I was experiencing a similar error message that I noticed in the Windows Event Viewer that read: Login failed for user ‘NT AUTHORITY\NETWORK SERVICE’. Reason: Failed to open the explicitly specified database. [CLIENT: local machine] The solution that resolved my problem was: Login to SqlExpress via SQL Server Management Studio Go to the “Security” directory … Read more
String concatenation is faster in ECMAScript. Here’s a benchmark I created to show you: http://jsben.ch/#/OJ3vo
You could try to connect? For quick (offline) validation, perhaps use DbConnectionStringBuilder to parse it… DbConnectionStringBuilder csb = new DbConnectionStringBuilder(); csb.ConnectionString = “rubb ish”; // throws But to check whether the db exists, you’ll need to try to connect. Simplest if you know the provider, of course: using(SqlConnection conn = new SqlConnection(cs)) { conn.Open(); // … Read more
Because .Net Core applications are self hosted and can almost run on any platform, they are no longer hosted on IIS. The .Net Core application settings are stored in a Json format (appsettings.json) by default while .Net Framework application configurations are stored in a web.config file in XML format. For more info about .Net Core … Read more
Use " instead of ” to escape it. web.config is an XML file so you should use XML escaping. connectionString=”Server=dbsrv;User ID=myDbUser;Password=somepass"word” See this forum thread. Update: " should work, but as it doesn’t, have you tried some of the other string escape sequences for .NET? \” and “”? Update 2: Try single quotes for the … Read more
If you’re using EF 6 (just released) you have an alternative. Dependency Resolution You can use the new dependency resolution feature to register an implementation of IManifestTokenResolver (described in this preview documentation as IManifestTokenService). This article gives a bit more information on how to use DbConfiguration. The easiest way to use it is like this: … Read more
Referencing the connection string should be done as such: MySQLHelper.ExecuteNonQuery( ConfigurationManager.ConnectionStrings[“MyDB”].ConnectionString, CommandType.Text, sqlQuery, sqlParams); ConfigurationManager.AppSettings[“ConnectionString”] would be looking in the AppSettings for something named ConnectionString, which it would not find. This is why your error message indicated the “ConnectionString” property has not been initialized, because it is looking for an initialized property of AppSettings named … Read more
Just set Integrated Security=False and it will work ,according to a comment difference between True and False is: True ignores User ID and Password if provided and uses those of the running process, SSPI(Security Support Provider Interface ) it will use them if provided which is why MS prefers this. They are equivalent in that … Read more
Sql Server fire this error when your application don’t have enough rights to access the database. there are several reason about this error . To fix this error you should follow the following instruction. Try to connect sql server from your server using management studio . if you use windows authentication to connect sql server … Read more
Unfortunately, you can’t set ImportMixedTypes or TypeGuessRows from the connection string since those settings are defined in the registry. For the ACE OleDb driver, they’re stored at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Access Connectivity Engine\Engines\Excel in the registry. So, you can simplify your connection string to: conn.ConnectionString = @”Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Nick\Desktop\Pricing2.xlsx;Extended Properties=””Excel 12.0 Xml;HDR=Yes;IMEX=1;”””; Once you set TypeGuessRows to 0 and … Read more