how to convert a string value into integer in vb.net - vb.net

Question

Datatype of expense is int in Sql Server database Please Guide
The Value of Expense which i got from the table expense
'Total Expenses B/W Dates
sql = "select COALESCE (SUM (amount), 0) from tblexpense Where transactiondate >= #p1 and transactiondate <= #p2"
CmdObj = New SqlCommand(sql, ConObj)
CmdObj.Parameters.Add("#p1", SqlDbType.Date).Value = DateTimePicker1.Value.Date
CmdObj.Parameters.Add("#p2", SqlDbType.Date).Value = DateTimePicker2.Value.Date
CmdObj.ExecuteScalar()
Dim sumexpense As Integer = CmdObj.ExecuteScalar
LblExp.Text = "Rs. " & sumexpense
Save Button to save The value of expense into table
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
ConObj = New SqlConnection(ConStr)
ConObj.Open()
Dim sql As String = "insert into tblbalance (tcon,pcon,ecoll,pendcoll,expense,bcoll,nprofit) values(#tcon,#pcon,#ecoll,#pendcoll,#expense,#bcoll,#nprofit)"
With CmdObj
.Parameters.Add("#tcon", SqlDbType.Int).Value = lblTcon.Text
.Parameters.Add("#pcon", SqlDbType.Int).Value = LblPcon.Text
.Parameters.Add("#ecoll", SqlDbType.Int).Value = LblEColl.Text
.Parameters.Add("#pendcoll", SqlDbType.Int).Value = LblPColl.Text
.Parameters.Add("#expense", SqlDbType.Int).Value = LblExp.Text
.Parameters.Add("#bcoll", SqlDbType.Int).Value = LblBcoll.Text
.Parameters.Add("#nprofit", SqlDbType.Int).Value = LblNet.Text
End With
CmdObj.Connection = ConObj
CmdObj.ExecuteNonQuery()
MsgBox("Saved Successfully")
ConObj.Close()
End Sub

Answer 1

Imports System.Text.RegularExpressions
Private Shared Function GetIntOnly(ByVal value As String) As Integer
Dim returnVal As String = String.Empty
Dim collection As MatchCollection = Regex.Matches(value, "\d+")
For Each m As Match In collection
returnVal += m.ToString()
Next
Return Convert.ToInt32(returnVal)
End Function
Dim sql As String = "insert into tblbalance (tcon,pcon,ecoll,pendcoll,expense,bcoll,nprofit) values('" &
lblTcon.Text & "','" & LblPcon.Text & "','" & GetIntOnly(LblEColl.Text) & "','" & GetIntOnly(LblPColl.Text) & "','" &
GetIntOnly(LblExp.Text) & "','" & GetIntOnly(LblBcoll.Text) & "','" & GetIntOnly(LblNet.Text) & "')"