Finding out substring

[Savita Yadav]

Sir, Mu question is finding substring in the main string but each time my string changing such as
first it may be "Sun Mon Tue"
second time it may be "Sun Tue Fri Sat"
or it may any any days or all days in a week.

[IronRazer]

Hello Savita Yadav,
If your string is "Sun Mon Tue" and you want to find "Mon" then try this :

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Str1 As String = "Sun Mon Tue"
        Dim Str2 As String = ""
        If Str1.Contains("Mon") Then
            Str2 = Str1.Substring(Str1.IndexOf("Mon"), 3)
        End If
    End Sub

If your string contains "Mon" more than once and you want to find the last one in the string then use this :

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Str1 As String = "Sun Mon Tue Wed Mon Fri"
        Dim Str2 As String = ""
        If Str1.Contains("Mon") Then
            Str2 = Str1.Substring(Str1.LastIndexOf("Mon"), 3)
        End If
    End Sub