من كد بالا را امتحان كردم اما چند دستور زير خطا مي دادند
asp:SqlDataSource
DataSourceID
SelectParameters
asp:ControlParameter
اين هم از كد من
[ltr]<%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm1.aspx.vb" Inherits="MASP.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" content="Visual Basic .NET 7.1">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="form1" runat="server">
<div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ Connectionstrings:MyCon %>"
SelectCommand="Select * from ArticleCategory"></asp:SqlDataSource>
</div>
<asp:dropDownList ID="CategoryList" runat="server"
DataSourceID="SqlDataSource1" DataTextField="Name" DataValueField="ID">
</asp:dropDownList>
<br />
<br />
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ Connectionstrings:MyCon %>"
SelectCommand="Select * from article where CategoryID=@CID">
<SelectParameters>
<asp:ControlParameter ControlID="CategoryList" Name="CID" PropertyName="SelectedValue" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:dropDownList ID="ArtilceList" runat="server" DataSourceID="SqlDataSource2"
DataTextField="Title" DataValueField="ID">
</asp:dropDownList>
</form>
</body>
</HTML>[/ltr]
