输入字符串的格式不正确。 ASP.NET VB

Question

我在本地主机上正确运行但在服务器上显示错误的页面上出现错误。

错误显示为。

  

[FormatException：输入字符串的格式不正确。]          Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble（字符串   Value，NumberFormatInfo NumberFormat）+181          Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble（字符串   Value，NumberFormatInfo NumberFormat）+63

     

[InvalidCastException：from string＆＃34;＆＃34;输入＆＃39; Double＆＃39;无效。]          Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble（字符串   Value，NumberFormatInfo NumberFormat）+207          Infinity_Billing.BillNS.taxation（String Gross）+485          Infinity_Billing.BillNS.Period_TextChanged（Object sender，EventArgs e）+708          System.Web.UI.WebControls.TextBox.OnTextChanged（EventArgs e）+116          System.Web.UI.WebControls.TextBox.RaisePostDataChangedEvent（）+50          System.Web.UI.WebControls.TextBox.System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent（）   +10          System.Web.UI.Page.RaiseChangedEvents（）+132          System.Web.UI.Page.ProcessRequestMain（Boolean includeStagesBeforeAsyncPoint，Boolean includeStagesAfterAsyncPoint）   1644

我认为错误来自税收和Period_TextChanged。

多次更新本地主机上的错误页面，并在localhost上正常工作，完美地保存同一页面。

行gridview上的Taxation和Period Text的代码如下所示。

Protected Sub Period_TextChanged(sender As Object, e As EventArgs)
        Dim ddl As TextBox = TryCast(sender, TextBox)
        For Each row As GridViewRow In Gridview1.Rows
            Dim quan As Control = TryCast(row.FindControl("Qty"), TextBox)
            Dim post As Control = TryCast(row.FindControl("Post"), DropDownList)
            Dim prd As Control = TryCast(row.FindControl("Period"), TextBox)
            If prd IsNot Nothing Then
                Dim ddl1 As DropDownList = DirectCast(post, DropDownList)
                Dim ddl2 As TextBox = DirectCast(quan, TextBox)
                Dim ddl3 As TextBox = DirectCast(prd, TextBox)
                If ddl.ClientID = ddl3.ClientID Then
                    Dim amt As TextBox = TryCast(row.FindControl("Amount"), TextBox)
                    Dim txt As TextBox = TryCast(row.FindControl("Rate"), TextBox)
                    If ddl3 Is Nothing Then
                        MsgBox("Please Insert Nos. of Days Present", vbOKOnly, "Days")
                        ddl3.Focus()
                    ElseIf Monthlist.SelectedValue = 0 Then
                        MsgBox("Please Select Month", vbOKOnly, "Month")
                        Monthlist.Focus()
                    Else
                        amt.Text = ddl1.SelectedValue * ddl2.Text * ddl3.Text / DateTime.DaysInMonth(DateTime.Now.Year, Monthlist.SelectedValue)
                        GrandTotal()
                        taxation(Gross_Amount.Text)
                        Exit For
                    End If
                End If
            End If
        Next


Private Sub taxation(Gross As String)
        If aggrmnt.SelectedValue = 0 Then
            MsgBox("Select Aggrement Before Billing", vbOKOnly, "Info")
        Else
            Using con As SqlConnection = New SqlConnection(strConnString)
                Using cmd As SqlCommand = New SqlCommand
                    cmd.Connection = con
                    cmd.CommandType = CommandType.Text
                    cmd.CommandText = "Command Text Here"
                    Dim dt As New DataTable()
                    con.Open()
                    Dim reader As SqlDataReader = cmd.ExecuteReader()
                    dt.Load(reader)
                    ESIC_Amt.Text = ((Gross * dt.Rows(0).Item("ESICDed").ToString.Trim()) / 100)
                    EPF_Amt.Text = ((Gross * dt.Rows(0).Item("EPFDed").ToString.Trim()) / 100)
                    Service_Chrg.Text = ((Gross * dt.Rows(0).Item("Ser_Charge").ToString.Trim()) / 100)
                    Dim temp As Integer = dt.Rows(0).Item("ServiceTaxDed").ToString.Trim()
                    Dim tempttl As Integer = (Val(ESIC_Amt.Text) + Val(EPF_Amt.Text) + Val(Service_Chrg.Text) + Val(Gross))
                    Service_Amt.Text = (tempttl * temp / 100)
                    NetAmt.Text = Val(tempttl) + Val(Service_Amt.Text)
                    con.Close()
                End Using
            End Using
        End If

天更改从上面的代码中触发period_textchaged事件。

GRAND TOTAL的代码如下所示

Private Sub GrandTotal()
        Dim GTotal As Integer
        For i As Integer = 0 To Gridview1.Rows.Count - 1
            Dim total As Integer = DirectCast(Gridview1.Rows(i).FindControl("Amount"), TextBox).Text
            If total.ToString.Length <= 0 Then
                total = 0
            Else
                GTotal += total
            End If
            'For Each total As [String] In TryCast(Gridview1.Rows(i).FindControl("Amount"), Label).Text
        Next
        Gross_Amount.Text = GTotal.ToString()
    End Sub