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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());
 }

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
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