How to: Create Strings Using a StringBuilder in Visual Basic 

This example constructs a long string from many smaller strings using the StringBuilder class. The StringBuilder class is more efficient than the &= operator for concatenating many strings.

Example

The following example creates an instance of the StringBuilder class, appends 1,000 strings to that instance, and then returns its string representation.

Private Function StringBuilderTest() As String
    Dim builder As New System.Text.StringBuilder
    For i As Integer = 1 To 1000
        builder.Append("Step " & i & vbCrLf)
    Next
    Return builder.ToString
End Function

See Also

Reference

&= Operator (Visual Basic)

Concepts

Using the StringBuilder Class
Creating New Strings
Strings Sample

Other Resources

Strings in Visual Basic
Manipulating Strings
Building Strings in Visual Basic