Tooltip in customwebcontrol

[Rolus]

Hello,

I was having a lot of trouble getting the radtooltip to work correctly in a customwebcontrol (source is appended). For IE all is working ok. For Firefox and Opera there is an issue. When I set the alternatetext property of the image the tool tip won't show in both browser. When it's empty it is al working ok. As a workaround i leave the alttext empty although it's against our policies. You know an other solution for this problem?

Thanks,
Carol

	using System.ComponentModel;
	using System.Web.UI;
	using System.Web.UI.WebControls;
	using ONVZ.DP.Site.Controls;
	using Telerik.Web.UI;
	namespace ONVZ.DP.Site.controls
	{
	[ToolboxData("<{0}:SmartsiteTooltip runat=\"server\"></{0}:SmartsiteTooltip>")]
	public partial class SmartsiteTooltip : PlaceHolder
	{
	[Category("Behavior")]
	[Description("helpID van de SmartSite helptext (bijv. HLP960_1)")]
	public string HelpID
	{
	get
	{
	string s = "";
	if (ViewState["HelpID"] != null)
	s = ViewState["HelpID"].ToString();
	return s;
	}
	set
	{
	ViewState["HelpID"] = value;
	}
	}
	[Category("Behavior")]
	[Description(@"Als de SmartSite helptext niet gevonden wordt en deze flag staat op true
	dan wordt de hele tooltip niet getoond. Default false en alleen in release build.")]
	public bool VerbergenIndienLeeg
	{
	get
	{
	string s = "false";
	if (ViewState["VerbergenIndienLeeg"] != null)
	s = ViewState["VerbergenIndienLeeg"].ToString();
	return bool.Parse(s);
	}
	set
	{
	ViewState["VerbergenIndienLeeg"] = value;
	}
	}
	[Category("Appearance")]
	[Description("De alt-tekst van het plaatje. Default waarde is 'Informatie'.")]
	public string AlternatieveTekst
	{
	get
	{
	string s = "Informatie";
	if (ViewState["AlternateText"] != null)
	s = ViewState["AlternateText"].ToString();
	return s;
	}
	set
	{
	ViewState["AlternateText"] = value;
	}
	}
	[Category("Appearance")]
	[Description("Url van het plaatje default wordt er een vraagteken gebruikt")]
	public string AfbeeldingsPad
	{
	get
	{
	string s = ResolveUrl("~/images/help.gif");
	if (ViewState["ImageUrl"] != null)
	s = ViewState["ImageUrl"].ToString();
	return s;
	}
	set
	{
	ViewState["ImageUrl"] = value;
	}
	}
	[Category("Appearance")]
	[Description("Titel van de tooltip. Deze wordt bovenin het venster getoond.")]
	public string VensterTitel
	{
	get
	{
	string s = "";
	if (ViewState["VensterTitel"] != null)
	s = ViewState["VensterTitel"].ToString();
	return s;
	}
	set
	{
	ViewState["VensterTitel"] = value;
	}
	}
	protected override void CreateChildControls()
	{
	Image img = new Image
	{
	//AlternateText = this.AlternatieveTekst,
	ImageUrl = this.AfbeeldingsPad,
	ID = string.Concat(HelpID, "Stt")
	};
	this.Controls.Add(img);
	RadToolTip rtt = new RadToolTip
	{
	Animation = ToolTipAnimation.Fade,
	ShowCallout = false,
	Skin = "tt441",
	Height = Unit.Pixel(250),
	Width = Unit.Pixel(350),
	OnClientShow = "DotNetIframeResize",
	RelativeTo = ToolTipRelativeDisplay.Element,
	Position = ToolTipPosition.BottomCenter,
	ContentScrolling = ToolTipScrolling.Y,
	Sticky = true,
	ManualClose = true,
	Title = VensterTitel,
	EnableEmbeddedSkins = false,
	TargetControlID = img.ID
	};
	#if DEBUG
	rtt.Text = string.Format("HelpID: {0}</ br>{1}", HelpID, SmartsiteTextLabel.GetSmartsiteText(HelpID));
	#else
	rtt.Text = SmartsiteTextLabel.GetSmartsiteText(HelpID);
	if (VerbergenIndienLeeg && rtt.Text.ToUpper().Contains("TEKST_NIET_GEVONDEN:"))
	{
	rtt.Visible = false;
	}
	#endif
	this.Controls.Add(rtt);
	base.CreateChildControls();
	}
	}
	}

[Rolus]

Seems I won't get an answer, is it normal, is it a bug questions questons questions....
Should I make a ticket for it to receive an answer?

[Dave Forster]

Hi Carol,

I believe the alttext property is specific to IE and not supported by other "standards based" browsers.  You should use the "Title" attribute which is supported by all and this should cure your problem.

regards
Dave