SQL Statement Using String Concatenation?

I want to create a program that allows me to enter the name of a table, a field along with a value. The program should concatenate the values to form a valid SQL select statement. I can also modify the program to include multiple field names and values. Example: -Select “FieldName” from “TableName” where “FieldName”= “Value” I have created 3 textboxes called and 3 labels named Select, From and Where This is my code here, i would need an assistance on the right way to achieve this, maybe mine is wrong.

Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim SelectItem As String
Dim From As String
Dim Where As String
SelectItem = txtSelectItem.Text
From = txtFrom.Text
Where = txtWhere.Text
lblDisplay = "Select" & " " & SelectItem & " " & "From" & " " & From & " " & Where
End Sub
End Class