我已经使用Visual Web Developer很长一段时间了，除非有这个特定的网站和页面，否则从未发生过这种情况。这有点奇怪，我不知道为什么，但我有一个页面包含一个列表视图与数据绑定到它。每当我在更改后的几秒钟内在设计模式下编辑页面布局时，会弹出一个错误，指出“可视化Web开发人员遇到问题需要关闭”。这仅在编辑一个特定页面时发生，我在其他页面上有列表视图，但在编辑任何其他页面时从未遇到此错误。我不认为这个页面和其他页面之间有任何明显的差异。有没有人有任何关于为什么会这样的建议？我会包含代码，虽然我不知道代码端会导致什么...
<%@ Page Language="VB" AutoEventWireup="false" MaintainScrollPositionOnPostback="true" MasterPageFile="~/Site.master" CodeFile="Equipment_Details.aspx.vb" Inherits="Equipment_Details" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<style type="text/css">
.thumbnails img { /*thumbnails is the name of style class for <img> tag.*/
height: 80px;
border: 4px solid #555; /*border around the thumbnail is 4 pixel wide and color used is the one with 555 color code. */
padding: 1px; /* amount of space left between the image edge and it's border */
margin: 0 10px 10px 0; /* amount of space left between a border and the image or any content around it. */
}
.thumbnails img:hover {
border: 4px solid #00ccff;
cursor:pointer;
}
.style1
{
height: 304px;
}
.style2
{
height: 44px;
}
.style3
{
height: 304px;
width: 531px;
}
.style4
{
height: 44px;
width: 531px;
}
</style>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<html><div class="gallery" align="center"></html>
<html>
<asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1"
Width="100%">
<EditItemTemplate>
Picture:
<asp:TextBox ID="PictureTextBox" runat="server" Text='<%# Bind("Picture") %>' />
<br />
Title:
<asp:TextBox ID="TitleTextBox" runat="server" Text='<%# Bind("Title") %>' />
<br />
Description:
<asp:TextBox ID="DescriptionTextBox" runat="server"
Text='<%# Bind("Description") %>' />
<br />
Location:
<asp:TextBox ID="LocationTextBox" runat="server"
Text='<%# Bind("Location") %>' />
<br />
Price:
<asp:TextBox ID="PriceTextBox" runat="server" Text='<%# Bind("Price") %>' />
<br />
Picture2:
<asp:TextBox ID="Picture2TextBox" runat="server"
Text='<%# Bind("Picture2") %>' />
<br />
Picture3:
<asp:TextBox ID="Picture3TextBox" runat="server"
Text='<%# Bind("Picture3") %>' />
<br />
Picture4:
<asp:TextBox ID="Picture4TextBox" runat="server"
Text='<%# Bind("Picture4") %>' />
<br />
Picture5:
<asp:TextBox ID="Picture5TextBox" runat="server"
Text='<%# Bind("Picture5") %>' />
<br />
Picture6:
<asp:TextBox ID="Picture6TextBox" runat="server"
Text='<%# Bind("Picture6") %>' />
<br />
Horsepower:
<asp:TextBox ID="HorsepowerTextBox" runat="server"
Text='<%# Bind("Horsepower") %>' />
<br />
Usage:
<asp:TextBox ID="UsageTextBox" runat="server" Text='<%# Bind("Usage") %>' />
<br />
Harrow:
<asp:TextBox ID="HarrowTextBox" runat="server" Text='<%# Bind("Harrow") %>' />
<br />
Serial_Number:
<asp:TextBox ID="Serial_NumberTextBox" runat="server"
Text='<%# Bind("Serial_Number") %>' />
<br />
Fold:
<asp:TextBox ID="FoldTextBox" runat="server" Text='<%# Bind("Fold") %>' />
<br />
Depth_Control:
<asp:TextBox ID="Depth_ControlTextBox" runat="server"
Text='<%# Bind("Depth_Control") %>' />
<br />
<asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True"
CommandName="Update" Text="Update" />
<asp:LinkButton ID="UpdateCancelButton" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</EditItemTemplate>
<InsertItemTemplate>
Picture:
<asp:TextBox ID="PictureTextBox" runat="server" Text='<%# Bind("Picture") %>' />
<br />
Title:
<asp:TextBox ID="TitleTextBox" runat="server" Text='<%# Bind("Title") %>' />
<br />
Description:
<asp:TextBox ID="DescriptionTextBox" runat="server"
Text='<%# Bind("Description") %>' />
<br />
Location:
<asp:TextBox ID="LocationTextBox" runat="server"
Text='<%# Bind("Location") %>' />
<br />
Price:
<asp:TextBox ID="PriceTextBox" runat="server" Text='<%# Bind("Price") %>' />
<br />
Picture2:
<asp:TextBox ID="Picture2TextBox" runat="server"
Text='<%# Bind("Picture2") %>' />
<br />
Picture3:
<asp:TextBox ID="Picture3TextBox" runat="server"
Text='<%# Bind("Picture3") %>' />
<br />
Picture4:
<asp:TextBox ID="Picture4TextBox" runat="server"
Text='<%# Bind("Picture4") %>' />
<br />
Picture5:
<asp:TextBox ID="Picture5TextBox" runat="server"
Text='<%# Bind("Picture5") %>' />
<br />
Picture6:
<asp:TextBox ID="Picture6TextBox" runat="server"
Text='<%# Bind("Picture6") %>' />
<br />
Horsepower:
<asp:TextBox ID="HorsepowerTextBox" runat="server"
Text='<%# Bind("Horsepower") %>' />
<br />
Usage:
<asp:TextBox ID="UsageTextBox" runat="server" Text='<%# Bind("Usage") %>' />
<br />
Harrow:
<asp:TextBox ID="HarrowTextBox" runat="server" Text='<%# Bind("Harrow") %>' />
<br />
Serial_Number:
<asp:TextBox ID="Serial_NumberTextBox" runat="server"
Text='<%# Bind("Serial_Number") %>' />
