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POHow to use an DLL load from Embed Resource?
 

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  1. POHow to use an DLL load from Embed Resource?
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    <p>I have a DLL >> <em>System.Data.SQLite.dll</em></p> <p>To use it in a normal way > just add it as reference and</p> <pre><code>using System.Data.SQLite; </code></pre> <p>then, I can use all the functions inside this DLL.</p> <p><strong>But</strong>, I want to merge my <strong><em>app.exe</em></strong> and this DLL into one single file. I have tried using <strong>ILmerge</strong>, but fail. As I know, <strong>ILmerge</strong> cannot merge unmanage DLL.</p> <p>So, I tried another method > make the DLL as embbed resource. I am able to load it as an assembly with the below code:</p> <pre><code>Stream stm = Assembly.GetExecutingAssembly().GetManifestResourceStream("MyApp.System.Data.SQLite.dll"); byte[] ba = null; byte[] buffer = new byte[16 * 1024]; using (MemoryStream ms = new MemoryStream()) { int read; while ((read = stm.Read(buffer, 0, buffer.Length)) &gt; 0) { ms.Write(buffer, 0, read); } ba = ms.ToArray(); } Assembly sSQLiteDLL = Assembly.Load(ba); </code></pre> <p>but, how am I going to use the functions in SQLiteDLL?</p> <p>I also tried add the DLL as resource in properties and load it like this:</p> <pre><code>public Form1() { AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve); InitializeComponent(); } System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args) { AppDomain domain = (AppDomain)sender; if (args.Name.Contains("System_Data_SQLite")) { return domain.Load(MyApp.Properties.Resources.System_Data_SQLite); } return null; } </code></pre> <p>The above explained what I've got so far and I don't know what to do next to use the DLL? I still can't use the functions inside the DLL.</p> <p>For example, when I type this:</p> <pre><code>SQLiteCommand cmd = new SQLiteCommand(); </code></pre> <p>The Visual Studio says:</p> <p><em>Error 21 The type or namespace name 'SQLiteCommand' could not be found (are you missing a using directive or an assembly reference?)</em></p> <p>Can you share your insight? Thanks.</p>
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    1. COYou should be able to combine the methods you have above to achieve this. It does require that the SQLite assembly is added as a reference though, otherwise VS can't know what to do with it. I'm not sure how this solves your native DLL problem though. You'll still need it as a physical file at runtime.
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    2. COYou asked a very similar question and got lots of answers including some links etc. - did you checkout these answers/links ?
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    3. CO@Yahia : studying... will take some time. I have tried SmartAssembly and yes it success. Fail to use **ILmerge**. Maybe missout some parameters. For **ILmerge**, the parameters I used is: 'ilmerge /out:MyApp2.exe MyApp.exe System.Data.SQLite.dll' An error occur, its says that The assembly **System.Data.SQLite.dll** is not marked as containing only managed code. Now I will try to manually merge the DLL within the code. I will let you know if success. and hey, thanks for your help. Truely appreciated.
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