C# 连接到数据库并列出数据库 [英] C# connect to database and list the databases

问题描述

Possible Duplicate:
SQL Server query to find all current database names

I am trying to figure out how to list the databases after connecting to the servers without specifying a database first.

sqlConnection1 = new SqlConnection("Server=" + sqlServer + ";Database=" + database +    
";User ID=" + userName + ";Password=" + password + ";Trusted_Connection=False;");

So basically what i want is the end user to connect to the sql server, then have a drop down list populated with the list of db's they can connect and query.

Ideas?

解决方案

You can use SqlConnection.GetSchema:

using(var con = new SqlConnection("Data Source=Yourserver; Integrated Security=True;"))
{
    con.Open();
    DataTable databases = con.GetSchema("Databases");
    foreach (DataRow database in databases.Rows)
    {
        String databaseName = database.Field<String>("database_name");
        short dbID = database.Field<short>("dbid");
        DateTime creationDate = database.Field<DateTime>("create_date");
    }
} 

SQL Server Schema Collections (ADO.NET)

To determine the list of supported schema collections, call the GetSchema method with no arguments, or with the schema collection name "MetaDataCollections". This will return a DataTable with a list of the supported schema collections, the number of restrictions that they each support, and the number of identifier parts that they use.

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