TextFieldParser.ErrorLineNumber Property

public:
 property long ErrorLineNumber { long get(); };

public long ErrorLineNumber { get; }

member this.ErrorLineNumber : int64

Public ReadOnly Property ErrorLineNumber As Long

Property Value

The number of the line that caused the most recent MalformedLineException exception.

Examples

This example uses the ErrorLineNumber property to display the location of 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.ErrorLineNumber & " is not valid.")
 End Try
End While

Remarks

If no MalformedLineException exceptions have been thrown, -1 is returned.

The ErrorLine property can be used to display the number of the line that caused the exception. Blank lines and comments are not ignored when determining the line number.

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

See also

• OpenTextFieldParser(String)
• Objects (Visual Basic)
• Parsing Text Files with the TextFieldParser Object
• How to: Read From a Text File with Multiple Formats in Visual Basic
• How to: Read From a Fixed-width Text File in Visual Basic
• How to: Read From a Comma-Delimited Text File in Visual Basic
• Try...Catch...Finally Statement (Visual Basic)