Xamarin offline installer how to#

Public async Task UpdateItemAsync(T item) Public async Task ReadItemAsync(string id) Public async Task DeleteItemAsync(T item) Public async Task UpsertItemAsync(T item) Public async Task CreateItemAsync(T item) Public AzureCloudTable(MobileServiceClient client) Public class AzureCloudTable : ICloudTable where T : TableData Let's look at a standard table wrapper: using One has to do a conversion from one to the other. However, the standard list management in Xamarin and UWP applications use an ObservableCollection instead. For instance, the ReadAsync() method returns an IEnumerable type. Rather it is because the return values from many of the methods are not compatible with the general patterns used when working with a UI.

This isn't because I like wrapping classes. When developing my interface, I tend to wrap my table interface into another class. UndeleteAsync() un-deletes a deleted record (if soft-delete is turned on).DeleteAsync() deletes a record in the table.UpdateAsync() updates an existing record in the table.InsertAsync() inserts a new record into the table.LookupAsync() reads a single record in the table, identified by its id.ReadAsync() performs reads against the table.You should never use an untyped table unless there is no other way of achieving whatever operation you need.ДЄll tables implement the IMobileServiceTable interface: This allows one to access data when the model is unknown or hard to represent in a model. Whereas a typed table is based on a concrete model, an untyped table is based on a JSON object. This version of the method returns an untyped table. You can produce an un-typed table: var table = client.GetTable('todoitem') One must have a consistent naming scheme - the model on the server, table controller on the server, model on the client and table on the client must all be based on the same root name. This method relies on the fact that the table name is the same as the model. There is a method for obtaining a reference to an online table: var table = client.GetTable() We've already seen an example of an online client in our online TaskList project.

Xamarin offline installer how to#

We will cover how to get and process data, how to deal with performance and reliability and some of the quirks that one must deal with when dealing with offline data. Although we have already brushed on handling data within the client, this section will go deeper into the data handling aspects on the client. Pretty much any non-trivial mobile client will require access to data. Chapter 6 - Combining Web and Mobile Apps