Please Convert VB.net Code to C#

Imports System
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.ComponentModel
Imports System.Text


Namespace LNTSystems.CommonControls
    Partial Class MsgBox
        Inherits System.Web.UI.UserControl

#Region " Web Form Designer Generated Code "
         'This call is required by the Web Form Designer.
        <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

        End Sub


        Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
            'CODEGEN: This method call is required by the Web Form Designer
            'Do not modify it using the code editor.
            InitializeComponent()
        End Sub

#End Region
        Private content As String
        Public Sub alert(ByVal msg As String)
            Dim sMsg As String = msg.Replace("" & Microsoft.VisualBasic.Chr(10) & "", "\n")
            sMsg = msg.Replace("""", "'")
            Dim sb As StringBuilder = New StringBuilder
            sb.Append("<script language='javascript'>")
            sb.Append("alert( """ + sMsg + """ );")
            sb.Append("</script>")
            content = sb.ToString
        End Sub
        Public Sub alert(ByVal msg As String, ByVal Redirect As String)
            Dim sMsg As String = msg.Replace("" & Microsoft.VisualBasic.Chr(10) & "", "\n")
            sMsg = msg.Replace("""", "'")
            Dim sb As StringBuilder = New StringBuilder
            sb.Append("<script language='javascript'>")
            sb.Append("alert( """ + sMsg + """ );")
            sb.Append("window.navigate( """ + Redirect + """ );")
            sb.Append("</script>")
            content = sb.ToString
        End Sub

        Public Sub confirm(ByVal msg As String, ByVal hiddenfield_name As String)
            Dim sMsg As String = msg.Replace("" & Microsoft.VisualBasic.Chr(10) & "", "\n")
            sMsg = msg.Replace("""", "'")
            Dim sb As StringBuilder = New StringBuilder
            sb.Append("<INPUT type=hidden value='0' name='" + hiddenfield_name + "'>")
            sb.Append("<script language='javascript'>")
            sb.Append(" if(confirm( """ + sMsg + """ ))")
            sb.Append(" { ")
            sb.Append("document.forms[0]." + hiddenfield_name + ".value='1';" + "document.forms[0].submit(); }")
            sb.Append(" else { ")
            sb.Append("document.forms[0]." + hiddenfield_name + ".value='0'; }")
            sb.Append("</script>")
            content = sb.ToString
        End Sub

        Protected Overloads Overrides Sub Render(ByVal output As HtmlTextWriter)
            output.Write(Me.content)
        End Sub

    End Class

End Namespace