Z-order in the Blazor Image Editor Component

24 Feb 20252 minutes to read

We are excited to introduce z-order support in the Image Editor. It’s a powerful tool that allows users to adjust the positioning of annotations. This feature is particularly useful for designing personalized templates like greeting cards or posters, where managing the layering of multiple annotations is crucial for a polished final product.

Types of adjustment in the Image Editor z-order support.

• Bring forward - Switch the selected annotation with the annotation one layer ahead of it.

• Sent Backward - Switch the selected annotation with the annotation one layer behind it.

• Bring to Front - Move the selected annotation to ahead of all other annotations.

• Send to Back - Move the selected annotation to behind all other annotations.

In the following example, you can use the z-order support.

@using Syncfusion.Blazor.ImageEditor
@using Syncfusion.Blazor.Buttons

<div style="padding-bottom: 15px">
    <SfButton OnClick="DrawShapes">Draw Shapes</SfButton>
    <SfButton OnClick="BringForward">Bring Forward</SfButton>
    <SfButton OnClick="SendBackward">Send Backward</SfButton>
    <SfButton OnClick="BringToFront">Bring To Front</SfButton>
    <SfButton OnClick="SendToBack">Send To Back</SfButton>
</div>

<SfImageEditor @ref="ImageEditor" Toolbar="customToolbarItem" Height="400">
    <ImageEditorEvents Created="OpenAsync"></ImageEditorEvents>
</SfImageEditor>

@code {
    SfImageEditor ImageEditor;
    private List<ImageEditorToolbarItemModel> customToolbarItem = new List<ImageEditorToolbarItemModel>() { };
    private async void OpenAsync()
    {
        await ImageEditor.OpenAsync("https://ej2.syncfusion.com/react/demos/src/image-editor/images/bridge.png");
    }

    private async void DrawShapes()
    {
        ImageDimension Dimension = await ImageEditor.GetImageDimensionAsync();
        await ImageEditor.DrawRectangleAsync(Dimension.X.Value + 10, Dimension.Y.Value + 10, 150, 70, 2, "", "red");
        await ImageEditor.DrawRectangleAsync(Dimension.X.Value + 20, Dimension.Y.Value + 20, 150, 70, 2, "", "red");
        await ImageEditor.DrawRectangleAsync(Dimension.X.Value + 30, Dimension.Y.Value + 30, 150, 70, 2, "", "green");
        await ImageEditor.DrawRectangleAsync(Dimension.X.Value + 40, Dimension.Y.Value + 40, 150, 70, 2, "", "red");
    }

    private async void BringForward()
    {
        await ImageEditor.BringForwardAsync("shape_3");
    }

    private async void SendBackward()
    {
        await ImageEditor.SendBackwardAsync("shape_3");
    }

    private async void BringToFront()
    {
        await ImageEditor.BringToFrontAsync("shape_3");
    }

    private async void SendToBack()
    {
        await ImageEditor.SendToBackAsync("shape_3");
    }
}