You should put this code into grids Init. It has to be set only once.

>I have been using the below code for some time but it seems it is quite slow, what is a way to just change the grid colors for the row the user changes, rather than have this code run on the entire grid with every row change.
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>

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>Thisform.Grid1.SetAll("DynamicForeColor",; 
>"IIF((<Var> == ALLTRIM(<tablename>.<fieldname>) AND <boolean1 field>) OR ;
>     (<Var> == ALLTRIM(<tablename>.<fieldname>) AND <boolean2 field>), RGB(128,64,64), RGB(255,255,255))",;
>"Column") 
>
>Thisform.Grid1.SetAll("DynamicBackColor",; 
>"IIF((<Var> == ALLTRIM(<tablename>.<fieldname>) AND <boolean1 field>) OR ;
>     (<Var> == ALLTRIM(<tablename>.<fieldname>) AND <boolean2 field>), RGB(128,64,64), RGB(255,255,255))",;
>"Column") 
>
>

>
>Should I put the color code on AfterRowColumnChange?