sql-server-ce

I've tried literally 50+ different attempts at my connection string for my local database and nothing seems to work. I'm essentially just trying to open a connection the database file so I can dump in the data I've pulled out of my excel spreadsheet. I'm using Visual C# making an offline winform application. No matter what connection string I try in my app.config, it always fails when it tries to write "dReader" to the database. The error is usually this depending on what string I try: "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The

I'm making my own prq file to perform the SQL CE 4.0 installation with my WPF application installation. The installer keeps failing, and I'm not sure why. It looks like it attempts to run the CE exe, but then a Windows Installer help window comes up with all of these command line help options. I click OK, and then it says the installation of CE has failed. I don't how to determine what is going wrong. Here's my prq file contents: <?xml version="1.0" encoding="UTF-8"?> <SetupPrereq> <conditions> <condition Type="32" Comparison="2" Path="HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server

I was creating a table in SQL Server CE and realized it doesn't support varchar. Looking this up, I found that "non-Unicode text columns (varchar, char, text) and smallmoney are not supported; although nvarchar, nchar, ntext, and money are supported" as stated at MSDN . Is this true? Why is this, exactly? It would seem that a compact database would support data types that take less bytes to store...I'm assuming it takes more space to save the Unicode characters. What is the reasoning behind this? It's probably because Windows CE is completely Unicode based and all of it's strings are stored

I'm trying to take a snapshot from a Map control as a WritableBitmap, convert it to a byte array and save it in the local DB. It works fine (I can convert the byte array back to the image) untill I submit the changes to the DB. At this point it throws an exception "Byte array truncation to a length of 8000". I didn't find any documentation about byte array limitation. Does anyone know how to increase the limit of 8000? My byte array is a member of my Model: private byte[] _locationImage; [Column] public byte[] LocationImage { get { return _locationImage; } set { if (_locationImage != value) {

I'm trying to store/save an image in an SQL Compact Edition (CE) database. I declare the field in my Student model as: [Column(TypeName = "image")] public byte[] Photo { get; set; } The database is created with the image data type for the Photo column as can be seen here: The problem is: When I run the app and try to save a Student with a Photo of 3 MB (for example), I get an exception: validationError.ErrorMessage = "The field Photo must be a string or array type with a maximum length of '4000'." SQL Server CE supports these Data Types . In this comparison between SQL Express and SQL Compact

I have c# project that is using sqlserver compact edition and entity framework for data access. I have the need to insert or update a large amount of rows, 5000+ or more to the db, so if the key exists update the record if not insert it. I can not find a way to do this with compact edition and EF with out horrible performance, ie taking 2 mins plus on a core i7 computer. I have tried searching for the record to see if it exists then inserting if not or update if it does, the search is the killer on that. I have tried compiling the search query and that only gave a small improvement. Another

I have built a Windows Phone Application using SQL Server CE database. We need transplant this app to Windows 8 Metro Style. Do Windows 8 Metro-style applications support SQL Server CE local databases? As already answered by ErikEJ, there is no native support for a local SQL Server CE database, but maybe this third party component SQLite is usefull for you? Tim Heuer has wrote a blogpost about how to use SQLite in a metro style app: http://timheuer.com/blog/archive/2012/05/20/using-sqlite-in-metro-style-app.aspx In the blogpost there is also a video with the "How to" steps to use SQLite in

I'm done trying to Google for this. I have installed SQL Server CE 4.0, and have EF 4.1, but I can't get a proper connection string. Nothing on connectionstrings.com applies to me. I just want to create a SqlCeEngine object, but no matter what I try I get some exception. Most recently it's been Unknown connection option in connection string with either "metadata", "app", "provider", or "provider connection string" after it. I know EF requires metadata in the connection string. And I can't imagine how anything could do without "provider connection string". So far I have this: <add name=