TextFieldParser.ErrorLine Property

Returns the line that caused the most recent MalformedLineException exception.

' Usage
Dim value As String = TextFieldParserObject.ErrorLine
' Declaration
Public ReadOnly Property ErrorLine As String

Property Value

String.

Remarks

If no MalformedLineException exceptions have been thrown, an empty string is returned.

The TextFieldParser.ErrorLineNumber Property can be used to display the number of the line causing the exception.

Tasks

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

To

See

Read from a delimited file

How to: Read From Comma-Delimited Text Files in Visual Basic

Read from a fixed-width file

How to: Read From Fixed-width Text Files in Visual Basic

Example

This example uses the ErrorLine property to display the line causing the current MalformedLineException exception.

Dim FileReader As Microsoft.VisualBasic.FileIO.TextFieldParser
FileReader = My.Computer.FileSystem.OpenTextFieldParser("C:\test.txt")
Dim currentRow As String()
While Not FileReader.EndOfData
    Try
        currentRow = FileReader.ReadFields
        For Each currentField As String In currentRow
            My.Computer.FileSystem.WriteAllText _
            ("C://testfile.txt", currentField, True)
        Next 
    Catch ex As Microsoft.VisualBasic.FileIO.MalformedLineException
        MsgBox("Line " & FileReader.ErrorLine & " is not valid.")
    End Try 
End While

Requirements

Namespace:Microsoft.VisualBasic.FileIO

Class:TextFieldParser

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

Permissions

No permissions are required.

See Also

Tasks

How to: Read From Text Files with Multiple Formats in Visual Basic

How to: Read From Fixed-width Text Files in Visual Basic

How to: Read From Comma-Delimited Text Files in Visual Basic

How to: Test Code with a Try…Catch Block in Visual Basic

Concepts

Parsing Text Files with the TextFieldParser Object

Reference

TextFieldParser Object

TextFieldParser.ErrorLine