David Sceppa's Microsoft ADO NET. PDF

By David Sceppa

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NET ... ToString()); You can build a fairly simple application that uses the GetOleDbSchemaÂ−Table method to display schema information about your database (tables, views, stored procedures, and so forth), much like Server Explorer does. 39 40 The GetOleDbSchemaTable method relies on functionality in the OLE DB provider that your OleDbConnection is using. Not all OLE DB providers support all schema methods. If you request a schema that your OLE DB provider doesnâ t support, youâ ll throw a trappable exception.

Table 3-1Â Â Commonly Used Properties of the OleDbConnection Object Property Data Type ConnectionString String ConnectionTimeoutInt32 Database 44 String Description Controls how the OleDbConnection object will connect to your data source Specifies how long, in seconds, the OleDbConnection will try to connect to your data source (read-only) Returns the name of the database you are, or will be, connected to (read-only) 45 Returns the location of the database you are, or will be, connected to (read-only) Returns the name of the OLE DB provider the OleDbConnection will use Provider String to connect to your data source (read-only) ServerVersion String Returns the version of your data source (read-only) Indicates the current state of the OleDbConnection (open or closed) State ConnectionState (read-only) ConnectionString Property The ConnectionString property controls how the Connection object will attempt to connect to your data source.

You can select the ConnectionString property in the Properties window and type a value for the property by hand. NET for a little help. You can select the ConnectionString property in the Properties window and view a drop-down list of available connections from Server Explorer. ) At the end of the list, youâ ll see a entry. Select this entry, and youâ ll launch the Data Link dialog box. Using the New Connection at Run Time Now that weâ ve created a new connection at design time, letâ s use it at run time.

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Microsoft ADO NET. by David Sceppa


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