Collection Data Binding In Blazor Server

[hintsofttech]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

dear sir/mam,

normal object binding is working properly even when it's null.

but binding through collection not working.

this feature should also work as normal
because data can be from any resources and in any form (in this case array) as per requirement

Regards-
Sanjeeb

Describe the solution you'd like

Customer Entry Form

@page "/customerForm"
@Inject Customer[] customers
@Inject IJSRuntime js

//have registered service in Program.cs as follows
//builder.Services.AddScoped<Customer[]>();

<input id="focusedInput" @Bind="@customers[0].LastFocusedId" hidden/>

<input id="txtId" @Bind="@customers[0].Id" @onfocus='()=>LastFocused("txtId")'/>
<input id="txtName" @Bind="@customers[0].Name" @onfocus='()=>LastFocused("txtName")'/>
<input id="txtAddress" @Bind="@customers[0].Address" @onfocus='()=>LastFocused("txtAddress")'/>

<input id="txtId1" @Bind="@customers[1].Id" @onfocus='()=>LastFocused("txtId1")'/>
<input id="txtName1" @Bind="@customers[1].Name" @onfocus='()=>LastFocused("txtName1")'/>
<input id="txtAddress1" @Bind="@customers[1].Address" @onfocus='()=>LastFocused("txtAddress1")'/>

<input id="txtId2" @Bind="@customers[2].Id" @onfocus='()=>LastFocused("txtId2")'/>
<input id="txtName2" @Bind="@customers[2].Name" @onfocus='()=>LastFocused("txtName2")'/>
<input id="txtAddress2" @Bind="@customers[2].Address" @onfocus='()=>LastFocused("txtAddress2")'/>

Additional context

No response

[javiercn]

@hintsofttech thanks for contacting us.

Could you please be more concrete on exactly what you think is not working and provide a minimal repro project as a public github repo so that we can get a sense of what might be going on?

Hi @hintsofttech. We have added the "Needs: Author Feedback" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[hintsofttech]

@javiercn sir, I mean the part @Bind="@customers[0].Id"
is not showing any input for null values as it's bound by collection.

but if I try to bind it by simple object like @Bind="@customer.Id
it works and even show the blank input box for null values as well.

provide a minimal repro project as a public github repo so that we can get a sense of what might be going on?

dear sir, nothing special in this aspect,
you can copy the above code and try to run with a below class:

public class Customer
{
public string in Id {get;set;}
public string Name {get;set;}
public string Address {get;set;}
}

and
//have registered service in Program.cs as follows
//builder.Services.AddScoped<Customer[]>();

please help us why it's not allowed to bind input from collection type datasource ?

if still not clear, please let me know. i will project it to github for convenience.

Regards-
Sanjeeb

[javiercn]

@hintsofttech thanks for the additional details.

We prefer if you provide a minimal repro project. As trivial as they might be, there are many small details that can be missing in these descriptions and that might make a difference.

Hi @hintsofttech. We have added the "Needs: Author Feedback" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[hintsofttech]

@javiercn sir,
please find the sample project on below link:-
Blazor-Collection-Binding