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BindingContext.Contains Method (Object, String)

Gets a value indicating whether the BindingContext contains the BindingManagerBase associated with the specified data source and data member.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public bool Contains(
	Object dataSource,
	string dataMember
)

Parameters

dataSource
Type: System.Object
An Object that represents the data source.
dataMember
Type: System.String
The information needed to resolve to a specific BindingManagerBase.

Return Value

Type: System.Boolean
true if the BindingContext contains the specified BindingManagerBase; otherwise, false.

See the Binding class for a list of possible data sources and for information about creating bindings between controls and data sources.

See the Item property for information about returning a BindingManagerBase using a data source and data member.

The following code example uses the Contains method to test whether a specific BindingManagerBase exists before attempting to get it through the Item property.


private void TryContainsDataMember(DataSet myDataSet){
    bool trueorfalse;
    trueorfalse = this.BindingContext.Contains(myDataSet,"Suppliers");
    Console.WriteLine(trueorfalse.ToString());
 }



.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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