CODEWITHSUNDEEP
c#wpfvisual-studiouniformgrid
user10246017
user10246017

Reputation:

Get the clicked rectangle in 2d array

I have a 2D array that contains rectangles. They are stored in a dynamic UniformGrid. How do I find out which rectangle in the array was MouseDown?

I tried this but I keep getting [0,0]:

if (e.OriginalSource is Shape s)
{
    cellRow = (int)s.GetValue(Grid.RowProperty);
    cellColumn = (int)s.GetValue(Grid.ColumnProperty);
    rectangle[cellRow,cellColumn].Fill = new SolidColorBrush(Colors.Black);
}

And this is how I generated the rectangles:

rectangle = new Rectangle[rowcol, rowcol];
for (int x = 0; x < rowcol; x++)
{
    for (int y = 0; y < rowcol; y++)
    {
        rectangle[y, x] = new Rectangle { Stroke = Brushes.Black, StrokeThickness = 0.5, Fill = Brushes.White };
        GameUniformGrid.Children.Add(rectangle[y, x]);
    }
}

The MouseDown event in xaml: <UniformGrid x:Name="GameUniformGrid" HorizontalAlignment="Left" Height="272" VerticalAlignment="Top" Width="272" Grid.Row="0" Grid.Column="0" Rectangle.MouseDown="ToggleGrid"/>

Upvotes: 0

Views: 129

Answers (1)

TAHA SULTAN TEMURI
TAHA SULTAN TEMURI

Reputation: 5291

I think the problem is with initializing a rectangle, When you work with multidimentional array you have some rows and column and what you are doing is using row only in both row,column. What if rowcol =0 ? the loop will not run because this condition.

x < rowcol (0<0);

You should 

rectangle = new Rectangle[row, col];
    for (int x = 0; x < row; x++)
    {
        for (int y = 0; y < col; y++)
        {
            rectangle[y, x] = new Rectangle { Stroke = Brushes.Black, StrokeThickness = 0.5, Fill = Brushes.White };
            GameUniformGrid.Children.Add(rectangle[y, x]);
        }
    }

(For example)

where row = 2 ,col =2

Upvotes: 0

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