Ask Learn
Preview
Ask Learn is an AI assistant that can answer questions, clarify concepts, and define terms using trusted Microsoft documentation.
Please sign in to use Ask Learn.
Sign inDBNull.ToString Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns an empty string.
Overloads
| ToString() |
Returns an empty string (Empty). |
| ToString(IFormatProvider) |
Returns an empty string using the specified IFormatProvider. |
- Source:
- DBNull.cs
- Source:
- DBNull.cs
- Source:
- DBNull.cs
- Source:
- DBNull.cs
Returns an empty string (Empty).
public:
override System::String ^ ToString();public override string ToString();override this.ToString : unit -> stringPublic Overrides Function ToString () As StringReturns
An empty string (Empty).
See also
Applies to
.NET 10 and other versions
| 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 | 1.1, 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 |
- Source:
- DBNull.cs
- Source:
- DBNull.cs
- Source:
- DBNull.cs
- Source:
- DBNull.cs
Returns an empty string using the specified IFormatProvider.
public:
System::String ^ ToString(IFormatProvider ^ provider);public:
virtual System::String ^ ToString(IFormatProvider ^ provider);public string ToString(IFormatProvider provider);public string ToString(IFormatProvider? provider);override this.ToString : IFormatProvider -> stringPublic Function ToString (provider As IFormatProvider) As StringParameters
- provider
- IFormatProvider
The IFormatProvider to be used to format the return value.
-or-
null to obtain the format information from the current locale setting of the operating system.
Returns
An empty string (Empty).
Implements
See also
Applies to
.NET 10 and other versions
| 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 | 1.1, 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 |