---
title: "How to: Determine if a Data Format is Present in a Data Object"
ms.date: "03/30/2017"
dev_langs: 
  - "csharp"
  - "vb"
helpviewer_keywords: 
  - "DataFormats class [WPF]"
  - "drag-and-drop [WPF], data formats present"
  - "data formats [WPF], determining if present"
ms.assetid: e487a454-c9fc-4e53-aeaa-c458d059ad4c
---
# How to: Determine if a Data Format is Present in a Data Object
The following examples show how to use the various <xref:System.Windows.DataObject.GetDataPresent%2A> method overloads to query whether a particular data format is present in a data object.  
  
## Example  
  
### Description  
 The following example code uses the <xref:System.Windows.DataObject.GetDataPresent%28System.String%29> overload to query for the presence of a particular data format by descriptor string.  
  
### Code  
 [!code-csharp[DragDrop_DragDropMiscCode#_DragDrop_QueryDataFormats_String](~/samples/snippets/csharp/VS_Snippets_Wpf/DragDrop_DragDropMiscCode/CSharp/Window1.xaml.cs#_dragdrop_querydataformats_string)]
 [!code-vb[DragDrop_DragDropMiscCode#_DragDrop_QueryDataFormats_String](~/samples/snippets/visualbasic/VS_Snippets_Wpf/DragDrop_DragDropMiscCode/visualbasic/window1.xaml.vb#_dragdrop_querydataformats_string)]  
  
## Example  
  
### Description  
 The following example code uses the <xref:System.Windows.DataObject.GetDataPresent%28System.Type%29> overload to query for the presence of a particular data format by type.  
  
### Code  
 [!code-csharp[DragDrop_DragDropMiscCode#_DragDrop_QueryDataFormats_Type](~/samples/snippets/csharp/VS_Snippets_Wpf/DragDrop_DragDropMiscCode/CSharp/Window1.xaml.cs#_dragdrop_querydataformats_type)]
 [!code-vb[DragDrop_DragDropMiscCode#_DragDrop_QueryDataFormats_Type](~/samples/snippets/visualbasic/VS_Snippets_Wpf/DragDrop_DragDropMiscCode/visualbasic/window1.xaml.vb#_dragdrop_querydataformats_type)]  
  
## Example  
  
### Description  
 The following example code uses the <xref:System.Windows.DataObject.GetDataPresent%28System.String%2CSystem.Boolean%29> overload to query for data by descriptor string, and specifying how to treat auto-convertible data formats.  
  
### Code  
 [!code-csharp[DragDrop_DragDropMiscCode#_DragDrop_QueryDataFormats_Autoconvert](~/samples/snippets/csharp/VS_Snippets_Wpf/DragDrop_DragDropMiscCode/CSharp/Window1.xaml.cs#_dragdrop_querydataformats_autoconvert)]
 [!code-vb[DragDrop_DragDropMiscCode#_DragDrop_QueryDataFormats_Autoconvert](~/samples/snippets/visualbasic/VS_Snippets_Wpf/DragDrop_DragDropMiscCode/visualbasic/window1.xaml.vb#_dragdrop_querydataformats_autoconvert)]  
  
## See also

- <xref:System.Windows.IDataObject>