I am trying to programmatically add images to a list/array and access them in a for each loop to change their source image - xamarin.forms

Question

I have been trying to add images to an array and then access their properties to change their source image in a loop.
Detailed: I create a grid with a layout for each for each grid element, in that layout there is a GridImage, who's source folder is set to "ClosedFolder.png", when I click one of the layouts it should change the clicked layouts folder to "OpenFolder.png".
for (int eachCount = 0; eachCount <= MaxRows / MaxCols; eachCount++)
{
Selectedrid.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(80, GridUnitType.Absolute) });
for (int newCol = 0; newCol <= MaxCols; newCol++)
{
for (int newRow = 0; newRow <= MaxRows / MaxCols; newRow++)
{
if (folderIndex >= DirectoryArrayList.Count) { break; }
var folder = DirectoryArrayList[folderIndex];
var label = new Label()
{
Text = folder.Name,
FontSize = 12,
VerticalTextAlignment = TextAlignment.Center,
HorizontalTextAlignment = TextAlignment.Center
};
var GridImage = new Image() { Source = "ClosedFolder.png", StyleId = "Image" };
var GridTap = new TapGestureRecognizer();
var Layout = new StackLayout() { StyleId = "StackContent" };
var folderSelection = _mainFolder + "/" + folder.Name;
GridTap.Tapped += async(object sender, EventArgs e) =>
{
FileHandler.CreateTextFiles(folderSelection, "File_" + FileID + ".txt");
files = FolderOptions.AddFilesToList(folderSelection);
lst.ItemsSource = files;
//foreach (Image img in ImageList) I know this i incorrect, just an example of what I think!
//{
// img.Source = "ClosedFolder.png";
//}
GridImage.Source = "OpenFolder.png"; // clicked layout gets its openfolder.png
};
Layout.Children.Add(label);
Layout.Children.Add(GridImage);
Layout.GestureRecognizers.Add(GridTap);
Selectedrid.Children.Add(Layout, newCol, newRow);
folderIndex += 1;
FileID += 1;
}
}
}
Not sure on the declaration of the array and how to implement it.

Answer 1

I added the following into my BasicGrid method ...
var GridImage = new Image() { Source = "ClosedFolder.png", StyleId = "Image" };
var ImageList = new List<Image>{};
ImageList.Add( GridImage );
for (var i = 0; i < ImageList.Count; i++)
{
var img = ImageList[i];
img.Source = "ClosedFolder.png";
} GridImage.Source = "OpenFolder.png"
Just adding to say that Jason's information is the most likely direction I will go in, but as I am still learning it will take me time and I dint want to keep this open while I do that :-)