What is the key difference between NSDictionary and NSMutableDictionary?

What is the key difference between NSDictionary and NSMutableDictionary?

Main Difference is: NSMutableDictionary is derived from NSDictionary, it has all the methods of NSDictionary. NSMutableDictionary is mutable( can be modified) but NSDictionary is immutable (can not be modified).

Is NSDictionary ordered?

NSDictionary keys & values are not ordered.

How do you create an NSDictionary?

To create a Dictionary, use {} curly brackets to construct the dictionary and [] square brackets to index it. Separate the key and value with colons : and with commas , between each pair. As with lists we can print out the dictionary by printing the reference to it.

Which is NSData object contains the root object?

Returns a data object that contains the encoded form of the object graph formed by the given root object. The root of the object graph to archive. An NSData object containing the encoded form of the object graph whose root object is rootObject.

How to handle errors and exceptions that occur with databinding?

You can intercept these errors and exceptions and then either recover or pass the error information to the user by handling the BindingComplete event for a particular Binding, BindingSource, or CurrencyManager component. This code example demonstrates how to handle errors and exceptions that occur during a data-binding operation.

What are some examples of Data Bind in Visual Studio?

For example, you will typically perform the following standard operations regardless of the specific implementation of your objects, or application’s logic: Loading data into objects (typically from a database). Creating a typed collection of objects. Adding objects to and removing objects from a collection.

When to enable or disable formatting for a binding?

In order to intercept errors and exceptions by handling this event, you must enable formatting for the binding. You can enable formatting when the binding is constructed or added to the binding collection, or by setting the FormattingEnabled property to true.

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