DbConnection.Open Method
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When overridden in a derived class, opens a database connection with the settings specified by the ConnectionString.
public:
abstract void Open();C#
public abstract void Open();abstract member Open : unit -> unitPublic MustOverride Sub Open ()This method must be overridden with user-defined behavior. SqlConnection.Open will throw an exception if called again without first being closed.
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
| UWP | 10.0 |
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