Get ref to element inside an if

Question

User-336073119 posted

Hi, it looks like @ref are not set on components inside conditionals. i.e.

@if (null == @_SelectedTypeMap)
            {
                        <MudText>@_L["msg_NothingSelected"]</MudText>
            }
            else
            {
                <MudTable @ref=RecTypeTable ServerData="@(new Func<TableState, Task<TableData<RecordTypeDTO>>>(GetTypesForMap))" Dense="true" >

then the ref to the table is never set, however I need it to enable loading of data. Is there something I am missing about using ref?

Answer 1

User475983607 posted

The code runs when the component initially loads.  I'm not sure if your design works since you only posted the condition but I think both component should be loaded.  Then just toggle visibility.  

Answer 2

User-336073119 posted

It looks like it an issue with the MudTable, not loading the data, the place I was trying to access the ref was before in the FN that set the SelectedTypeMap, so at that point the ref should be null, it is however set on a 2nd selection. Had to dig a bit deeper as not obvious from first error of null exception.