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How do I toggle the visibility of an HTML element in HTMLUI at runtime?

 

Each HTML element in the HTMLUI has an xVisible attribute by default that helps the user to toggle the visibility of a particular element. Since the xVisible is a bool property the value to be set is either true or false as string.

The following code snippet shows how an element's visibility is toggled on the execution of an event.

C#

[HTML]

Cell Toggle

Cell Toggle

C#

IHTMLElement image = Global.Document.GetElementByUserId("img");

image.Click += new EventHandler(image_Click);

IHTMLElement[] elem = this.htmluiControl1.Document.GetElementsByName("td");

public void image_Click(object sender, EventArgs e)

{

string visibleString = "";

htmluiControl1.BeginUpdate();

if(this.bDescriptionHidden == false)

visibleString = "false";

else

visibleString = "true";

this.bDescriptionHidden = !this.bDescriptionHidden;

foreach (IHTMLElement description in elem)

{

if(description.ID == "tdpopup")

description.Attributes["xVisible"].Value = visibleString;

}

htmluiControl1.EndUpdate();

this.htmluiControl1.Refresh();

}

VB

Private image As IHTMLElement = Global.Document.GetElementByUserId("img")

Private image.Click += New EventHandler(image_Click)

Private elem As IHTMLElement() = Me.htmluiControl1.Document.GetElementsByName("td")

Public Sub image_Click(ByVal sender As Object, ByVal e As EventArgs)

Dim visibleString As String = ""

htmluiControl1.BeginUpdate()

If Me.bDescriptionHidden = False Then

visibleString = "false"

Else

visibleString = "true"

End If

Me.bDescriptionHidden = Not Me.bDescriptionHidden

For Each description As IHTMLElement In elem

If description.ID = "tdpopup" Then

description.Attributes("xVisible").Value = visibleString

End If

Next description

htmluiControl1.EndUpdate()

Me.htmluiControl1.Refresh()

End Sub

Article ID: Published Date: Last Revised Date: Platform: Control:
812 04/30/2011 07/10/2014 Windows Forms HTMLUIControl
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