ContainsKey Method (TdQueryBand)

Indicates whether the key exists as a Query Band.

Syntax

'Declaration
 
Public Function ContainsKey( _
   ByVal key As String _
) As Boolean

'Usage
 
Dim instance As TdQueryBand
Dim key As String
Dim value As Boolean
 
value = instance.ContainsKey(key)

public bool ContainsKey( 
   string key
)

public:
bool ContainsKey( 
   String^ key
)

true a Query Band exists that has the , otherwise false.

Exceptions

Exception	Description
System.ArgumentNullException	The key is null.

Requirements

Target Platforms: Windows 8.1, Windows 10, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019