[Rabeea Qbaha]

قم باستخدام جمله if 

يعني كالاتي :

كود :

 If Not TextBox1.Text = "" And TextBox2.Text = "" And TextBox2.Text = "" Then
           sqlstring = "select * from table where textbox1 like ..."

       ElseIf Not TextBox1.Text = "" And Not TextBox2.Text = "" And TextBox2.Text = "" Then
           sqlstring = "select * from table where textbox1 like ... and textbox2 like ..."
       End If

وقم بادخال جميع الشروط الممكنه