Set default values for fields or controls – Access
Set default values for fields or controls. In the Default Value property box, type the following: [control_name].ItemData(n) In this case, control_name is the name of the list box or combo box control, and n is the number of the list item that you want to make the default.
What is Default Values – Database? – Definition from
Techopedia explains Default Values – Database When creating a database table in systems such as Oracle or SQL Server, an option to specify a default value is available. This separates database design issues from the front-end application.
Default value expressions (C# Programming Guide
Default value expressions are particularly useful in generic classes and methods. One issue that arises using generics is how to assign a default value of a parameterized type T when you don’t know the following in advance:. Whether T is a reference type or a value type.; If T is a value type, whether it’s a numeric value or a struct.; Given a variable t of a parameterized type T, the
Default values table (C# Reference) | Microsoft Docs
Remarks. You cannot use uninitialized variables in C#. You can initialize a variable with the default value of its type. You also can use the default value of a type to specify the default value of a method’s optional argument.. Use the default value expression to produce the default value of a type, as the following example shows:. int a = default(int);
Default Values | Understanding C# Types | InformIT
The default value for the char type is the character equivalent of zero and false for the bool type. The object and string types have a default value of null , representing a null reference that literally is one that does not refer to any object.
Default (computer science) – Wikipedia
A default, in computer science, refers to the preexisting value of a user-configurable setting that is assigned to a software application, computer program or device. Such settings are also called presets or factory presets , especially for electronic devices.
PostgreSQL: Documentation: 10: 5.2. Default Values
If no default value is declared explicitly, the default value is the null value. This usually makes sense because a null value can be considered to represent unknown data. In a table definition, default values are listed after the column data type.
HTML DOM Input Text defaultValue Property – W3Schools
The defaultValue property sets or returns the default value of a text field. Note: The default value is the value specified in the HTML value attribute. The difference between the defaultValue and value property, is that defaultValue contains the default value, while value contains the current value
SQL DEFAULT Constraint – W3Schools
SQL DEFAULT Constraint. The DEFAULT constraint is used to provide a default value for a column. The default value will be added to all new records IF no other value is specified.
However, it’s often useful to set a different default value. This is where default parameters can help. In the past, the general strategy for setting defaults was to test parameter values in the function body and assign a value if they are undefined .