ASP.NET

<br />
        int x=0,y=0;<br />
        int tot = 0;<br />
        Bitmap Bmp;<br />
        //Color color=new System.Drawing.Color.;<br />
        Bmp = new Bitmap(1024, 700,PixelFormat.Format32bppPArgb);<br />
        int h = 0;<br />
        for (int i = 0; i <256; i = i + 8)<br />
        {<br />
            for (int j = 0; j < 256; j = j += 1)<br />
            {<br />
                for (int k = 0; k < 256; k += 1, x++, h++)<br />
                {<br />
                    if (h > 255)<br />
                        h = 0;<br />
                    Color newColor = Color.FromArgb(255,i, j, k);<br />
                    Bmp.SetPixel(x, y, newColor);<br />
                    if (x == 1023)<br />
                    {<br />
                        x = 0;<br />
                        y++;<br />
                    }<br />
                    if (y >= 699)<br />
                    {<br />
                        try<br />
                        {<br />
                            Bmp.Save("bmp1.bmp", ImageFormat.Png);<br />
                        }<br />
                        catch (Exception ex)<br />
                        {<br />
                            Response.Write(ex.Message);<br />
                        }<br />
                        return;<br />
                    }<br />
                }<br />
            }

<configuration>
    <system.web>
        <customErrors mode="On" defaultRedirect="CustomError.aspx"/>
        <error statusCode="404" redirect="CustomError.aspx"/>
    </system.web>
</configuration><pre><code>
Error:

<h2> Runtime Error </h2></span>
            <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">

             Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed.
            <br>
            Details: To enable the details of this specific error message to be viewable on the local server machine, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "RemoteOnly". To enable the details to be viewable on remote machines, please set "mode" to "Off".<br><br>

 <pre>

<!-- Web.Config Configuration File -->

<configuration>
    <system.web>
        <customErrors mode="RemoteOnly"/>
    </system.web>
</configuration>

<!-- Web.Config Configuration File -->

<configuration>
    <system.web>
        <customErrors mode="On" defaultRedirect="mycustompage.htm"/>
    </system.web>
</configuration>