TextFieldParser.EndOfData Property

public:
 property bool EndOfData { bool get(); };

public bool EndOfData { get; }

member this.EndOfData : bool

Public ReadOnly Property EndOfData As Boolean

Property Value

True if there is no more data to read; otherwise, False.

Examples

This example uses the EndofData property to loop through all the fields in the file with the TextFieldReader, FileReader.

Dim StdFormat As Integer() = {5, 10, 11, -1}
Dim ErrorFormat As Integer() = {5, 5, -1}
Using FileReader As New Microsoft.VisualBasic.FileIO.
 TextFieldParser("C:\testfile.txt")

 FileReader.TextFieldType = FileIO.FieldType.FixedWidth
 FileReader.FieldWidths = StdFormat
 Dim CurrentRow As String()
 While Not FileReader.EndOfData
 Try
 Dim RowType As String = FileReader.PeekChars(3)
 If String.Compare(RowType, "Err") = 0 Then
 ' If this line describes an error, the format of the row will be different.
 FileReader.SetFieldWidths(ErrorFormat)
 CurrentRow = FileReader.ReadFields
 FileReader.SetFieldWidths(StdFormat)
 Else
 ' Otherwise parse the fields normally
 CurrentRow = FileReader.ReadFields
 For Each newString As String In CurrentRow
 My.Computer.FileSystem.WriteAllText("newFile.txt", newString, True)
 Next
 End If
 Catch ex As Microsoft.VisualBasic.FileIO.MalformedLineException
 MsgBox("Line " & ex.Message & " is invalid. Skipping")
 End Try
 End While
End Using

Remarks

This property can be used when reading from files to determine the end of the data being read.

The following table lists examples of tasks involving the EndOfData property.

See also

• OpenTextFieldParser(String)
• Objects (Visual Basic)