Kendo Grid DetailTemplate, condition expression of accessing SubGrid value - templates

Question

I have a Master/Child grid structure like so:
Parent Grid:
#(Html.Kendo().Grid<ElementViewModel>()
.Name("gridEle")
.Columns(cols =>
{
cols.Bound(e => e.EleNum)
})
.DataSource(dataSource => dataSource
.Ajax()
.Read(read => read.Action("GetElements", "Rating", pi))
)
.ClientDetailTemplateId("tempSubEle")
)
Child Grid as DetailTemplate:
<script id="tempSubEle" type="text/kendo-tmpl">
#(Html.Kendo().Grid<SubElementViewModel>()
.Name("gridSubEle_#=EleID#")
.Columns(cols =>
{
cols.Bound(e => e.Rating)
.ClientTemplate("<input type='checkbox' value='1' " +
"#if(Rating==1){#checked='checked'#}# />" );
})
.DataSource(dataSource => dataSource
.Ajax()
.Read(read => read.Action("GetSubElementsByElementID", "Rating", new {eID = "#=EleID#" }))
)
.ToClientTemplate()
)
</script>
The Problem:
I have a #if{# ... #}# statement in the column ClientTemplate, however the Rating value is from the Parent Grid not the current Child Grid (Parent Grid happen has a column also named 'Rating'), to prove that it is from Parent Grid, if I change Rating to a column that only exists in the Child grid, i.e. SubEleID, it gives error at browser, saying that SubEleID is not found.
The Question:
so what is the syntax for Rating gets the Child Grid value?
just for the sake of trying, I even tried: data.Rating, or $(this).Rating, none worked.
Please advise,
Thank you

Answer 1

# in some kendo template is used for parent property (like you use for the name : gridSubEle_#=EleID#, but for some child property, you have to escape the # with \\ :
cols.Bound(e => e.Rating)
.ClientTemplate("<input type='checkbox' value='1' " +
"\\#if(Rating==1){\\#checked='checked'\\#}\\# />" );