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ADO.NET in a Nutshell
book

ADO.NET in a Nutshell

by Matthew MacDonald, Bill Hamilton
April 2003
Beginner to intermediate
620 pages
21h 48m
English
O'Reilly Media, Inc.
Content preview from ADO.NET in a Nutshell

Name

OleDbType [OLE DB only]

Synopsis


OleDbType oleDbType = Parameter.OleDbType

Parameter.OleDbType = OleDbType

Specifies the OLE DB data type of the parameter, using the OleDbType enumeration in the System.Data.OleDb namespace. The value of the Parameter is converted into this type before it is passed to the data source. The default is a DbType.VarWChar, a variable length string of Unicode characters.

Example

The following code snippet sets the Parameter.OleDbType property and then examines the linked DbType. In this case, the linked DbType value is DbType.Int32.

param.OleDbType = OleDbType.Integer;

Console.WriteLine(param.DbType.ToString());

Notes

Every OleDbParameter class includes a DbType property and a provider-specific OleDbType property. These two properties are linked. When you set the OleDbType property, the DbType is adjusted to use a compatible type and vice versa.

For more information about valid OLE DB data types and their mappings to .NET framework types, see Appendix A.

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Publisher Resources

ISBN: 0596003617Errata Page