OnPatchCSSForFormElements Method

In This Topic

This virtual method can be overridden to inject custom CSS into the viewer space. The styles will be applied to the form elements of the specified type.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable Function OnPatchCSSForFormElements() As List(Of String)

public virtual List<string> OnPatchCSSForFormElements()

public:
virtual List<String^>^ OnPatchCSSForFormElements();

Return Value

List of string with one item per selector and CSS.

Example

...
public virtual List<string> OnPatchCSSForFormElements()
{
    List<string> styles = new List<string>()
    {
        "textarea { color: blue; }", //Multi-Line Edit
        "input[type='edit'] { color: red; }", //Single-Line Edit
        "input[type='checkbox'] { accent-color: green; }", //Checkbox color when checked
        "select { color: violet; background-color: black; }", //Combobox
        "input[type='button'] { outline: 1px solid blue; }", //Button
    };
    return styles;
}
...

Requirements

Platforms: Windows 10 (Version 21H2 - 22H2), Windows 11 (22H2 - 25H2), Windows Server 2016 - 2025
.NET: .NET Framework 4.8, .NET 8, .NET 9, .NET 10

Reference

WebReportViewerController Class
WebReportViewerController Members

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