Creates the beginning tag for the Web control in the markup that is transmitted to the target browser.
- writer
- The System.Web.UI.HtmlTextWriter containing methods to render the target-specific output.
Override the WebControlAdapter.RenderBeginTag(System.Web.UI.HtmlTextWriter) method to write additional markup tags or add attributes to the beginning tag for the System.Web.UI.WebControls.WebControl object. Use WebControlAdapter.RenderBeginTag(System.Web.UI.HtmlTextWriter) in conjunction with the WebControlAdapter.RenderEndTag(System.Web.UI.HtmlTextWriter) method to assure beginning and ending tag consistency.