/// <summary>
/// 重写默认的HtmlTextWriter方法，修改form标记中的value属性，使其值为重写的URL而不是真实URL。
/// </summary>
/// <param name="writer"></param>
protected override void Render(HtmlTextWriter writer)
{
if (writer is System.Web.UI.Html32TextWriter)
{
writer = new FormFixerHtml32TextWriter(writer.InnerWriter);
}
else
{
writer = new FormFixerHtmlTextWriter(writer.InnerWriter);
}
base.Render(writer);
}
/// <summary>
/// We override Render to swap out the default HtmlTextWriter for our own. Our own Writer's sole purpose is to
/// change the the action attribute on the form tag to the vanity Url. This way all postbacks occur on the vanity url
/// </summary>
/// <param name="writer">The <see cref="T:System.Web.UI.HtmlTextWriter"></see> that receives the page content.</param>
protected override void Render(HtmlTextWriter writer)
{
HtmlMeta generatorMeta = new HtmlMeta();
generatorMeta.Name = "GENERATOR";
generatorMeta.Content = FrameworkContext.ProductName;
this.Header.Controls.Add(generatorMeta);
HtmlMeta versionMeta = new HtmlMeta();
versionMeta.Name = "VERSION";
versionMeta.Content = FrameworkContext.ProductVersionDesc;
this.Header.Controls.Add(versionMeta);
HtmlMeta licenseMeta = new HtmlMeta();
licenseMeta.Name = "LICENSE";
CommerceLicenseInfo[] licenseInfo = CommerceLicensing.Current;
if (licenseInfo == null || licenseInfo.Length == 0)
{
licenseMeta.Content = "unlicensed version";
}
else
{
licenseMeta.Content = String.Format("{0} ({1})", licenseInfo[0].Edition, licenseInfo[0].Company);
}
this.Header.Controls.Add(licenseMeta);
if (CMSContext.Current.IsUrlReWritten)
{
if (writer is System.Web.UI.Html32TextWriter)
{
writer = new FormFixerHtml32TextWriter(writer.InnerWriter);
}
else
{
writer = new FormFixerHtmlTextWriter(writer.InnerWriter);
}
}
base.Render(writer);
/*
* StringWriter sw = new StringWriter();
* HtmlTextWriter hw = new HtmlTextWriter(sw);
* base.Render(hw);
* string html = sw.ToString();
*
* // Hose the writers we don't need anymore.
* hw.Close();
* sw.Close();
*
* int start = html.IndexOf("<input type=\"hidden\" name=\"__VIEWSTATE\"");
* // If we find it, then move it.
* if (start > -1)
* {
* int end = html.IndexOf("/>", start) + 2;
*
* // Strip out the viewstate.
* string viewstate = html.Substring(start, end - start);
* html = html.Remove(start, end - start);
*
* // Find the end of the form and insert it there, since we can't put it any lower in the response stream.
* int formend = html.IndexOf("</form>");
* html = html.Insert(formend, viewstate);
* }
*
* // Send the results back into the writer provided.
* writer.Write(html);
* */
}
