ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Framework.Contracts Namespace / Gallery Class / HasFailedToLoadItems Property

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    HasFailedToLoadItems Property
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    Gets or sets the flag indicating the gallery has not initialized properly.
    Syntax
    protected bool HasFailedToLoadItems {get; set;}
    Protected Property HasFailedToLoadItems As Boolean
    Remarks
    Set this flag along with an updated LoadingMessage if your gallery has failed to load its items properly. These should be set in your OnDropDownOpened override. If this flag is not set, the default progressor that appears in the drop down will remain visible as it is waiting for items to load.
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also