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All queries made to a connected database are done using the SqlCommand, OleDbCommand, OdbcCommand, or OracleCommand class. As noted previously, the SqlCommand class provides three methods to send SQL commands to the database, with each depending on the type of command. To query the database, you need to use the ExecuteReader() method. Before you run the ExecuteReader() method, you need to configure SqlCommand by placing the SQL command into it. There are two common ways of doing this. You can either place the SQL command, in text form, into the CommandText property or place the name of the stored procedure containing the SQL command into the same property. The default method is the command in text form. If you plan to use a stored procedure, you need to change the CommandType property to CommandType::StoredProcedure. Listing 12-6 shows both methods. The first command uses a text-formatted command and retrieves the contents of the Authors database for authors with a specified LastName, in this case hard-coded to Doors . The second command, using a stored procedure, retrieves all Stories view records where LastName equals the value passed to the stored procedure, in this case also Doors . Both calls to the ExecuteReader() method after being configured return an instance of SqlDataReader, which is then iterated through to display the retrieved content. Listing 12-6. The Doors Stories using namespace System; using namespace System::Data; using namespace System::Data::SqlClient; void main() { String ^Name = "Doors"; SqlConnection ^connection = gcnew SqlConnection(); #ifdef SQLAuth // SQL Server authentication connection->ConnectionString = "User ID=sa; Password=;" "Data Source=(local); Initial Catalog=DCV_DB;"; #else // Windows Integrated Security connection->ConnectionString = "Persist Security Info=False; Integrated Security=SSPI;" "Data Source=(local); Initial Catalog=DCV_DB;"; #endif vb.net pdf 417 reader VB . NET Image: How to Decode and Scan 2D PDF - 417 Barcode on Image ...
Use RasterEdge . NET Imaging Barcode Reader application to read and decode PDF - 417 from image and document in VB project. vb.net pdf 417 reader NET PDF - 417 Barcode Reader - KeepAutomation.com
NET PDF - 417 Barcode Reader , Reading PDF - 417 barcode images in .NET, C# , VB . NET , ASP.NET applications. ServiceHost gives you access to the WCF hosting infrastructure on the server side whereas ChannelFactory gives you access to the WCF hosting infrastructure on the client side. The following sections cover the basics of ServiceHost and ChannelFactory from a programming model perspective. In 4, you will learn about hosting web services in IIS. 5 covers the complete WCF hosting infrastructure and shows you the different options WCF offers in terms of hosting services in different types of applications and using services in different types of clients. In this chapter, we cover only self-hosting and console applications. birt ean 128, birt upc-a, word ean 13, kindergarten sight word qr codes, birt ean 13, birt qr code vb.net pdf 417 reader Packages matching PDF417 - NuGet Gallery
NET is a versatile PDF library that enables software developers to generate, edit, read and ... The PDF417 barcode encoder class library is written in C# . vb.net pdf 417 reader PDF417 Barcode Decoder . NET Class Library and Two Demo Apps ...
2 May 2019 ... The PDF417 barcode decoder class library allows you to extract PDF417 barcode information from image files. The library is written in C# for ... break; default: outputColor = ColorsMagenta; break; } } return outputColor; } public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) { throw new NotImplementedException(); } } The conversion process is split into two parts: retrieving the data into the format we require, then the algorithm that will convert a month index (1-12, January to December) and balance to a SystemWindowsMediaColor value Notice that we do not presume to know which binding will be first, instead iterating over the list of source values and attempting to convert each one in turn What if our requirements change at some point in the future and negative balances in Quarter 1 are only considered problematic (and therefore should be colored yellow) if the balance is below 1,000 Currently, we would have to change this binding converter, which is quite closely wedded to the view. vb.net pdf 417 reader Read PDF417 Barcode data - CodeProject
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This page tells how to use VB . NET PDF 417 Barcode Scanner Library to read PDF - 417 in .NET, VB . NET , C# , ASP.NET projects. try { SqlCommand ^cmd = gcnew SqlCommand(); cmd->Connection = connection; cmd->CommandType = CommandType::Text; cmd->CommandText = String::Format("SELECT FirstName, LastName FROM Authors " "WHERE LastName = '{0}'", Name); connection->Open(); SqlDataReader ^reader = cmd->ExecuteReader(); while(reader->Read()) { Console::WriteLine("{0} {1}", reader["FirstName"], reader["LastName"]); } reader->Close(); // CREATE PROCEDURE dbo.StoriesWhereLastName // ( // @LastName NVARCHAR(32) = NULL // ) // AS // /* SET NOCOUNT ON */ // // // // SELECT StoryID, Headline, Story FROM Stories WHERE LastName = @LastName RETURN cmd->CommandType = CommandType::StoredProcedure; cmd->CommandText = "StoriesWhereLastName"; cmd->Parameters->Add( gcnew SqlParameter("@LastName",SqlDbType::VarChar)); cmd->Parameters["@LastName"]->Value = Name; reader = cmd->ExecuteReader(); Console::WriteLine("------------------------------------------------"); while(reader->Read()) { Console::WriteLine(reader["StoryID"]); Console::WriteLine(reader["Headline"]); Console::WriteLine(reader["Story"]); Console::WriteLine(); } reader->Close(); } ServiceHost is instantiated based on a particular service type you implemented and as such hosts your service. When a ServiceHost instance is available, you can do anything you like programmatically in regards to the ABCs and behavior (which we will cover later). So, Listing 3-6 and Listing 3-7 define and instantiate your first service in a specific service host that is initialized imperatively with an address, a binding, and a contract. We are using the basic examples given earlier, so we use a simple HTTP address and the BasicHttpBinding and ITradeService contracts you saw earlier. vb.net pdf 417 reader .NET PDF - 417 Barcode Reader for C# , VB . NET , ASP.NET ...
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