DxPopupBase.HeaderContentTemplate Property

Specifies a template for content of the pop-up window’s header.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

[Parameter]
public RenderFragment<IPopupElementInfo> HeaderContentTemplate { get; set; }

Property Value

Type	Description
RenderFragment<IPopupElementInfo>	The header content.

Remarks

Use the HeaderContentTemplate property to display any UI render fragment in the pop-up window header’s content area. This template does not affect the default content area rendering (that is, paddings, alignment, etc.)

The HeaderContentTemplate accepts an IPopupElementInfo object as the context parameter. You can use the parameter’s CloseCallback property to implement the Close button.

The following image highlights the content area of Popup elements in red.

Implement two-way binding for the Visible property to show the Popup in code and update the property value when a user closes the Popup.

<div @onclick="@(() => PopupVisible = true)">
    <p>CLICK TO SHOW A POP-UP WINDOW</p>
</div>

<DxPopup @bind-Visible="@PopupVisible"
         BodyText="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris sit amet metus vel
             nisi blandit tincidunt vel efficitur purus. Nunc nec turpis tempus, accumsan orci auctor,
             imperdiet mauris. Fusce id purus magna.">
    <HeaderContentTemplate>
        <h2>Header</h2>
    </HeaderContentTemplate>
</DxPopup>

@code {
    bool PopupVisible { get; set; } = false;
}

Run Demo: Popup - Customization

You can also use the following properties to customize the header:

• HeaderText - Allows you display plain text and applies all predefined appearance settings. The HeaderContentTemplate property takes priority over the HeaderText property.
• HeaderTemplate - Allows you to customize the entire header. Predefined appearance settings do not apply. This template has the highest priority over the HeaderText and HeaderContentTemplate properties.

Disable the ShowHeader property to hide the header.

For more information about Popup customization, refer to the following help topic: Content and Appearance.