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Total Hits: 457 | Today: 0
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Author: MSDN
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When you use DataSet column mapping in ADO.NET, an InvalidOperationException exception is thrown if the MissingMappingAction property is set to Error, and if the column mapping that you specify is missing....
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Total Hits: 153 | Today: 0
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Author: MSDN
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Output parameters do not appear to be initialized or return a wrong value when you run an ADO.NET command....
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Total Hits: 1992 | Today: 0
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Author: MSDN
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When you use the C# compiler (Csc.exe) to compile an ASP.NET resource, you may receive a compiler error message that is similar to one of the following error messages:
Compiler Error Message: CS1595: 'System.Collections.ArrayList' is defined in multiple places; using definition from 'c:\winnt\microsoft.net\framework\v1.0.3705\mscorlib.dll'...
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Total Hits: 471 | Today: 0
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Author: MSDN
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When you use ADO in the Microsoft .NET Framework with Component Object Model (COM) interop, ADO properties that formerly accepted either object references or string values now only support object references. As a result, when you try to set a property to a string value, an exception is thrown....
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Total Hits: 546 | Today: 0
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Author: MSDN
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When you attempt to assign images to a ColumnHeader control in a Windows Forms ListView control, the operation is unsuccessful....
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Total Hits: 634 | Today: 0
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Author: MSDN
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When you use DataReader to read a row, if you try to access columns in that row, you receive an error message that resembles the following:
System.InvalidOperationException: Invalid attempt to read from column ordinal '0'. With CommandBehavior.SequentialAccess, you may only read from column ordinal '2' or greater....
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Total Hits: 1222 | Today: 0
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Author: MSDN
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When you use the OleDbDataReader or SqlDataReader class, no RecordCount property exists to indicate how many records are being fetched....
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Total Hits: 416 | Today: 0
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Author: MSDN
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This article provides a list of known problems with the Common Language Runtime (CLR) Profiling Services....
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Total Hits: 174 | Today: 0
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Author: MSDN
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System.Xml.XmlSerializer does not serialize default values that are present in the XML schemas (XSD)....
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Total Hits: 191 | Today: 0
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Author: MSDN
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You have an enumeration in your Web service, but it is not used as a parameter or return type for any of the Web methods....
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Total Hits: 686 | Today: 0
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Author: MSDN
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When you browse to the URL of an XML Web service that returns a DataTable from one of its Web methods, you may receive the following error message:
System.Data.DataRelation cannot be serialized because it does not have a default public constructor....
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Total Hits: 642 | Today: 0
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Author: MSDN
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When you use a protocol other than Transmission Control Protocol/Internet Protocol (TCP/IP), SqlConnection.Open fails if you specify a port number other than 1433 to connect to an instance of Microsoft SQL Server....
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Total Hits: 573 | Today: 0
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Author: MSDN
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The Windows Forms TreeView control displays a hierarchy of nodes similar to the way that Windows Explorer displays folders in the left pane. With the Windows Forms TreeView control, the application cannot use a State image list to display a State icon. The State icon appears to the left of the icon that is displayed for a node in the control. This behavior differs from the behavior of the underlying Win32 TreeView control....
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Total Hits: 121 | Today: 0
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Author: MSDN
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This problem occurs in SQL Server 7.0 because, by design, you cannot run the Prepare method before you add parameters. This applies to most database systems....
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Total Hits: 151 | Today: 0
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Author: MSDN
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When you run an ADO.NET command, the output parameters may not be initialized, or they may return an incorrect value....
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