In this article I will explain with an example, how to display exception (error) Message details using
JavaScript Alert
MessageBox in
ASP.Net using C# and VB.Net.
Exception details such as
Message,
StackTrace,
TargetSite and Source will be displayed using
JavaScript Alert MessageBox in
ASP.Net.
HTML Markup
The
HTML Markup consists of:
Button – For raise an Exception and the exception (error) Message details will be displayed.
<asp:Button Text="Click to Raise Exception" runat="server" OnClick="RaiseException" />
Display Exception (Error) Message details using JavaScript Alert MessageBox in ASP.Net
The following event handler is raised when the
Button is clicked. An exception is raised by converting a string value to integer inside a
Try-Catch block.
The raised
Exception is caught in the Catch block and the details of the exception (error) are displayed using
JavaScript Alert MessageBox.
C#
protected void RaiseException(object sender, EventArgs e)
{
try
{
int i = int.Parse("Mudassar");
}
catch (Exception ex)
{
string message = string.Format("Message: {0}\\n\\n",ex.Message);
message += string.Format("StackTrace: {0}\\n\\n", ex.StackTrace.Replace(Environment.NewLine, string.Empty));
message += string.Format("Source: {0}\\n\\n", ex.Source.Replace(Environment.NewLine, string.Empty));
message += string.Format("TargetSite: {0}", ex.TargetSite.ToString().Replace(Environment.NewLine, string.Empty));
ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert(\"" + message + "\");", true);
}
}
VB.Net
Protected Sub RaiseException(sender As Object, e As EventArgs)
Try
Dim i As Integer = Integer.Parse("Mudassar")
Catch ex As Exception
Dim message As String = String.Format("Message: {0}\n\n", ex.Message)
message &= String.Format("StackTrace: {0}\n\n", ex.StackTrace.Replace(Environment.NewLine, String.Empty))
message &= String.Format("Source: {0}\n\n", ex.Source.Replace(Environment.NewLine, String.Empty))
message &= String.Format("TargetSite: {0}", ex.TargetSite.ToString().Replace(Environment.NewLine, String.Empty))
ClientScript.RegisterStartupScript(Me.GetType(), "alert", "alert(""" & message & """);", True)
End Try
End Sub
Screenshot
![Display Exception (Error) Message details using JavaScript Alert MessageBox in ASP.Net]()
Demo
Downloads
