Class ScrollSettings

Sets the diagram's current zoom value, zoom factor, scroll state, and viewport size.

Inheritance

System.Object

ScrollSettings

Namespace: Syncfusion.Blazor.Diagram

Assembly: Syncfusion.Blazor.dll

Syntax

public class ScrollSettings : OwningComponentBase

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings @bind-VerticalOffset="@verticalOffset" @bind-HorizontalOffset="@horizontalOffset" @bind-ScrollLimit="@scrollLimit" @bind-CurrentZoom="@currentZoom" @bind-MinZoom="minZoom" @bind-MaxZoom="@maxZoom">
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    double verticalOffset { get; set; } = 300;
    double horizontalOffset { get; set; } = -1000;
    ScrollLimitMode scrollLimit { get; set; } = ScrollLimitMode.Infinity;
    double currentZoom { get; set; } = 1;
    double minZoom { get; set; } = 0.2;
    double maxZoom { get; set; } = 1.5;
}

Constructors

ScrollSettings()

Declaration

public ScrollSettings()

Properties

ChildContent

Sets the child content for the ScrollSettings

Declaration

public RenderFragment ChildContent { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.RenderFragment

CurrentZoom

Gets or sets the diagram's currentZoom value.

Declaration

public double CurrentZoom { get; set; }

Property Value

Type	Description
System.Double	The default value is 1

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings  @bind-CurrentZoom="@currentZoom" >
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    double currentZoom { get; set; } = 1;
}

CurrentZoomChanged

Specifies the callback to trigger when the current zoom changes.

Declaration

public EventCallback<double> CurrentZoomChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<System.Double>

HorizontalOffset

Gets or sets the horizontal offset of the scroller.

Declaration

public double HorizontalOffset { get; set; }

Property Value

Type	Description
System.Double

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings  @bind-HorizontalOffset="@horizontalOffset">
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    double horizontalOffset { get; set; } = -1000;
}

HorizontalOffsetChanged

Specifies the callback to trigger when the horizontal offset changes.

Declaration

public EventCallback<double> HorizontalOffsetChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<System.Double>

MaxZoom

Gets or sets the scroller's maximum zoom value.

Declaration

public double MaxZoom { get; set; }

Property Value

Type	Description
System.Double	The default value is 30

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings  @bind-MaxZoom="@maxZoom">
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    double maxZoom { get; set; } = 1.5;
}

MaxZoomChanged

Specifies the callback to trigger when the maximum zoom changes.

Declaration

public EventCallback<double> MaxZoomChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<System.Double>

MinZoom

Gets or sets the scroller's minimum zoom value.

Declaration

public double MinZoom { get; set; }

Property Value

Type	Description
System.Double	The default value is 0.2

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings  @bind-MinZoom="minZoom" >
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    double minZoom { get; set; } = 0.2;
}

MinZoomChanged

Specifies the callback to trigger when the minimum zoom changes.

Declaration

public EventCallback<double> MinZoomChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<System.Double>

ScrollLimit

Gets or sets the upper limit of values of the scrollable range.

Declaration

public ScrollLimitMode ScrollLimit { get; set; }

Property Value

Type	Description
ScrollLimitMode	The default value will be Diagram

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings  @bind-ScrollLimit="@scrollLimit" >
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    ScrollLimitMode scrollLimit { get; set; } = ScrollLimitMode.Infinity;
}

ScrollLimitChanged

Specifies the callback to trigger when the scroll limit changes.

Declaration

public EventCallback<ScrollLimitMode> ScrollLimitChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<ScrollLimitMode>

VerticalOffset

Gets or sets the Vertical offset of the scroller.

Declaration

public double VerticalOffset { get; set; }

Property Value

Type	Description
System.Double

Examples

<SfDiagramComponent Width="1000px" Height="1000px">
    <ScrollSettings @bind-VerticalOffset="@verticalOffset" />
    </ScrollSettings>
</SfDiagramComponent>    
@code
{
    double verticalOffset { get; set; } = 300;
}

VerticalOffsetChanged

Specifies the callback to trigger when the vertical offset changes.

Declaration

public EventCallback<double> VerticalOffsetChanged { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.EventCallback<System.Double>

Methods

BuildRenderTree(RenderTreeBuilder)

Declaration

protected override void BuildRenderTree(RenderTreeBuilder __builder)

Parameters

Type	Name	Description
Microsoft.AspNetCore.Components.Rendering.RenderTreeBuilder	__builder

Dispose()

This method releases all unmanaged resources.

Declaration

public void Dispose()

OnAfterRenderAsync(Boolean)

Method invoked after each time the component has been rendered.

Declaration

protected override Task OnAfterRenderAsync(bool firstRender)

Parameters

Type	Name	Description
System.Boolean	firstRender	Set to true for the first time component rendering; otherwise gets false.

Returns

Type	Description
System.Threading.Tasks.Task	A System.Threading.Tasks.Task representing any asynchronous operation.

OnInitializedAsync()

Method invoked when the component is ready to start.

Declaration

protected override Task OnInitializedAsync()

Returns

Type	Description
System.Threading.Tasks.Task	A System.Threading.Tasks.Task representing any asynchronous operation.

OnParametersSetAsync()

Method invoked when any changes in component state occur.

Declaration

protected override Task OnParametersSetAsync()

Returns

Type	Description
System.Threading.Tasks.Task	="Task".