Display Success Popup Box after record inserted using C# and VB.Net in ASP.Net

hello, 

it is good, can i define it in a class file.

public enum MessageType { Success, Error, Info, Warning };
protected void ShowMessage(string Message, MessageType type)
{
    ScriptManager.RegisterStartupScript(this, this.GetType(), System.Guid.NewGuid().ToString(), "ShowMessage('" + Message + "','" + type + "');", true);
}

and on page i can just this method so it looks clean

ShowMessage("Record submitted successfully", MessageType.Success);

pls advice