c# - Changing color of a single cell in WPF Datagrid -

c# - Changing color of a single cell in WPF Datagrid -

i have wpf datagrid variable number of columns , populated @ runtime 2d array of string[][].

string[] info = .....; datagrid.itemssource = data;

i need chance cell colors based on values. these values defined user during execution. examples found changing cell colors utilize triggers on xaml , value known in design time.

so i'm changing background of cell this:

datagridcell cell = datagridutils.getcell(datagrid, i, j); cell.background = new solidcolorbrush(colors.darkgreen);

and getcell function:

private datagridcell getcell(int rowindex, int colindex, datagrid dg) { datagridrow row = dg.itemcontainergenerator.containerfromindex(rowindex) datagridrow; datagridcellspresenter p = getvisualchild<datagridcellspresenter>(row); datagridcell cell = p.itemcontainergenerator.containerfromindex(colindex) datagridcell; homecoming cell; }

at first glance seems doing ok, can see cell value in green. if scroll datagrid way downwards , go cell in greenish changes random cell nad more cells turning green. if maintain going , downwards cells in greenish maintain changing randomly.

i know sounds weird, there's 1 place in code changes cell colors, , it's in button click. don't know how happening when scrolling datagrid.

i read somewhere itemcontainergenerator it's not elegant solution , should avoided. it's way managed create work.

is there improve way alter background color of cell? can triggers without knowing values @ design time? if so, how?

datagrid has virtualizationmode default recycling means it'll reuse datacell generated improve performance. won't have create n times of controls.

add datagrid

virtualizingstackpanel.virtualizationmode="standard"

be aware it'll impact performance , wpf create n times of control.

c# wpf .net-4.5