« Blazor ASP.NET Core 7.0 » : différence entre les versions
De Banane Atomic
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(Page créée avec « Category:Blazor = [https://learn.microsoft.com/en-us/ef/core/dbcontext-configuration/#using-a-dbcontext-factory-eg-for-blazor Entity Framework Core] = To handle multi-threads scenarios, use a {{boxx|AddDbContextFactory}} to create a DbContext for each query. <filebox fn='Program.cs'> builder.Services.AddDbContextFactory<MyDbContext>(); </filebox> <filebox fn='MyRepository.cs'> private readonly IDbContextFactory<MyDbContext> contextFactory; public DataSumma... ») |
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[[Category:Blazor]] | [[Category:Blazor]] | ||
= [https://learn.microsoft.com/en-us/ | = [https://learn.microsoft.com/en-us/aspnet/core/blazor/blazor-server-ef-core?view=aspnetcore-7.0 Entity Framework Core] = | ||
To handle multi-threads scenarios, use a {{boxx|AddDbContextFactory}} to create a DbContext for each query. | To handle multi-threads scenarios, use a {{boxx|AddDbContextFactory}} to create a DbContext for each query. | ||
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} | } | ||
</filebox> | </filebox> | ||
* [https://learn.microsoft.com/en-us/ef/core/dbcontext-configuration/#using-a-dbcontext-factory-eg-for-blazor Using a DbContext factory] | |||
Version du 28 mars 2023 à 09:35
Entity Framework Core
To handle multi-threads scenarios, use a AddDbContextFactory to create a DbContext for each query.
| Program.cs |
builder.Services.AddDbContextFactory<MyDbContext>(); |
| MyRepository.cs |
private readonly IDbContextFactory<MyDbContext> contextFactory;
public DataSummaryRepository(IDbContextFactory<MyDbContext> contextFactory)
{
this.contextFactory = contextFactory;
}
public async Task<Data> FetchDataAsync()
{
// create a DbContext for this query, then dispose it once the query has been executed
using var context = contextFactory.CreateDbContext();
}
|
