[debug] FormView not displaying data

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I'm running this code, on my laptop (Win XP SP 3/ASP.NET 3.5 SP1), and, the <asp:formview xmlns:asp="#unknown"> does not seem to render any data within my webpage.

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Articles.aspx.cs" Inherits="Articles" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <link href="StyleSheet.css" rel="stylesheet" type="text/css" />
    <title>@Jon's</title>
</head>
<body>
    <form id="form1" runat="server">
    <h1>@Jon's <img src="images/sofa.jpg" alt="logo"/> </h1 >
    <div style="float:left;width:122px">
        <p style="width: 122px; height: 663px; margin-top: 0px; margin-right: 0px;">
        <a href="About.aspx">About me</a> <br />
        <a href="Diary.aspx">My diary</a> <br />
        <a href="Articles.aspx">Articles</a> <br />
        <a href="Bookmarks.aspx">My bookmarks</a> <br />
        <a href="Promotions.aspx">Promotions</a> <br />
        <a href="Resume.aspx">My resume</a> <br />
        <a href="Warez.aspx">Filesharing</a> <br />
        </p>
      </div>
   <div>
   <asp:Calendar ID="calArticles" runat="server" BackColor="White"
    BorderColor="#999999" CellPadding="4" DayNameFormat="Shortest"
    Font-Names="Verdana" Font-Size="8pt" ForeColor="Black" Height="180px"
    Width="200px" onselectionchanged="calArticles_SelectionChanged">
    <SelectedDayStyle BackColor="#666666" Font-Bold="True" ForeColor="White" />
    <SelectorStyle BackColor="#CCCCCC" />
    <WeekendDayStyle BackColor="#4AA02C" />
    <TodayDayStyle BackColor="#CCCCCC" ForeColor="Black" />
    <OtherMonthDayStyle ForeColor="#808080" />
    <NextPrevStyle VerticalAlign="Bottom" />
    <DayHeaderStyle BackColor="#CCCCCC" Font-Bold="True" Font-Size="7pt" />
    <TitleStyle BackColor="#999999" BorderColor="Black" Font-Bold="True" />
</asp:Calendar>
   <asp:FormView ID="Envelope" runat="server" DataSourceID="SqlDataSource1"
            AllowPaging="True">
        <HeaderTemplate>
        </HeaderTemplate>
        <ItemTemplate>
        <p> <asp:TextBox runat="server" Width="1000" ReadOnly="true" ID="txtSubject"></asp:TextBox> </p>
        <p> <asp:TextBox runat="server" Height="300" Width="1000" ReadOnly="true" ID="txtBody" TextMode="MultiLine"></asp:TextBox>
        </ItemTemplate>
        </asp:FormView>
 <p> <asp:Button ID="btnFirst" runat="server" Text="|<" Enabled="True" />
    &nbsp;<asp:Button ID="btnPrev" runat="server" Text="<<" Enabled="True" />
    &nbsp;<asp:Button ID="btnNext" runat="server" Text=">>" Enabled="True" />
    &nbsp;<asp:Button ID="btnLast" runat="server" Text=">|" Enabled="True" />
    </p>
    <asp:Button ID="btnNew" runat="server" Text="New" />
    &nbsp;<asp:Button ID="btnSave" runat="server" Text="Save" />
    &nbsp;<asp:Button ID="btnRefresh" runat="server" Text="Refresh" />
    &nbsp;<asp:Button ID="btnDelete" runat="server" Text="Delete" Enabled="False" />
<p>
    <asp:TextBox ID="TextBox2" runat="server" Width="211px"></asp:TextBox>
    <asp:Button ID="btnSearch" runat="server" Text="Search" />

</p>
<p>
    <asp:Label ID="lblFooter" runat="server"></asp:Label>

</p>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
        ConnectionString="<%$ ConnectionStrings:couch_dbConnectionString %>"
        SelectCommand="SELECT [Timestamp], [Subject], [EntryText] FROM [Article]"></asp:SqlDataSource>
</div>
</form>
</body>
</html>

I have checked the SQL Statement generated within VS 2008 on SQL Server 2005 Management Studio and it works fine.

SQL

SELECT [Timestamp], [Subject], [EntryText]
FROM [Article] WHERE [Timestamp] >= '8/27/2010 12:00:00 AM' AND
[Timestamp] < (DATEADD(day, 1, [Timestamp]));

SQL Result

MSIL

2010-08-28 00:00:00.000 subject test
2010-08-28 00:00:00.000 subject 2   test 2

I had previously considered using XML files, however, I was told that it is not possible to append to the same xml file when writing it, so I decided to use a SQL Server database for my data. The <formview> had a similar problem, in that it was not rendering the items within the valid XML file, when flipping between page 1 and page 2.

