C# 连接到数据库并列出数据库

C# connect to database and list the databases(C# 连接到数据库并列出数据库)
本文介绍了C# 连接到数据库并列出数据库的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

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.

这篇关于C# 连接到数据库并列出数据库的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持编程学习网!

本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除!

相关文档推荐

DispatcherQueue null when trying to update Ui property in ViewModel(尝试更新ViewModel中的Ui属性时DispatcherQueue为空)
Drawing over all windows on multiple monitors(在多个监视器上绘制所有窗口)
Programmatically show the desktop(以编程方式显示桌面)
c# Generic Setlt;Tgt; implementation to access objects by type(按类型访问对象的C#泛型集实现)
InvalidOperationException When using Context Injection in ASP.Net Core(在ASP.NET核心中使用上下文注入时发生InvalidOperationException)
LINQ many-to-many relationship, how to write a correct WHERE clause?(LINQ多对多关系,如何写一个正确的WHERE子句?)