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The Problem is with your GenericLaborDataSource . . . you have the wrong type.<br />
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Change it from a ListItemCollection to a SqlDataSource.<br />
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See this:<br />
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<a href="http://stackoverflow.com/questions/805162/asp-net-drop-down-list-and-data-source-created-dynamically" rel="ugc">http://stackoverflow.com/questions/805162/asp-net-drop-down-list-and-data-source-created-dynamically</a>
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The Problem is with your GenericLaborDataSource . . . you have the wrong type.

Change it from a ListItemCollection to a SqlDataSource.



See this:

http://stackoverflow.com/questions/805162/asp-net-drop-down-list-and-data-source-created-dynamically [http://stackoverflow.com/questions/805162/asp-net-drop-down-list-and-data-source-created-dynamically]

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I get the following error:<br />
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Parser Error<br />
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Parser Error Message: System.Web.UI.WebControls.<wbr />ListItemCo<wbr />llection must have items of type 'System.Web.UI.WebControls<wbr />.ListItem'<wbr />. 'asp:DropDownList' is of type 'System.Web.UI.WebControls<wbr />.DropDownL<wbr />ist'.<br />
<br />
The error comes from the following code:<br />
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&lt;asp:DropDownList ID=&quot;GenericTypeBox&quot; runat=&quot;server&quot; <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; DataSourceID=&quot;GenericLabor<wbr />DataSource<wbr />&quot; DataTextField=&quot;code_value_<wbr />desc&quot; <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; DataValueField=&quot;code_value<wbr />&quot; Visible=&quot;False&quot;&gt;
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I get the following error:

Parser Error

Parser Error Message: System.Web.UI.WebControls.ListItemCollection must have items of type 'System.Web.UI.WebControls.ListItem'. 'asp:DropDownList' is of type 'System.Web.UI.WebControls.DropDownList'.

The error comes from the following code:

<asp:DropDownList ID="GenericTypeBox" runat="server" 
                                    DataSourceID="GenericLaborDataSource" DataTextField="code_value_desc" 
                                    DataValueField="code_value" Visible="False">

ASP.NET error with DropDownList

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ASP.NET

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.