IDataObject.GetDataPresent Method (String)
Assembly: System.Windows.Forms (in system.windows.forms.dll)
boolean GetDataPresent ( String format )
function GetDataPresent ( format : String ) : boolean
Not applicable.
Parameters
- format
The format for which to check. See DataFormats for predefined formats.
Return Value
true if data stored in this instance is associated with, or can be converted to, the specified format; otherwise false.Call this method to determine whether a format exists in this DataObject before calling GetData. Call GetFormats for the formats that are available in this instance.
 Note: |
|---|
| Data can be converted to another format if it was stored specifying that conversion is allowed, and if the requested format is compatible with the stored format. For example, data stored as Unicode can be converted to text. |
For an implementation of this method, see DataObject.GetDataPresent.
This example uses the DataObject class, which implements IDataObject, to demonstrate the use of the GetDataPresent method. First, it creates a data object using a string and the Text format. Then it verifies that the data is present in the Text format and displays the results in a message box. The example assumes that you have created a Form named Form1.
private void TestDataObject() { // Creates a new data object using a string and the Text format. string myString = "Hello World!"; DataObject myDataObject = new DataObject(DataFormats.Text, myString); // Checks whether the data is present in the Text format and displays the result. if (myDataObject.GetDataPresent(DataFormats.Text)) MessageBox.Show("The stored data is in the Text format." , "Test Result"); else MessageBox.Show("The stored data is not in the Text format.", "Test Result"); }
private void TestDataObject()
{
// Creates a new data object using a string and the Text format.
String myString = "Hello World!";
DataObject myDataObject = new DataObject(DataFormats.Text, myString);
// Checks whether the data is present in the Text format and displays
// the result.
if (myDataObject.GetDataPresent(DataFormats.Text)) {
MessageBox.Show("The stored data is in the Text format.",
"Test Result");
}
else {
MessageBox.Show("The stored data is not in the Text format.",
"Test Result");
}
} //TestDataObject
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.