WriteDelegate Delegate

DotNetZip

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Ionic Zip Library v1.9.1.6 WriteDelegate Delegate

Delegate in which the application writes the ZipEntry content for the named entry.

Declaration Syntax

Visual Basic

Visual C++

public delegate void WriteDelegate(
	string entryName,
	Stream stream
)

Public Delegate Sub WriteDelegate ( _
	entryName As String, _
	stream As Stream _
)

public delegate void WriteDelegate(
	String^ entryName, 
	Stream^ stream
)

Parameters

entryName (String): The name of the entry that must be written.

stream (Stream): The stream to which the entry data should be written.

Remarks

When you add an entry and specify a WriteDelegate, via AddEntry(String, WriteDelegate), the application code provides the logic that writes the entry data directly into the zip file.

Examples

This example shows how to define a WriteDelegate that obtains a DataSet, and then writes the XML for the DataSet into the zip archive. There's no need to save the XML to a disk file first.

CopyC#

private void WriteEntry (String filename, Stream output)
{
    DataSet ds1 = ObtainDataSet();
    ds1.WriteXml(output);
}

private void Run()
{
    using (var zip = new ZipFile())
    {
        zip.AddEntry(zipEntryName, WriteEntry);
        zip.Save(zipFileName);
    }
}

CopyVB.NET

Private Sub WriteEntry (ByVal filename As String, ByVal output As Stream)
    DataSet ds1 = ObtainDataSet()
    ds1.WriteXml(stream)
End Sub

Public Sub Run()
    Using zip = New ZipFile
        zip.AddEntry(zipEntryName, New WriteDelegate(AddressOf WriteEntry))
        zip.Save(zipFileName)
    End Using
End Sub