:confused:

Posted 28-Aug-10 4:34am

jon-80

Updated 28-Aug-10 4:54am

Sandeep Mewara

v5

Add a Solution

2 solutions

Solution 2

Works as read only, thanks :)

<![CDATA[<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Articles.aspx.cs" Inherits="Articles" %>]]>


<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <link href="StyleSheet.css" rel="stylesheet" type="text/css" /> 
    <title>@Jon's</title>
</head>
<body>
    <form id="form1" runat="server">
    <h1>@Jon's <img src="images/sofa.jpg" alt="logo" /> </h1>
    <div style="float:left;width:122px">
        <p style="width: 122px; height: 663px; margin-top: 0px; margin-right: 0px;">
        <a href="About.aspx">About me</a> <br />
        <a href="Diary.aspx">My diary</a> <br />
        <a href="Articles.aspx">Articles</a> <br />
        <a href="Bookmarks.aspx">My bookmarks</a> <br />
        <a href="Promotions.aspx">Promotions</a> <br />
        <a href="Resume.aspx">My resume</a> <br />
        <a href="Warez.aspx">Filesharing</a> <br />
        </p>
      </div>
   <div>
   <asp:calendar id="calArticles" runat="server" backcolor="White" xmlns:asp="#unknown">
    BorderColor="#999999" CellPadding="4" DayNameFormat="Shortest" 
    Font-Names="Verdana" Font-Size="8pt" ForeColor="Black" Height="180px" 
    Width="200px" onselectionchanged="calArticles_SelectionChanged">
    <selecteddaystyle backcolor="#666666" font-bold="True" forecolor="White" />
    <selectorstyle backcolor="#CCCCCC" />
    <weekenddaystyle backcolor="#4AA02C" />
    <todaydaystyle backcolor="#CCCCCC" forecolor="Black" />
    <othermonthdaystyle forecolor="#808080" />
    <nextprevstyle verticalalign="Bottom" />
    <dayheaderstyle backcolor="#CCCCCC" font-bold="True" font-size="7pt" />
    <titlestyle backcolor="#999999" bordercolor="Black" font-bold="True" />
</asp:calendar>
   <asp:formview id="Envelope" runat="server" datasourceid="SqlDataSource1" xmlns:asp="#unknown">
            AllowPaging="True">
        <headertemplate>
        </headertemplate>
        <itemtemplate>
        <p> <asp:textbox runat="server" width="1000" readonly="true" id="txtSubject">Text='<%# Eval("Subject")%>'></asp:textbox> </p>
        <p> <asp:textbox runat="server" height="300" width="1000" readonly="true" id="txtBody" textmode="MultiLine">Text='<%# Eval("EntryText") %>'></asp:textbox> 
        </p></itemtemplate>
        </asp:formview>
 <p> <asp:button id="btnFirst" runat="server" text="|<" enabled="True" xmlns:asp="#unknown" />
     <asp:button id="btnPrev" runat="server" text="<<" enabled="True" xmlns:asp="#unknown" />
     <asp:button id="btnNext" runat="server" text=">>" enabled="True" xmlns:asp="#unknown" />
     <asp:button id="btnLast" runat="server" text=">|" enabled="True" xmlns:asp="#unknown" /> 
    </p>

    <asp:button id="btnNew" runat="server" text="New" xmlns:asp="#unknown" />
     <asp:button id="btnSave" runat="server" text="Save" xmlns:asp="#unknown" />
     <asp:button id="btnRefresh" runat="server" text="Refresh" xmlns:asp="#unknown" />
     <asp:button id="btnDelete" runat="server" text="Delete" enabled="False" xmlns:asp="#unknown" />
<p>
    <asp:textbox id="TextBox2" runat="server" width="211px" xmlns:asp="#unknown"></asp:textbox>
    <asp:button id="btnSearch" runat="server" text="Search" xmlns:asp="#unknown" />
    
    
</p>
<p>
    <asp:label id="lblFooter" runat="server" xmlns:asp="#unknown"></asp:label>
    
    
</p>
<asp:sqldatasource id="SqlDataSource1" runat="server" xmlns:asp="#unknown">
        ConnectionString="<%$ ConnectionStrings:couch_dbConnectionString %>" 
        SelectCommand="SELECT [Timestamp], [Subject], [EntryText] FROM [Article]"></asp:sqldatasource>
</div>
</form>
</body>
</html>

Posted 28-Aug-10 7:38am

jon-80

Updated 28-Aug-10 7:40am

v2

Comments

Al-Farooque Shubho 28-Aug-10 13:54pm

It should also work without the readonly="true" property.

jon-80 28-Aug-10 14:16pm

yeh, I'm still trying to figure out how to Edit, Save and Refresh the controls, because the textboxes are disappearing when I tried Editing...guess I need more research :)

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Al-Farooque Shubho · Accepted Answer · 2010-08-28T07:12:00

FormView is actually a Template based control (That means, you have to define which field to bind to which control inside the itemtemplate element.

I didn't run your code, but as I can see, you are not binding your TextBox controls (Inside the FormView's ItemTemplate section) with any data using the Bind() Data binding expression. This is the main reason you are not getting any data shown in the UI (Assuming that the other codes are OK).

Here is how to do it (This text box is being bound with the EntryText field)

<asp:TextBox runat="server" Width="1000" Text='<%# Bind("EntryText") %>' ReadOnly="true" ID="txtSubject"></asp:TextBox>

You can have a look here for some FormView example : http://quickstarts.asp.net/QuickStartv20/aspnet/doc/ctrlref/data/formview.aspx[^]