Class LoadMoreView

Represents a customized Xamarin.Forms.View that loads new data items in runtime.

Inheritance

System.Object

LoadMoreView

Implements

System.IDisposable

Namespace: Syncfusion.SfDataGrid.XForms

Assembly: Syncfusion.SfDataGrid.XForms.dll

Syntax

public class LoadMoreView : Layout<View>, IDisposable

Remarks

A LoadMoreView represents a customized Xamarin.Forms.View that is loaded either at the top or bottom based on the LoadMorePosition property.

LoadMore option can be enabled in a SfDataGrid control, by setting the AllowLoadMore property to true and by setting the LoadMoreCommand property. When the LoadMore is enabled, the SfDataGrid provides an option to load a subset of data to its data source in the runtime using the LoadMoreCommand.

Constructors

LoadMoreView()

Initializes a new instance of the LoadMoreView class.

Declaration

public LoadMoreView()

Properties

LoadMoreCommand

Gets or sets the command to be executed when an end-user taps the LoadMoreView to load new data items in SfDataGrid.

Declaration

public ICommand LoadMoreCommand { get; set; }

Property Value

Type	Description
System.Windows.Input.ICommand	The command to be executed when load more view is clicked.

Remarks

SfDataGrid allows to load more items in the SfDataGrid, when the last data of the collection is reached, by executing the LoadMoreCommand when an end-user taps the LoadMoreView of SfDataGrid.

Examples

dataGrid.AllowLoadMore = true;
dataGrid.LoadMoreView.LoadMoreCommand = new Command(ExecuteLoadMoreCommand);

private async void ExecuteLoadMoreCommand()
{
    this.dataGrid.IsBusy = true;
    await Task.Delay(new TimeSpan(0, 0, 5));
    viewModel.LoadMoreItems();
    this.dataGrid.IsBusy = false;
}

See Also

IsBusy

Methods

Dispose()

Perform final clean up before it is released from memory.

Declaration

public void Dispose()

Dispose(Boolean)

Releases the unmanaged resources used by the component and optionally releases the managed resources.

Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing	if true - release both managed and unmanaged resources; if false - release only unmanaged resources.

InitLoadMore()

Initializes the required properties for the LoadMoreView.

Declaration

protected virtual void InitLoadMore()

LayoutChildren(Double, Double, Double, Double)

Positions and sizes the children of the LoadMoreView.

Declaration

protected override void LayoutChildren(double x, double y, double width, double height)

Parameters

Type	Name	Description
System.Double	x	A value that represents the x coordinate of the child.
System.Double	y	A value that represents the y coordinate of the child.
System.Double	width	A value that represents the width of the child.
System.Double	height	A value that represents the height of the child.

OnMeasure(Double, Double)

This method is called during the measure pass of a layout cycle to get the desired size of an element.

Declaration

protected override SizeRequest OnMeasure(double widthConstraint, double heightConstraint)

Parameters

Type	Name	Description
System.Double	widthConstraint	The available width for the element to use.
System.Double	heightConstraint	The available height for the element to use.

Returns

Type	Description
Xamarin.Forms.SizeRequest	A Xamarin.Forms.SizeRequest which contains the desired size of the element.

UpdateLoadMoreStyle(DataGridStyle)

Updates the style of the LoadMoreView.

Declaration

protected virtual void UpdateLoadMoreStyle(DataGridStyle style)

Parameters

Type	Name	Description
DataGridStyle	style	The DataGridStyle.

Implements

System.IDisposable