Working with Strings in VB.NET

Hi I'm trying to write a code to concatenate fields and I seem to be having a problem The guidelines are as follows "Write the code for the “Put Together” button click event. The subroutine should call a function PutFieldsTogether. The PutFieldsTogether function should get the text from all the txtField# textboxes and create a string by concatenating the fields together with comma&space in between each field. The PutFieldsTogether function should return this string. The “Put Together” button click subroutine should then update the text in txtRecord with the returned string. The “Put Together” button click subroutine should also clear the txtField# textboxes." Here's the what I have written but it won't run Private Sub btnPutTogether_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPutTogether.Click Dim str1 As String = txtField1.Text Dim str2 As String = txtField2.Text Dim str3 As String = txtField3.Text Dim str4 As String = txtField4.Text Dim str5 As String = txtField5.Text Dim str6 As String = txtField6.Text Dim strJoinRecord As String strJoinRecord = PutFieldsTogether(str1, str2, str3, str4, str5, str6) End Sub Private Function PutFieldsTogether(ByVal str1 As String, ByVal str2 As String, ByVal str3 As String, ByVal str4 As String, ByVal str5 As String, ByVal str6 As String) As String Dim strJoinRecord As String Dim Fields() As String = New String() {str1, str2, str3, str4, str5, str6} strJoinRecord = String.Join(",", Fields) strJoinRecord = txtRecord.Text Return strJoinRecord End Function

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