c# - DataGridView dynamic selected row Color -

i working on custom datagridview derived system.windows.forms.datagridview.

in desired grid rows may have different colors due state, , want current row little different other rows, , difference in color being highlighted dynamic rather being static.

when select row, want keep previous color of row, highligh color relatively, have done whit code snippet:

color oldcolor; private void dgvmain_selectionchanged(object sender, eventargs e) {     oldcolor = dgvmain.currentrow.defaultcellstyle.backcolor;     color newcolor = color.fromargb(oldcolor.r  < 235 ? oldcolor.r + 20 : 0,                                     oldcolor.g, oldcolor.b);     dgvmain.currentrow.defaultcellstyle.backcolor = newcolor; } 

but have 2 problems:

1. when select row, first code changes row's color, row gets selected color changes default selection color.
2. when row loses selection (is deselcted) can not recover it's old color - have oldcolor don't know when currentrow changed, know rows have had changes in selection state, don't know row previous row change color.

is there workaround this? event or special code?

---

and if know better solution highlighting colors, i'll appreciate help.

there separate property selectionbackcolor in defaultcellstyle. use change selection color. can have default cell style stored , use restoring default values.

sample code:

public class betterdatagridview : datagridview {     private datagridviewcellstyle defaultstyle = new datagridviewcellstyle();     public betterdatagridview()     {      }      protected override void onrowstatechanged(int rowindex, datagridviewrowstatechangedeventargs e)     {         base.onrowstatechanged(rowindex, e);         if (rowindex > -1)         {             datagridviewrow row = this.rows[rowindex];             if (row.selected)             {                 color oldcolor = this.currentrow.defaultcellstyle.selectionbackcolor;                 e.row.defaultcellstyle.selectionbackcolor = color.fromargb(oldcolor.r < 235 ? oldcolor.r + 20 : 0,                                     oldcolor.g, oldcolor.b);             }             else if (!row.selected)             {                 e.row.defaultcellstyle.selectionbackcolor = defaultstyle.selectionbackcolor;             }         }     } }