Add Method

DbConnectionStringBuilder::Add Method (String^, Object^)

 

Adds an entry with the specified key and value into the DbConnectionStringBuilder.

Namespace:   System.Data.Common
Assembly:  System.Data (in System.Data.dll)

public:
void Add(
	String^ keyword,
	Object^ value
)

Parameters

keyword
Type: System::String^

The key to add to the DbConnectionStringBuilder.

value
Type: System::Object^

The value for the specified key.

Exception Condition
ArgumentNullException

keyword is a null reference (Nothing in Visual Basic).

NotSupportedException

The DbConnectionStringBuilder is read-only.

-or-

The DbConnectionStringBuilder has a fixed size.

The Item property can also be used to add new elements by setting the value of a key that does not exist in the dictionary. For example: myCollection["myNonexistentKey"] = myValue.

Calling the Add method by passing a null (Nothing in Visual Basic) key throws an ArgumentNullException. However, calling the Add method by passing a null value removes the key/value pair.

The following example creates a new DbConnectionStringBuilder and adds items. The code also demonstrates overwriting an existing item using the Add method, and includes a commented block that would throw an ArgumentNullException.

System_CAPS_noteNote

This example includes a password to demonstrate how DbConnectionStringBuilder works with connection strings. In your applications, we recommend that you use Windows Authentication. If you must use a password, do not include a hard-coded password in your application.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 10
.NET Framework
Available since 2.0
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