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Change Menu Item Dynamically

The items visible in the Context Menu can be changed dynamically based on the target. To achieve this behavior, initialize Context Menu with all items using MenuItems component and then you can Hide/Show items using Hidden property by updating its state in OnOpen event.

@using Syncfusion.Blazor.Navigations

<div id="target">Right click/Touch hold to open the ContextMenu </div>
<SfContextMenu Target="#target" TValue="MenuItem">
    <MenuItems>
        <MenuItem Text="Cut" Hidden="@hideItems1"></MenuItem>
        <MenuItem Text="Copy" Hidden="@hideItems1"></MenuItem>
        <MenuItem Text="Paste" Hidden="@hideItems1"></MenuItem>
        <MenuItem Text="Add" Hidden="@hideItems2"></MenuItem>
        <MenuItem Text="Edit" Hidden="@hideItems2"></MenuItem>
        <MenuItem Text="Delete" Hidden="@hideItems2"></MenuItem>
    </MenuItems>
    <MenuEvents TValue="MenuItem" OnOpen="@BeforeOpenHandler"></MenuEvents>
</SfContextMenu>

@code {
    private bool hideItems1;
    private bool hideItems2 = true;
    private void BeforeOpenHandler()
    {
        hideItems1 = !hideItems1;
        hideItems2 = !hideItems2;
    }
}

<style>
    #target {
        border: 1px dashed;
        height: 150px;
        padding: 10px;
        position: relative;
        text-align: justify;
        color: gray;
        user-select: none;
    }
</style>

Output be like

Context Menu Sample