Selectively disable items on dropdown

I have below sample where dropDown has few items. I want to disable few of them based on template/condition. "olor:red" in below case, how to do that?
< RadzenDropDown AllowClear="false"
AllowFiltering="true"
FilterOperator="StringFilterOperator.Contains"
FilterCaseSensitivity="FilterCaseSensitivity.CaseInsensitive"
Data="@availableStatus.Keys"
TValue="string"
Style="width:300px"
Placeholder="Testing conditional dropdown...">
< Template Context="data" >
@if (availableStatus[ data.ToString() ])
{
< span style="color:green;" >@data.ToString()< /span >
}
else
{
< span class="oi oi-check" style="color:red" >@data.ToString()< /span >
}
< /Template >
< /RadzenDropDown >

Hi @ShishirDahal,

Disabling specific items in the dropdown isn't supported at the moment.

I unblocked myself doing this, would be great if you can add this on your side.
< Template Context="data" >
@if (availableStatus[data.ToString()])
{
< span style="color:black;" onclick="@(TestClick(data))" >@data.ToString()< /span >
}
else
{
< span class="oi oi-check" style="color:lightgray;pointer-events:none" >@data.ToString()< /span >
}
< /Template >

Hi @ShishirDahal,

It does not work for me. I can't avoid clicking on disabled items.