<br />
Fold:
<asp:TextBox ID="FoldTextBox" runat="server" Text='<%# Bind("Fold") %>' />
<br />
Depth_Control:
<asp:TextBox ID="Depth_ControlTextBox" runat="server"
Text='<%# Bind("Depth_Control") %>' />
<br />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True"
CommandName="Insert" Text="Insert" />
<asp:LinkButton ID="InsertCancelButton" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</InsertItemTemplate>
<ItemTemplate>
<asp:Panel ID="Panel2" runat="server" BackColor="White" style="margin-top: 0px">
<table style="width:100%; margin-top: 1px;">
<tr>
<td class="style1">
</td>
<td align="left" class="style3">
<asp:HyperLink ID="HyperLink1" runat="server" Font-Size="Medium"
Font-Underline="True" ForeColor="Black"
NavigateUrl="~/Pre-Owned_Equipment.aspx"><<Back To Equipment</asp:HyperLink>
<asp:Image ID="Image5" runat="server" BorderWidth="1px" Height="500px"
ImageUrl='<%# Bind("Picture") %>' style="margin-top: 10px; margin-right: 0px;"
Width="700px" />
</td>
<td align="left" class="style1">
<br />
<asp:Panel ID="Panel1" runat="server" Height="500px" ScrollBars="Vertical"
style="margin-left: 6px" Width="175px">
<asp:ImageButton ID="ImageButton6" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture") %>' onclick="ImageButton6_Click"
style="margin-top: 0px" Width="150px" />
<asp:ImageButton ID="ImageButton1" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture2") %>' onclick="ImageButton1_Click" Width="150px" />
<asp:ImageButton ID="ImageButton2" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture3") %>' onclick="ImageButton2_Click" Width="150px" />
<asp:ImageButton ID="ImageButton3" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture4") %>' onclick="ImageButton3_Click" Width="150px" />
<asp:ImageButton ID="ImageButton4" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture5") %>' onclick="ImageButton4_Click" Width="150px" />
<asp:ImageButton ID="ImageButton5" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture6") %>' onclick="ImageButton5_Click" Width="150px" />
<asp:ImageButton ID="ImageButton7" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture7") %>' onclick="ImageButton7_Click" Width="150px" />
<asp:ImageButton ID="ImageButton8" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture8") %>' onclick="ImageButton8_Click" Width="150px" />
<asp:ImageButton ID="ImageButton9" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture9") %>' onclick="ImageButton9_Click" Width="150px" />
<asp:ImageButton ID="ImageButton10" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture10") %>' onclick="ImageButton10_Click" Width="150px" />
<asp:ImageButton ID="ImageButton11" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture11") %>' onclick="ImageButton11_Click" Width="150px" />
<asp:ImageButton ID="ImageButton12" runat="server" Height="100px"
ImageUrl='<%# Eval("Picture12") %>' onclick="ImageButton12_Click" Width="150px" />
</asp:Panel>
</td>
</tr>
<tr>
<td class="style2">
</td>
<td align="left" class="style4">
<asp:Label ID="Label4" runat="server" Font-Bold="True" Font-Size="X-Large"
ForeColor="Black" Text="Title: "></asp:Label>
<asp:Label ID="Label1" runat="server" Font-Size="X-Large"
Text='<%# Eval("Title") %>' ForeColor="Black"></asp:Label>
</td>
<td class="style2">
</td>
</tr>
<tr>
<td class="style2">
</td>
<td align="left" class="style4">
<asp:Label ID="Label5" runat="server" Font-Bold="True" Font-Size="Large"
Text="Price:" ForeColor="Black"></asp:Label>
<asp:Label ID="Label6" runat="server" ForeColor="Black"
Text='<%# bind("Price") %>'></asp:Label>
</td>
<td class="style2">
</td>
</tr>
<tr>
<td class="style2">
</td>
<td align="left" class="style4">
<asp:Label ID="Label3" runat="server" Font-Bold="True" Font-Size="Medium"
ForeColor="Black" Text="Description: "></asp:Label>
<asp:Label ID="Label2" runat="server" Font-Size="Medium" ForeColor="Black"
Text='<%# Eval("Description") %>'></asp:Label>
</td>
<td class="style2">
</td>
</tr>
</table>
<br/></html>
</div></asp:Panel>
</ItemTemplate>
</asp:FormView>
</div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:Sprayer_Parts_CatalogConnectionString %>"
SelectCommand="SELECT Picture, Title, Description, Location, Price, Picture2, Picture3, Picture4, Picture5, Picture6, Horsepower, Usage, Harrow, Serial_Number, Fold, Depth_Control, Picture7, Picture8, Picture9, Picture10, Picture11, Picture12 FROM Used_Equipment WHERE (Title = @Title)">
<SelectParameters>
<asp:QueryStringParameter Name="Title" QueryStringField="Title" />
</SelectParameters>
</asp:SqlDataSource>
</asp:Content>