如何解决此错误： - 创建控件时出错 - gridview1。服务器标签格式不正确 [英] How do I solve this error :- error creating control - gridview1. The server tag is not well formed

问题描述

我只是想让我的gridview可编辑，这将填充数据库中的数据。当我的程序启动时，它将连接到数据库并使用数据填充gridview。现在我想编辑其中的数据。我不知道我在做什么错误，因为我在visual studio ERROR的设计视图中遇到此错误： - 创建控件时出错 - GridView1。服务器标签格式不正确。



查看标签并告诉我我在哪里犯错误。



我尝试过：



.aspx： -

 <％@     Page    标题  =    语言  =  C＃    MasterPageFile   = 〜/ AdminHome / AdminMainPage.master    AutoEventWireup   =  true    CodeFile   =  questions.aspx.cs   继承  =  AdminHome_questions   ％>  
 
 <   asp：Content     ID   =  Content1    ContentPlaceHolderID   =  head    Runat   = 服务器 >  
 <   / asp：Content  >  
 <   asp：内容    ID   =  Content2    ContentPlaceHolderID   =  ContentPlaceHolder1    Runat   = 服务器  >  
 
 <   asp：GridView     ID   =  GridView1   宽度  =  100％ < span class =code-attribute>   runat   =  server    AutoGenerateColumns     =  false  
   
   AllowPaging     =  true    PageSize     =  10     字体名称    =  Arial  
   
  字体大小    =  11pt    AlternatingRowStyle-BackColor     = ＃C2D69B    
   
   HeaderStyle-BackColor     = 绿色      OnPageIndexChanging     =  OnPaging >  
 <  列 >  
 <   asp：TemplateField     ControlStyle-Width   =  100％    HeaderText   = 问题 >  
 
 
 <   ItemTemplate  >  
 
 
 <   asp：表    runat   =  server   宽度  =  100％ >  
 
 <   asp：TableRow  < span class =code-attribute>   width   =  100％ >  
 <   asp：TableCell  >  
 <％ #Eval（ 描述）％>  <   / asp：TableCell  >  
 < ;   / asp：TableRow  >  
 <   asp：TableRow    宽度  =  100％ >  
 <   asp：TableCell  >  
 <％ #Eval（ 问题）％>  <   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   asp：TableRow    >  
 <   asp：TableCell  >  
 <％ #Eval（  Option1）< span class =code-pagedirective>％>  <   / asp：TableCell  >  
 <   asp：TableCell  > ;  
 <％ #Eval（  Option2）％>  <   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   asp：TableRow     width   =  100％ >  
 <   asp：TableCell  >  
 <％ #Eval（  Option3）％>  <   / asp：TableCell  >  
 <   asp：TableCell  >  
 <％ #Eval（  Option4）％>  <   / as p：TableCell  >  
 <   / asp：TableRow  >  
 <   asp：TableRow     width   =  100％ >  
 <   asp：TableCell  >  
 < span class =code-pagedirective><％ #Eval（  CorrectAns ）％>  <   / asp：TableCell  >  
 <   / asp：TableRow   >  
 <   asp：TableRow     width   =  100％  >  
 <   asp：TableCell  >  
 <％ #Eval（ 说明）％>  <   / asp：TableCell  >  
 &l t;   / asp：TableRow  >  
 <   / asp：表 >  
 
 
 <   / ItemTemplate  >  
 <   EditItemTemplate  > ;  
 <   asp：表    runat   =  server   宽度  =  100％ >  
 
 <   asp：TableRow     width   =  100％ >  
 <   asp：TableCell  >  
 <   asp：TextBox     runat   = 服务器    text   =  <％ #Eval（ 描述）％>  >  <   / asp：TextBox  >  <   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   asp：TableRow     width   =  100 ％ >  
 <   asp：TableCell  >  
 <   asp：TextBox     runat   =  server    text   =  <％ #Eval（ 问题 ）％>  >  <   / asp：TextBox  >  <   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   asp ：TableRow    >  
  <   asp：TableCell  >  
 <   asp：TextBox     runat   =  server    text   =  <％ #Eval（ 问题）％>  >  <   / asp：TextBox  >  <   / asp：TableCell  >  
 <   asp：TableCell  >  
 <   asp：TextBox     runat   =  server    text   =  <％ #Eval（  Option2）％>  >  <   / asp：TextBox  >  <   / asp：TableCell  >  
 <   / asp：TableRow  >  
 < ;   asp：TableRow     width   =  100％ >  
 <   asp：TableCell  >  
 <   asp：TextBox     runat   =  server    text   =  <％ #Eval（  Option3）％>  >  <   / asp：TextBox  >  <   / asp：TableCell  >  
 <   asp：TableCell  >  
 <   asp：TextBox     runat   =  server    text   =  < span class =code-pagedirective><％ #Eval（  Option4 ）％>  >  < ;   / asp：TextBox  >  < ;   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   asp：TableRow     width   =  100％ >  
 <   asp：TableCell  >  
 <  < span class =code-leadattribute> asp：TextBox     runat   =  server    text   =  <％＃ Eval（  CorrectAns）％>  >  < span class =code-keyword><   / asp：TextBox  >  < span class =code-keyword><   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   asp：TableRow     width   =  100％ >  
 <   asp： TableCell  >  
 <   asp：TextBox     runat   =  server    text   =  < span class =code-pagedirective><％ #Eval（ 说明 ）％>  >  < ;   / asp：TextBox  >  < ;   / asp：TableCell  >  
 <   / asp：TableRow  >  
 <   / asp：Table  >  
 <   / EditItemTemplate  >  
 <   / asp：TemplateField  >  
 
