try and catch for this peice of code?

[casualrich]

hi how can i do error trapping within this peice of code?

please help me

 Private Sub butCALCULATE_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butCALCULATE.Click
       

        Dim input1 As Single
        Dim network As Single
        network = 35
        input1 = txtamount1.Text
        txtcost1.Text = input1 * network


        Dim input2 As Single
        Dim HardDisk As Single
        HardDisk = 120
        input2 = txtamount2.Text
        txtcost2.Text = input2 * HardDisk

        Dim input3 As Single
        Dim MotherBoard As Single
        MotherBoard = 39.99
        input3 = txtamount3.Text
        txtcost3.Text = input3 * MotherBoard

        Dim input4 As Single
        Dim Matnteance As Single
        Matnteance = 79.99
        input4 = txtamount4.Text
        txtcost4.Text = input4 * Matnteance

        Dim input5 As Single
        Dim OnsiteService As Single
        OnsiteService = 50
        input5 = txtamount5.Text
        txtcost5.Text = input5 * OnsiteService

 

[JuggaloBrotha]

Use Single.TryParse instead of directly assigning and using a try/catch