Version 3.1.0 v 3.0.10 Build Errors

Radzen.Blazor Components
1

Hi

I installed version 3.1.0 and started to get build errors, in particular:

CS0266 Cannot implicitly convert type 'object' to 'WarrantModels.Warrant'. An explicit conversion exists (are you missing a cast?)

If I revert to version 3.0.10 all is Ok

On investigation the builder emits different g.cs code under each version for the same line of code:

ERROR g.cs line radzen 3.1.0 __builder.AddAttribute(260, "ValueChanged", new System.Action<System.Object>(__value => CurrentSelectedRow = __value));

OK g.cs file rsdzen 3.0.10 __builder.AddAttribute(260, "ValueChanged", new System.Action<WarrantModels.Warrant>(__value => CurrentSelectedRow = __value));

It seems to be centered around the datagrid option:

@bind-Value="CurrentSelectedRow"

I am unsure of where to cast in these circumstances

Any pointers would be appreciated, (p.s.I'm not using the Radzen IDE but embedding the components in razor pages.)

Kind Regards

Sean Francis

2

Hi @Sean,

Yes, we changed Value property type of the DataGrid from TItem to object because of the multiple selection feature similar to our other components like DropDown, DropDownDataGrid, etc. Now Value can be a single object or IEnumerable<object>. You can either change your variable CurrentSelectedRow to dynamic or use the approach from our demo (Value="@order" RowSelect="@(args => order = args)").

Update: I've just pushed update to the demo to use bind-Value instead RowSelect.

3

Thank you Enchev for your prompt reply and assistance. I will look into resolving our issues with this information.

Kind Regards

Sean Francis

4

Hi @Sean
Did you fix this issue ?
When i upgrade and change the code according the demo sample I still have CS0266 Cannot implicitly convert type 'object' to ''. An explicit conversion exists (are you missing a cast?)

5

Hi Mehdi

We were finding this issue when using the @bind-Value option on the Radzen Grid. I resolved the build error by using the Value option instead of @bind-Value,

In the RowSelect event you can cast the RowSelect argument to whatever variable that was originally pointed to by the @bind-value statement, thereby achieving the same result.

Hope this helps

6

Hi Sean
Thanks for the reply
What you say is actually working
Unfortunately i need the bind value as i'm using a master detail grid

7

Hi @mehdi
I know this is an old thread, but did you ever fix your problem? I am having the exact same issue, and I am trying to build a master detail grid.
Thanks in advance
Peter