/// <summary>
/// Render this control as an HTML stream.
/// </summary>
/// <param name="output">The HTML writer to write out to.</param>
protected override void Render(HtmlTextWriter output)
{
// first of all render the bitmap;
System.Drawing.Bitmap b = new System.Drawing.Bitmap((int)Width.Value, (int)Height.Value);
if (backColor_ != null)
{
Graphics g = Graphics.FromImage(b);
g.FillRectangle((new Pen((Color)backColor_)).Brush, 0, 0, b.Width, b.Height);
}
ps_.Draw(Graphics.FromImage(b), new System.Drawing.Rectangle(0, 0, b.Width, b.Height));
// then store in context memory.
Context.Session[prefix() + "PNG"] = b;
// now render html.
if (BorderStyle == BorderStyle.None)
{
output.AddAttribute("border", "0");
}
else
{
output.AddAttribute("border", BorderWidth.ToString());
output.AddAttribute("borderColor", BorderColor.ToKnownColor().ToString());
}
output.AddAttribute("cellSpacing", "0");
output.AddAttribute("cellPadding", "0");
output.RenderBeginTag("table");
output.RenderBeginTag("tr");
output.AddAttribute("vAlign", "center");
output.AddAttribute("align", "middle");
output.RenderBeginTag("td");
output.RenderBeginTag("P");
output.AddAttribute("src", plotUrl);
output.AddAttribute("alt", ToolTip);
output.RenderBeginTag("img");
output.RenderEndTag();
output.RenderEndTag();
output.RenderEndTag();
output.RenderEndTag();
output.RenderEndTag();
output.Flush();
}
protected override void Render(HtmlTextWriter writer)
{
if (null == MyGadget)
{
return;
}
if (MyGadget is RootElementMaster)
{
SetupGadgetForInlineRender((RootElementMaster)MyGadget);
}
string bordStyle = "";
if (BorderWidth.Value > 0)
{
string color = BorderColor.IsEmpty ? "" : BorderColor.ToKnownColor().ToString();
bordStyle = string.Format("border:{0} {1} {2};", BorderWidth.ToString(), BorderStyle.ToString(), color);
}
writer.Write("<div");
if (!string.IsNullOrEmpty(CssClass))
{
writer.Write(" class=\"" + CssClass + "\" ");
}
if (!string.IsNullOrEmpty(bordStyle) ||
!Width.IsEmpty ||
!Height.IsEmpty)
{
writer.Write(" style=\"");
writer.Write(bordStyle);
if (!Width.IsEmpty)
{
writer.Write(String.Format("width:{0};", Width));
}
if (!Height.IsEmpty)
{
writer.Write(String.Format("height:{0};", Height));
}
writer.Write("\"");
}
writer.WriteLine(">");
if (MyGadget.HasErrors())
{
writer.WriteLine("<pre style='font-weight:bold;color:red;'>");
writer.WriteLine(MyGadget.Errors.ParseErrors[0].Message);
if (MyGadget.Errors.ParseErrors[0] is XmlException)
{
string err = MyGadget.Errors.GetParseExceptionContent((XmlException)MyGadget.Errors.ParseErrors[0]);
if (!string.IsNullOrEmpty(err))
{
writer.WriteLine(err.Replace("<", "<").Replace(">", ">"));
}
}
writer.WriteLine("</pre>");
}
else
{
MyGadget.Render(writer);
}
writer.WriteLine("</div>");
}