how to customize errors with asp.net/vb.net

[LordHasan]

Hello
I think that my question is posted before but I didn't found answers so I'll ask it and if you please help me.
I'm making my first project with asp.net/vb.net and I don't know how to customize errors, while I'm searching I found that I can specify a page to be shown if an error accrues but I need to specify msg for each type of error.

[ajn1888]

Use the following in your web.config file:

<customErrors defaultRedirect="./errors/404.aspx" mode="On">

<error statusCode="400" redirect="./errors/400.aspx" />
<error statusCode="401" redirect="./errors/401.aspx" />
<error statusCode="403" redirect="./errors/403.aspx" />
<error statusCode="404" redirect="./errors/404.aspx" />
<error statusCode="408" redirect="./errors/408.aspx" />
<error statusCode="500" redirect="./errors/500.aspx" />
<error statusCode="503" redirect="./errors/503.aspx" />

</customErrors>

You can create a page for each type of error as above, e.g. 500.aspx would be for an internal server error. On each page you can write your custom error message for the user to see.

AJN

[LordHasan]

thanks
but this isn't what i need
somewhere for example a textbox where value should be positif for example so i need to costmize this error

[ajn1888]

thanks
but this isn't what i need
somewhere for example a textbox where value should be positif for example so i need to costmize this error

Sorry, I'm not sure I understand the above.

Could you explain more please?

AJN