How to move or swap two GridView items?

Question

Hi, 
am developing a windows store 8.1 app.
I have four GridView items in the GridView like the above figure.
Now i want to swap the GridView Items.
Now i click on 1(GridView Item) and then later i click on 4(Grid View Item)
Then both items has to be swap(4 should be replaced by 1 and 1 should be replaced by 4).
How can i achieve this?
I don't wanna use  CanReorderItems="True" AllowDrop="True" CanDragItems="True" these properties to swap.
Any help please?

Answer 1

<Page
x:Class="GridViewItemSwap.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:GridViewItemSwap"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<GridView x:Name="gridview" IsItemClickEnabled="True" ItemClick="gridview_ItemClick" >
<GridView.ItemTemplate >
<DataTemplate >
<Border Margin="12" Width="100" Height="100" Background="Blue" >
<TextBlock Text="{Binding}"/>
</Border>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
</Grid>
</Page>
namespace GridViewItemSwap
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
private int? firstvalue;
private ObservableCollection<Int32> data = new ObservableCollection<int>();
public MainPage()
this.InitializeComponent();
for(int i =0 ; i <4; i++)
data.Add(i);
gridview.ItemsSource = data;
private void gridview_ItemClick(object sender, ItemClickEventArgs e)
if (firstvalue.HasValue )
Int32 secondvalue = (Int32)e.ClickedItem;
var firstindex= data.IndexOf(firstvalue.Value);
var secondindex = data.IndexOf(secondvalue);
data[firstindex] = secondvalue;
data[secondindex] = firstvalue.Value ;
firstvalue = null;
else
firstvalue = (Int32)e.ClickedItem;
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