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Double-click a desired date and time and a small window appears (see Figure 3-9) with the date and time (one hour by default) and a place for you to enter the name of the event. In The Perfect Landscape Example, on April 22 (Earth Day), a demonstration at Home Depot is scheduled from 11 a.m. 4 p.m., however it only shows 11 a.m. 12 p.m. Click Edit Event Details if you need to modify the event details from the defaulted time slot settings, or Create Event if the time is what you would like.

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Net . A library which supports decoding and generating of barcodes (like QR Code , ... The project is a port of the java based barcode reader and generator library  ...

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Stores whole numbers from 2,147,483,648 to 2,147,483,647. You ll use them for ID columns and in other circumstances that require integer numbers. Related types are SmallInt and TinyInt. A Bit data type is able to store values of 0 and 1. Stores monetary data with values from 263 to 263 1 with a precision of four decimal places. You ll use this data type to store product prices, shopping cart subtotals, and so on. SQL Server also supports the Float data type, which holds floating-point data, but Float is not recommended for storing monetary information because of its lack of precision. A variation of Money is SmallMoney, which has a smaller range, but the same precision. Supports date and time data from January 1, 1753 through December 31, 9999 with an accuracy of three hundredths of a second. A SmallDateTime type has a range from January 1, 1900 to June 6, 2079 with an accuracy of one minute. You ll use this data type to store information such as order shipping dates.

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As mentioned earlier, any marshal-by-reference class must inherit from the MarshalByRefObject class. Hence the Employee class inherits from the MarshalByRefObject base class. The Employee class contains a single method named GetEmployee(), which accepts the employee ID of an employee, populates its details in an object of the EmployeeDetails class, and returns it back to the caller. To accomplish this, the code creates a SqlConnection and passes a connection string to its constructor. It then creates an instance of the SqlCommand class by passing a SELECT query and the SqlConnection instance that we just created.

Table 4-1. SQL Server Data Types (Continued) qr code reader free

ZXing . Net - CodePlex Archive
This project migrated to ZXing . Net . A library which supports decoding and generating of barcodes (like QR Code , PDF 417, EAN, UPC ...

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QrCode . Net - CodePlex Archive
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The SELECT query fetches five columns from the Employees table of the Northwind database: EmployeeID, FirstName, LastName, HomePhone, and Notes. Then the database connection is opened for query execution by using the Open() method of the SqlConnection class. The ExecuteReader() method of the SqlCommand class executes the SELECT query and returns its results as a SqlDataReader. Then the code iterates through the SqlDataReader and sets various properties of the EmployeeDetails object. After the properties are set, the SqlDataReader and SqlConnection are closed. Finally, the EmployeeDetails instance is returned to the caller. The class also has a public constructor, which simply emits a message on the console. The purpose of putting a message here will be clear when we develop and run the client application later in this chapter.

Stores a numerical Globally Unique Identifier (GUID) A GUID is guaranteed to be unique; this property makes it very useful in certain situations In this book, we prefer to generate unique identifiers using other methods, but it s good to know there are options Stores variable-length character data NVarChar stores Unicode data with a maximum length of 4,000 characters, and VarChar stores non-Unicode data with a maximum length of 8,000 characters This data type is best used for storing short strings (note their length limitations) without fixed lengths Stores fixed-length character data Values shorter than the declared size are padded with spaces NChar is the Unicode version and goes to a maximum of 4,000 characters, whereas Char can store 8,000 characters When the size of the strings to be stored is fixed, it s more efficient to use Char than VarChar Stores large character data.

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QR Code Encoder and Decoder . NET (Framework, Standard, Core ...
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