I did It
arrayCollection.addItem({
name : employeeName.text,
id : employeeID.text,
email : employeeEmail.text,
gender : genderOption.selectedValue,
qual : getCheckBoxexValues(),
address : employeeAddress.text,
imageData: loadFile.data
});
In grid
<s:GridColumn headerText="Employee" id="imageColumn" dataField="imageData" >
<s:itemRenderer>
<fx:Component>
<s:GridItemRenderer>
<s:Image id="image" width="120" height="80" source="{data.imageData}" visible="true" />
</s:GridItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:GridColumn>
Thank you