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How to add an attribute to an HTML element and change its value at runtime in WinForms HTMLUIControl?

Platform: WinForms |
Control: HTMLUIControl |
Published Date: April 30, 2011 |
Last Revised Date: January 5, 2020

HTML element

The attributes to the HTML elements can be added using the Add method of the Attributes property, as shown in the code snippet below.

C#

// textBox is an INPUT element of type 'text' in the HTML document
if(this.textBox.Attributes.Contains("style") == false)
   this.textBox.Attributes.Add("style");

 

VB

' textBox is an INPUT element of type 'text' in the HTML document
If Me.textBox.Attributes.Contains("style") = False Then
   Me.textBox.Attributes.Add("style")
End If

The element's attribute can be changed at run time by assigning a suitable value to the Value property of that particular attribute, as shown in the code snippet below.

C#

// textBox is an INPUT element of type 'text' in the HTML document
this.textBox.Attributes["style"].Value = "background-color:red";

 

VB

' textBox is an INPUT element of type 'text' in the HTML document
Private Me.textBox.Attributes("style").Value = "background-color:red"

 

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