WindowCloseReason Enum

Lists actions that close the Window.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

C#

public enum WindowCloseReason

Members

Name	Description
Programmatically	You set the Visible property to false or call the CloseAsync method.
EscapePress	A user presses Escape.
CloseButtonClick	A user clicks a custom Close button (if you called the predefined CloseCallback to create this button).

Related API Members

The following properties accept/return WindowCloseReason values:

• WindowClosingEventArgs.CloseReason

Remarks

You can handle the Window’s Closing event to process close actions. The event argument’s CloseReason property identifies which action closes the Window. The property returns one of the WindowCloseReason enumeration values. You can set the Cancel property to true to cancel a close action.

In the following example, neither the Close button in the header nor the custom OK button closes the Window until a user enables the checkbox in the footer:

Razor

<DxButton Id="showDDbtton" Click="() => IsOpen = true">SHOW A WINDOW</DxButton>
<DxWindow Width="400"
            @bind-IsOpen="@IsOpen"
            ShowFooter="true"
            HeaderText="DevExpress EULA"
            Closing="EulaClosing"
            Closed="EulaClosed">
    <BodyTextTemplate>
        <p>
            The terms of our license are fully outlined/described in the Developer Express Inc End User
            License Agreement (EULA) included with our product installations. Before you can install and use
            a Developer Express Inc product, you must read, understand and accept the terms/conditions of
            our EULAs. <a target="" _blank"" rel="" noopener noreferrer"" href="" https: //www.devexpress.com/support/eulas/"">More info...</a>
        </p>
    </BodyTextTemplate>
    <FooterTextTemplate>
        <DxCheckBox style="margin-left: 0; margin-right: auto;" @bind-Checked="@EulaAccepted">
            I accept the terms of the EULA
        </DxCheckBox>
        <DxButton RenderStyle="ButtonRenderStyle.Primary" Text="OK" Click="context.CloseCallback" />
    </FooterTextTemplate>
</DxWindow>

@code {
    bool IsOpen { get; set; } = false;
    bool EulaAccepted { get; set; }

    void EulaClosing(WindowClosingEventArgs args) {
        if (args.CloseReason == WindowCloseReason.Programmatically) {
            args.Cancel = !EulaAccepted;
        }
    }
    void EulaClosed(WindowClosedEventArgs args) {
        EulaAccepted = false;
    }
}