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Visual C# ... QrCode; using ZXing.QrCode.Internal; using ZXing.Common; public ActionResult Contact() { ViewBag. ... SaveAs(path); QRCode code = new QRCode(); QRCodeReader reader = new QRCodeReader(); Bitmap ...

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Apr 2, 2016 · First thing is to import the ZXing.NET nuget package into your project. Next, let's get a barcode – I've uploaded a PNG of the QR barcode that I want to decode. There's more about the different barcode formats here. The code above isn't an example of best practice – it's simply just to show how to read a barcode.


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The SqlTypes property tells NHibernate what SQL column types to use for DDL schema generation B. The types are subclasses of NHibernate.SqlTypes.SqlType. Notice that this property returns an array of types. An implementation of IUserType may map a single property to multiple columns, but the legacy data model has only a single Double. ReturnedType tells NHibernate what .NET type is mapped by this IUserType C. The IUserType is responsible for dirty-checking property values D. The Equals() method compares the current property value to a previous snapshot and determines whether the property is dirty and must be saved to the database. The IUserType is also partially responsible for creating the snapshot in the first place E. Because MonetaryAmount is an immutable class, the DeepCopy() method returns its argument. In the case of a mutable type, it would need to return a copy of the argument to be used as the snapshot value. This method is also called when an instance of the type is written to or read from the second-level cache. NHibernate can make some minor performance optimizations for immutable types. The IsMutable property F tells NHibernate that this type is immutable. The NullSafeGet() method G retrieves the property value from the ADO.NET IDataReader. You can also access the owner of the component if you need it for the conversion. All database values are in USD, so you have to convert the MonetaryAmount returned by this method before you show it to the user.

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QR code webcam scanner c# - Stack Overflow
Try using AForge.NET library for capturing the video from your webcam , and then ZXing.Net library for reading the QR codes . You can follow ...

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Best 20 NuGet qrcode Packages - NuGet Must Haves Package
QRCoder is a simple library, written in C#.NET, which enables ... ZXing. Ding.​QRCode.ZXing是基于.net core平台开发的应用框架中的ZXing.Net二维码操作类库。

The NullSafeSet() method writes the property value to the ADO.NET IDbCommand H. This method takes whatever currency is set and converts it to a simple Double USD value before saving. Note that, for briefness, we haven t provided a Convert function I. If you were to implement it, it would have code that converts between various currencies. You can map the InitialPrice property of Item as follows:

rendering The process of converting a report definition and the report data into a specified output format.

<property name="InitialPrice" column="INITIAL_PRICE" type="NHibernate.Auction.CustomTypes.MonetaryAmountUserType, NHibernate.Auction"/>

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Try using AForge.NET library for capturing the video from your webcam, and then ZXing.Net library for reading the QR codes. You can follow ...

This is the simplest kind of transformation that an implementation of IUserType can perform. It takes a value-type class and maps it to a single database column. Much more sophisticated things are possible; a custom mapping type can perform validation, it can read and write data to and from an Active Directory, or it can even retrieve persistent objects from a different NHibernate ISession for a different database. You re limited mainly by your imagination and performance concerns. In a perfect world, you d represent both the amount and currency of the monetary amounts in the database, so you re not limited to storing USD. You can use an IUserType for this, but it s limited; if an IUserType is mapped with more than one property, you can t use those properties in your HQL or Criteria queries. The NHibernate query engine won t know anything about the individual properties of MonetaryAmount. You can access the properties in your C# code (MonetaryAmount is a regular class of the domain model, after all), but not in NHibernate queries. To allow for a custom value type with multiple properties that can be accessed in queries, you can use the ICompositeUserType interface. This interface exposes the properties of the MonetaryAmount to NHibernate.

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C# Imaging - Read 2D QR Code in C# .NET - RasterEdge.com
Using this .NET barcode reader control, you can easily detect and decode all QR Code barcodes from loaded image file using C# code . Supported image file formats are png, jpeg, bmp, tiff and gif. The sample C# code below can help you detect all QR Code barcodes from png and return the decoding values to data string.

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What open source C# library can read/write micro QR codes? - Stack ...
There is an open source project called QRCode. QRCode library is a .NET component that can be used to encode and decode QRCode.

To demonstrate the flexibility of custom mapping types, you won t have to change the MonetaryAmount domain model class at all you ll change only the custom mapping type, as shown in listing 6.2.

A description of a report s data, layout, and properties. An open XML schema used to create a report definition.

using System; using System.Data; using NHibernate.UserTypes; public class MonetaryAmountCompositeUserType : ICompositeUserType { public Type ReturnedClass { get { return typeof(MonetaryAmount); } } public new bool Equals( object x, object y ) { if ( object.ReferenceEquals(x,y) ) return true; if (x == null || y == null) return false; return x.Equals(y); } public object DeepCopy(object value) { return value; } public bool IsMutable { get { return false; } } public object NullSafeGet(IDataReader dr, string[] names,

NHibernate.Engine.ISessionImplementor session, object owner) { object obj0 = NHibernateUtil.Double.NullSafeGet(dr, names[0]); object obj1 = NHibernateUtil.String.NullSafeGet(dr, names[1]); if ( obj0==null || obj1==null ) return null; double value = (double) obj0; string currency = (string) obj1; return new MonetaryAmount(value, currency);

} public void NullSafeSet(IDbCommand cmd, object obj, int index, NHibernate.Engine.ISessionImplementor session) { if (obj == null) { ((IDataParameter)cmd.Parameters[index]).Value = DBNull.Value; ((IDataParameter)cmd.Parameters[index+1]).Value = DBNull.Value; } else { MonetaryAmount amount = (MonetaryAmount)obj; ((IDataParameter)cmd.Parameters[index]).Value = amount.Value; ((IDataParameter)cmd.Parameters[index+1]).Value = amount.Currency; } } public string[] PropertyNames { get { return new string[] { "Value", "Currency" }; } } public NHibernate.Type.IType[] PropertyTypes { get { return new NHibernate.Type.IType[] { NHibernateUtil.Double, NHibernateUtil.String }; } } public object GetPropertyValue(object component, int property) { MonetaryAmount amount = (MonetaryAmount) component; if (property == 0) return amount.Value; else return amount.Currency; } public void SetPropertyValue(object comp, int property, object value) { throw new Exception("Immutable!"); } public object Assemble(object cached, NHibernate.Engine.ISessionImplementor session, object owner) { return cached; } public object Disassemble(object value, NHibernate.Engine.ISessionImplementor session) { return value; }

A report that preserves a record of data at a point in time. A report snapshot is stored in the ReportServer database in its intermediate format and rendered only when a user requests the report.

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Topic: zxing · GitHub
C# Updated on Aug 22, 2018 ... Simple barcode scanner on Android using ZXing library. qr-code barcode ... Create a QR Code With a Custom Logo Inside in c#.

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Mar 31, 2019 · This post shows you how to read qr code from webcam using AForge , ZXing.Net in C#.NET Windows Forms Application.

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