[RESOLVED] Why Isn't This Code Working?

[Louix]

Hi, I have this code, which works perfectly the first time I click a button:

 private void button3_Click(object sender, EventArgs e)
        {
            webBrowser1.Navigate(new Uri("about:blank"));
           
            
            webBrowser1.Document.Write("<table id=\"table\" border=\"1\" cellspacing=\"1\" cellpadding=\"1\">");
            
            for (int r = 0; r <= (numericUpDown1.Value - 1); r++)
            {
                webBrowser1.Document.Write("<tr>");

                for (int c = 0; c <= (numericUpDown2.Value - 1); c++)
                {
                    webBrowser1.Document.Write("<td>&nbsp; &nbsp; &nbsp; &nbsp;</td>");
                }
                webBrowser1.Document.Write("</tr>");
                
            }
            webBrowser1.Document.Write("</table>");

But when I click the button a second time, the browser control just displays a blank page, regardless of whether the numericUpDown values are changed.

[DeanMc]

Where is this writing too? I mean is it at the end of the file or the top of the file (I presume end) how does your program know your not writing after the <\body> tag?

[Louix]

This writes to the page about:blank in a webBrowser control.

It looks like this goes after the </html> tag, and works perfectly the first time, but the second time, it's just a blank page, with the about:blank source code, and it won't insert my table generating code.

[DeanMc]

And what are you trying to do, generate a web page?

[Atheist]

If you just want to generate a dynamic HTML page, theres no reason to navigate to about:blank first, just assign the HTML to the WebBrowsers DocumentText property:

            StringBuilder htmlBuilder = new StringBuilder();
            htmlBuilder.Append("<table id=\"table\" border=\"1\" cellspacing=\"1\" cellpadding=\"1\">");

            for (int r = 0; r <= (numericUpDown1.Value - 1); r++) {
                htmlBuilder.Append("<tr>");

                for (int c = 0; c <= (numericUpDown2.Value - 1); c++) {
                    htmlBuilder.Append("<td>&nbsp; &nbsp; &nbsp; &nbsp;</td>");
                }
                htmlBuilder.Append("</tr>");

            }
            htmlBuilder.Append("</table>");

            webBrowser1.DocumentText = htmlBuilder.ToString();

[Louix]

Thanks Atheist, your code did exactly what I needed to accomplish!