SuperToolTip.AllowHtmlText Property

Gets or sets whether HTML formatting is allowed in this tooltip.

Namespace: DevExpress.Utils

Assembly: DevExpress.Utils.v24.2.dll

Declaration

C#

[DefaultValue(DefaultBoolean.Default)]
public virtual DefaultBoolean AllowHtmlText { get; set; }

VB.NET

<DefaultValue(DefaultBoolean.Default)>
Public Overridable Property AllowHtmlText As DefaultBoolean

Property Value

Type	Default	Description
DefaultBoolean	Default	True, to enable HTML formatting; False, to disable; Default, to use the ToolTipController.AllowHtmlText setting.

Available values:

Name	Description	Return Value
True	The value is true.	0
False	The value is false.	1
Default	The value is specified by a global option or a higher-level object.	2

Remarks

Use the following properties to enable HTML tags in tooltips:

• ToolTipController.AllowHtmlText — for all regular and super tooltips managed by this controller. Assign the ToolTipController component to the control’s ToolTipController property.
• BaseControl.AllowHtmlTextInToolTip — overrides the ToolTip Controller’s setting for a regular tooltip assigned to this control. To specify the tooltip’s content, use the BaseControl.ToolTip property.
• SuperToolTip.AllowHtmlText — overrides the ToolTip Controller’s setting for a particular super tooltip. To assign a super tooltip to a control, use the BaseControl.SuperTip property.
• ToolTipItem.AllowHtmlText — overrides the previous setting for a particular item (area) in a super tooltip. To specify the item’s content, use the ToolTipItem.Text property.

Example

This example demonstrates how to enable HTML tags for the SimpleButton and TextEdit controls.

C#

toolTipController1.AllowHtmlText = true;
simpleButton1.ToolTipController = toolTipController1;
textEdit1.ToolTipController = toolTipController1;
simpleButton1.ToolTip = "I\'ve agree to the <href=www.devexpress.com>terms and conditions</href>.<br/>I want to <b>subscribe</b> to the newsletter.";
textEdit1.ToolTip = "Enter your <b>valid</b> e-mail address.";
//...

private void toolTipController1_HyperlinkClick(object sender, HyperlinkClickEventArgs e) {
    // Handle a click on a hyperlink displayed in a tooltip.
}

VB.NET

toolTipController1.AllowHtmlText = True
simpleButton1.ToolTipController = toolTipController1
textEdit1.ToolTipController = toolTipController1
simpleButton1.ToolTip = "I've agree to the <href=www.devexpress.com>terms and conditions</href>.<br/>I want to <b>subscribe</b> to the newsletter."
textEdit1.ToolTip = "Enter your <b>valid</b> e-mail address."
' ...

Private Sub toolTipController1_HyperlinkClick(ByVal sender As Object, ByVal e As HyperlinkClickEventArgs)
    ' Handle a click on a hyperlink displayed in a tooltip.
End Sub

Example

This example shows how to create a super tooltip with a hyperlink and assign it to a SimpleButton.

The button’s SuperTip property allows you to specify a super tooltip. Use the ToolTipController.AllowHtmlText, SuperToolTip.AllowHtmlText, or ToolTipItem.AllowHtmlText property to enable HTML tags. Handle the ToolTipController.HyperlinkClick event to respond to a click on the hyperlink.

The SuperToolTip Editor allows you to create super tooltips in the designer. To invoke the editor, click the SuperTip property’s ellipsis button in the Properties window.

If you create a tooltip in the designer, you still need to handle the HyperlinkClick event in code. Use the Properties window to assign an event handler.

The example below shows how to create a super tooltip in code.

C#

using DevExpress.Utils;
using System.Diagnostics;

private void Form1_Load(object sender, EventArgs e) {
    // Access the controller that manages tooltips for all controls:
    ToolTipController defaultTooltipController = DevExpress.Utils.ToolTipController.DefaultController;

    // Create and customize a SuperToolTip:
    SuperToolTip sTooltip = new SuperToolTip();
    SuperToolTipSetupArgs args = new SuperToolTipSetupArgs();
    args.Title.Text = "Header";
    args.Contents.Text = "This tooltip contains a hyperlink. Visit the <href=http://help.devexpress.com>DevExpress Knowledge Center</href> to learn more.";
    args.ShowFooterSeparator = true;
    args.Footer.Text = "Footer";
    sTooltip.Setup(args);
    // Enable HTML Text Formatting for the created SuperToolTip:
    sTooltip.AllowHtmlText = DefaultBoolean.True;
    //..or enable this feature for all tooltips:
    //defaultTooltipController.AllowHtmlText = true;

    // Respond to clicking hyperlinks in tooltips:
    defaultTooltipController.HyperlinkClick += defaultTooltipController_HyperlinkClick;

    // Assign a SuperToolTip to the button:
    simpleButton1.SuperTip = sTooltip;
}

void defaultTooltipController_HyperlinkClick(object sender, HyperlinkClickEventArgs e) {
    Process process = new Process();
    process.StartInfo.FileName = (e.Link);
    process.StartInfo.Verb = "open";
    process.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
    try {
        process.Start();
    }
    catch { }
}

VB.NET

Imports DevExpress.Utils

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    ' Access the controller that manages tooltips for all controls:
    Dim defaultTooltipController As ToolTipController = DevExpress.Utils.ToolTipController.DefaultController

    ' Create and customize a SuperToolTip:
    Dim sTooltip As New SuperToolTip()
    Dim args As New SuperToolTipSetupArgs()
    args.Title.Text = "Header"
    args.Contents.Text = "This tooltip contains a hyperlink. Visit the <href=http://help.devexpress.com>DevExpress Knowledge Center</href> to learn more."
    args.ShowFooterSeparator = True
    args.Footer.Text = "Footer"
    sTooltip.Setup(args)
    ' Enable HTML Text Formatting for the created SuperToolTip:
    sTooltip.AllowHtmlText = DefaultBoolean.[True]
    '..or enable this feature for all tooltips:
    'defaultTooltipController.AllowHtmlText = True

    ' Respond to clicking hyperlinks in tooltips:
    AddHandler defaultTooltipController.HyperlinkClick, AddressOf defaultTooltipController_HyperlinkClick

    ' Assign a SuperToolTip to the button:
    SimpleButton1.SuperTip = sTooltip
End Sub

Private Sub defaultTooltipController_HyperlinkClick(sender As Object, e As HyperlinkClickEventArgs)
    Dim process As New Process()
    process.StartInfo.FileName = (e.Link)
    process.StartInfo.Verb = "open"
    process.StartInfo.WindowStyle = ProcessWindowStyle.Normal
    Try
        process.Start()
    Catch
    End Try
End Sub