TextFieldParser.ErrorLine Property

 

Returns the line that caused the most recent MalformedLineException exception.

Namespace:   Microsoft.VisualBasic.FileIO
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public string ErrorLine { get; }

Property Value

Type: System.String

The line that caused the most recent MalformedLineException exception.

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

The ErrorLineNumber property can be used to display the number of the line that caused the exception.

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

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

.NET Framework
Available since 2.0
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