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Simple Solution for ASP. NET page error handling and email sending

Source: Internet
Author: User
Tags mailmessage smtpclient
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1 page included: default. aspx, error. aspx

2. Idea: The Global. asax page is used to capture page errors other than try in the system. And send the error message to the error. ASPX page. The error. ASPX page displays the error information and sends the error information to the specified mailbox.

3. Specific Code:

Default. aspx page

 

Code
HTML section:
<Body>
<Form ID = "form1" runat = "server">
<Div>

</Div>
<Asp: dropdownlist id = "dropdownlist1" runat = "server" datatextfield = "name"
Datavaluefield = "ID">
</ASP: dropdownlist>
<Asp: button id = "button1" runat = "server" text = "button" onclick = "button#click"/>
</Form>
</Body>
CS section:
Protected void page_load (Object sender, eventargs E)
{
If (! Ispostback)
{
Datatable dt = new datatable ();
DT. Columns. Add (New datacolumn ("ID", typeof (string )));
DT. Columns. Add (New datacolumn ("name", typeof (string )));

DT. Rows. Add (Dt. newrow ());
DT. Rows [0] [0] = "1 ";
DT. Rows [0] [1] = "1 ";
This. dropdownlist1.datasource = DT;
This. dropdownlist1.databind ();

}
}
Protected void button#click (Object sender, eventargs E)
{
This. dropdownlist1.selectedvalue = "fff ";
}

 

Global. asax code:

Code
<% @ Import namespace = "system. Web" %>
Void application_error (Object sender, eventargs E)
{
Exception lasterror = server. getlasterror ();
If (lasterror! = NULL)
Response. Redirect ("error. aspx? Error = "+ lasterror. innerexception. tostring (). Replace (" \ r \ n ",""));
}

 

Error. aspx code:

 

Code
HTML section:
<Body>
<Form ID = "form1" runat = "server">
<Div style = "background-color: #99 CCFF; Height: 252px;">
Sorry: An error occurred.
<Div style = "background-color: Silver"> <asp: Label id = "label1" runat = "server"
TEXT = "label"> </ASP: Label> </div>

</Div>
</Form>
</Body>
CS section:

Add a namespace:

Using system. net. mail;
Protected void page_load (Object sender, eventargs E)
{
If (! Ispostback)
{
If (request ["error"]! = NULL & request ["error"]. length> 0)
{
This. label1.text = request ["error"];
Sendmail (request ["error"]);
}
}
}
Public void Sendmail (string body)
{
Mailmessage mymail = new mailmessage ();

Mymail. From = new mailaddress ("myaccount@test.com ");
Mymail. to. Add ("test@test.com ");
Mymail. Subject = "error ";
Mymail. Priority = mailpriority. normal;
Mymail. bodyencoding = system. Text. encoding. utf8;
Mymail. Body = body;
Smtpclient SMTP = new smtpclient ();
SMTP. Host = "mail ";
Try
{
SMTP. Send (mymail );
}
Catch (smtpexception ex)
{
This. label1.text = "failed to send the email. \ R \ n "+ ex. message;
}

}

 

At this point, the system can capture errors and send emails.

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Related Keywords:
net error handling error handling and logging port for sending email how to send email from html page using asp net error and exception handling asp net and asp sending mail in asp net using smtp
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