 
 <   asp：TemplateField     ControlStyle-Width   =  100％ >  
 
 
 <   HeaderTemplate  >  
部分
 &l t;   asp：DropDownList     runat   =  server    OnSelectedIndexChanged     =  SectionChanged    AutoPostBack     =  true  
   
                        < span class =code-attribute>   AppendDataBoundItems     =  true >  
 <   asp：ListItem    文字    =  ALL   值    =  ALL >  <   / asp：ListItem  >  
 <   asp：ListItem    文本    = 前10名   值    =  10 >  <   / asp：ListItem  >  
 
 <   / asp：DropDownList  >  
 <   / HeaderTemplate  >  
 <   ItemTemplate  >  
 <％ #Eval（  SectionName）％>  
 <   / ItemTemplate  >  
 <   EditItemTemplate  >  
 <   asp： TextBox     ID   =  txtPageDesc    runat   = 服务器    TextMode   =  MultiLine    行  = < span class =code-keyword> 10   列 =\"50\" 
  
  
  
                                 Text='<%# Eval(\"SectionName\") %>'></asp:TextBox> 
 </EditItemTemplate> 
 </asp:TemplateField> 
  
     </Columns> 
         </asp:GridView> 
  
 </asp:Content>

解决方案

< blockquote>As digimanus said in comments, you need to narrow down where the problem is. You can do this pretty fast. Just remove sections until you find the one. Then fix it. Pretty simple.

A silly mistake I did in the code due to which it is showing error.



While binding data to textbox I wrote text=\"<%# Eval(\"Description\")%>\" instead of writing text=’<%# Eval(\"Description\")%>’



Instead of \"\" write ’’.



Same for all TextBox.

I'm just trying to make my gridview editable, which will be filled with data from the database. When my program starts, it will connect to the database and fill the gridview with data. Now i want to edit the data in it. I don't know what mistake I am doing due to which I am get this error in design view of visual studio ERROR:- Error creating control - GridView1. The server tag is not well formed.

Have a look at the tag and show me where I am making mistake.

What I have tried:

.aspx:-

<%@ Page Title="" Language="C#" MasterPageFile="~/AdminHome/AdminMainPage.master" AutoEventWireup="true" CodeFile="questions.aspx.cs" Inherits="AdminHome_questions" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

    <asp:GridView ID="GridView1" Width="100%" runat="server" AutoGenerateColumns = "false"

AllowPaging = "true" PageSize = "10"  Font-Names = "Arial"

Font-Size = "11pt" AlternatingRowStyle-BackColor = "#C2D69B" 

HeaderStyle-BackColor = "green"  OnPageIndexChanging = "OnPaging">
<Columns>
    <asp:TemplateField ControlStyle-Width="100%" HeaderText="Questions">
        

        <ItemTemplate>
            

            <asp:Table runat="server" Width="100%">
               
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <%# Eval("Description") %></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <%# Eval("Question") %></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow >
                    <asp:TableCell>
                        <%# Eval("Option1") %></asp:TableCell>
                    <asp:TableCell>
                        <%# Eval("Option2") %></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <%# Eval("Option3") %></asp:TableCell>
                    <asp:TableCell>
                        <%# Eval("Option4") %></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <%# Eval("CorrectAns") %></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <%# Eval("Explanation") %></asp:TableCell>
                </asp:TableRow>
            </asp:Table>
                    

        </ItemTemplate>
        <EditItemTemplate>
            <asp:Table runat="server" Width="100%">
               
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Description")%>"></asp:TextBox> </asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Question") %>"></asp:TextBox></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow >
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Question") %>"></asp:TextBox></asp:TableCell>
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Option2") %>"></asp:TextBox></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Option3") %>"></asp:TextBox></asp:TableCell>
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Option4") %>"></asp:TextBox></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("CorrectAns") %>"></asp:TextBox></asp:TableCell>
                </asp:TableRow>
                <asp:TableRow width="100%">
                    <asp:TableCell>
                        <asp:TextBox runat="server" text="<%# Eval("Explanation") %>"></asp:TextBox></asp:TableCell>
                </asp:TableRow>
            </asp:Table>
        </EditItemTemplate>
    </asp:TemplateField>


<asp:TemplateField ControlStyle-Width="100%">
        

        <HeaderTemplate>
Sections 
<asp:DropDownList runat="server" OnSelectedIndexChanged = "SectionChanged" AutoPostBack = "true"

            AppendDataBoundItems = "true">
                 <asp:ListItem Text = "ALL" Value = "ALL"></asp:ListItem>
            <asp:ListItem Text = "Top 10" Value = "10"></asp:ListItem>

             </asp:DropDownList>
</HeaderTemplate>
<ItemTemplate>
<%# Eval("SectionName") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtPageDesc" runat="Server" TextMode="MultiLine" Rows="10" Columns="50"



                                Text='<%# Eval("SectionName") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>

    </Columns>
        </asp:GridView>

</asp:Content>

解决方案

As digimanus said in comments, you need to narrow down where the problem is. You can do this pretty fast. Just remove sections until you find the one. Then fix it. Pretty simple.

A silly mistake I did in the code due to which it is showing error.

While binding data to textbox I wrote text="<%# Eval("Description")%>" instead of writing text='<%# Eval("Description")%>'

Instead of "" write ''.

Same for all TextBox.

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