In your deserialization code you’re creating a MemoryStream and XmlTextWriter but you’re not giving it the string to deserialize. using (MemoryStream memStream = new MemoryStream()) { using (XmlTextWriter textWriter = new XmlTextWriter(memStream, Encoding.Unicode)) { // Omitted } } You can pass the bytes to the memory stream and do away with the XmlTextWriter altogether. using … Read more
I solve my problem Just add that code in any cs file. using System; using System.IO; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Runtime.InteropServices.ComTypes; using System.Text; using System.Reflection; using System.Windows.Forms; namespace iwantedue.Windows.Forms { public class OutlookDataObject: System.Windows.Forms.IDataObject { #region NativeMethods private class NativeMethods { [DllImport(“kernel32.dll”)] static extern IntPtr GlobalLock(IntPtr hMem); [DllImport(“ole32.dll”, PreserveSig = false)] public static extern … Read more
You use a MethodBuilder to define methods. To define the method body, you call GetILGenerator() to get an ILGenerator, and then call the Emit methods to emit individual IL instructions. There is an example on the MSDN documentation for MethodBuilder, and you can find other examples of how to use reflection emit on the Using … Read more
There is no uniform way to query dynamic properties, generally it’s expected that you know them ahead of time. With DynamicObject, implementers may override GetMemberNames and that generally gives you the properties, however it is really meant for debugging because there is no requirement that it provide all properties. Otherwise if it’s your own DynamicObject … Read more
Indeed, limiting C# Script Tasks to language features of C# 4.0 brings the Debugger back to life. In my case, adding a single null-coalescing operator caused the debugger issue using Visual Studio 2015 (VSTA) on SQL Server/SSIS 2016. To restrict the Script to C# 4.0 we can enforce a specific Language Level in the Build … Read more
EF seems to use INNER JOIN for including a required and LEFT OUTER JOIN for including an optional navigation property. Example: public class Order { public int Id { get; set; } public string Details { get; set; } public Customer Customer { get; set; } } public class Customer { public int Id { … Read more
This might help to get started: protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { var linkField = new TemplateField(); linkField.ItemTemplate = new LinkColumn(); GridView1.Columns.Add(linkField); } } class LinkColumn : ITemplate { public void InstantiateIn(System.Web.UI.Control container) { LinkButton link = new LinkButton(); link.ID = “linkmodel”; container.Controls.Add(link); } } But: Although you can dynamically add … Read more
Sorry for the late response – but saw this whilst searching for something else. Simply do the following: SqlGeography theGeography; int srid = 4326; // or alternative DbGeography newGeography = DbGeography.FromText(theGeography.ToString(), srid); To reverse it: DbGeography theGeography; SqlGeography newGeography = SqlGeography.Parse(theGeography.AsText()).MakeValid(); Hope that helps!
You absolutely want to use FromAsync when an API offers a BeginXXX/EndXXX version of a method. The difference is that, in the case of something like Stream or Socket or WebRequest, you’ll actually end up using async I/O underneath the covers (e.g. I/O Completion Ports on Windows) which is far more efficient than blocking multiple … Read more
The basic syntax for a “left join” in Linq is like this: from x in table1 join y in table2 on x.id equals y.id into jointable from z in jointable.DefaultIfEmpty() select new { x.Field1, x.Field2, x.Field3, Field4 = z == null ? 0 : z.Field4 }; In your case, I’m a little confused because the … Read more