDataSource>
    <cc1:RowClickableGridView ID="GVW_test" runat="server" DataSourceID="SqlDataSource1">
        <HeaderStyle CssClass="ListTop" />
        <RowStyle CssClass="RowHighlight" />
        <Columns>
            <asp:BoundField HeaderText="ID" DataField="Atr_ID" SortExpression="Atr_ID" />
            <asp:BoundField HeaderText="Name" DataField="Atr_Name" SortExpression="Atr_Name" />
        </Columns>
        <EmptyDataTemplate>
            No Data
        </EmptyDataTemplate>
   </cc1:RowClickableGridView>
</asp:Content>

这是我在做什么什么错误或建议的任何想法，尝试下？

Any idea on what I am doing wrong or suggestions on what to try next?

推荐答案

我得到它的工作最后。我采取了不同的方法，但。

I got it to work finally. I took a different approach though.

1. 创建一个新的ASP.NET服务器控件项目
2. 复制类违约CS文件并重新命名的命名空间。
3. 添加默认标签preFIX行上述命名空间声明
   [总成：标签preFIX（myNameSpace对象，mycustomtag）]
4. 添加ToolBoxData行上面的类复制。
   [ToolboxData（＆LT; {0}：GridViewRowClickable RUNAT =服务器＆GT;＆LT; / {0}：GridViewRowClickable＆gt;中）]
5. 在建项目到DLL
6. 复制DLL到Web应用程序的bin目录
7. 引用的DLL中的Web应用程序项目
8. 添加控件工具箱中添加从DLL创建一个新的工具箱项
9. 将和从工具箱中拖放控制到aspx页面

1. Create a new ASP.NET Server Control Project
2. Copy class into default cs file and renamed namespace.
3. Add default TagPrefix to line above namespace declaration.
   [assembly: TagPrefix("mynamespace", "mycustomtag")]
4. Add ToolBoxData to line above class copied.
   [ToolboxData("<{0}:GridViewRowClickable runat=server></{0}:GridViewRowClickable>")]
5. Build project into dll
6. Copy dll to bin directory of Web Application
7. Reference dll in Web Application Project
8. Add controls to toolbox by adding creating a new toolbox item from the dll
9. Drag and drop control from toolbox into aspx page

这增加了相应的Register指令在aspx页面的顶部，并修复了所有我收到的警告。自动完成也可以在此情况下，也

This adds the appropriate Register directive at the top of the aspx page and fixed all the warnings I received. The auto complete also works in this case as well.

下面是code。

<%@ Page Title="" Language="C#" MasterPageFile="~/MyMaster.master" AutoEventWireup="true" Inherits="MyPage" Codebehind="MyPage.aspx.cs" %>
<%@ Register Assembly="GridViewRowClickable" Namespace="CustomServerControls" TagPrefix="MyTag" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:SqlDataSource ID="Sql_MyTable" runat="server" ConnectionString="<%$ ConnectionStrings:MyConnectionString %>"
        SelectCommand="spTbl_Select" SelectCommandType="StoredProcedure">
    </asp:SqlDataSource>
    <egcc:GridViewRowClickable ID="GridViewRowClickable_test" runat="server" 
        DataSourceID="Sql_MyTable" DataKeyNames="tbl_id"
        AllowSorting="True" AutoGenerateColumns="False" GridLines="None" PageSize="25" Width="100%"
        EnableRowClickSelection="true" RowClickCommand="Select" OnSelectedIndexChanged="GridViewRowClickable_test_OnSelectedIndexChanged">
        <Columns>
            <asp:BoundField HeaderText="ID" DataField="tbl_id" SortExpression="tbl_id" />
            <asp:BoundField HeaderText="Name" DataField="tbl_name" SortExpression="tbl_name" />
        </Columns>
        <EmptyDataTemplate>
            No Data.
        </EmptyDataTemplate>
    </egcc:GridViewRowClickable>
</asp:Content>

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