fixed bug in grid.ts
fixed bug in grid.ts

killyosaur/ag-grid,ceolter/ag-grid,killyosaur/ag-grid,ceolter/ag-grid,ceolter/angular-grid,ceolter/angular-grid,seanlandsman/ag-grid,killyosaur/ag-grid,seanlandsman/ag-grid,seanlandsman/ag-grid