显示ConnectionString对话框

Question

我正在尝试在C#中创建一个应该能够创建,备份和还原SQL Server数据库的程序.

为此,用户需要能够为所需的SQL Server(和数据库)设置连接字符串.

我想使用与Visual Studio相同的对话框来创建连接字符串.

这可能吗？

Answer 1

此答案中链接的数据连接对话框组件不再可供下载.

然而,一个(显然有点改变的)DataConnectionDialog组件已经在NuGet上可用.

安装:

通过NuGet包管理器控制台将组件添加到Visual Studio项目:

Install-Package DataConnectionDialog

用法示例:

// using Microsoft.Data.ConnectionUI;
// using System.Windows.Forms;

bool TryGetDataConnectionStringFromUser(out string outConnectionString)
{
    using (var dialog = new DataConnectionDialog())
    {
        // If you want the user to select from any of the available data sources, do this:
        DataSource.AddStandardDataSources(dialog);

        // OR, if you want only certain data sources to be available
        // (e.g. only SQL Server), do something like this instead: 
        dialog.DataSources.Add(DataSource.SqlDataSource);
        dialog.DataSources.Add(DataSource.SqlFileDataSource);
        …

        // The way how you show the dialog is somewhat unorthodox; `dialog.ShowDialog()`
        // would throw a `NotSupportedException`. Do it this way instead:
        DialogResult userChoice = DataConnectionDialog.Show(dialog);

        // Return the resulting connection string if a connection was selected:
        if (userChoice == DialogResult.OK)
        { 
            outConnectionString = dialog.ConnectionString;
            return true;
        }
        else
        {
            outConnectionString = null;
            return false;
        }
    }
}

Answer 2

注意:下面提到的对话框组件不再可供下载.除非您在过去检索过它,否则您可能无法获得此答案的示例代码.

替代方案:DataConnectionDialogNuGet现在有另外一种可用方式.有关详情,请参阅此答案.

MSDN Archive Gallery上的"数据连接对话框"(截至2015年9月1日)

数据连接对话框是随Visual Studio一起发布的数据库工具组件.它允许用户构建连接字符串并连接到特定的数据源.试试这个..

C#示例:

static void Main(string[] args)
{
    DataConnectionDialog dcd = new DataConnectionDialog();
    DataConnectionConfiguration dcs = new DataConnectionConfiguration(null);
    dcs.LoadConfiguration(dcd);

    if (DataConnectionDialog.Show(dcd) == DialogResult.OK)
    {
        // load tables
        using (SqlConnection connection = new SqlConnection(dcd.ConnectionString))
        {
            connection.Open();
            SqlCommand cmd = new SqlCommand("SELECT * FROM sys.Tables", connection);
            using (SqlDataReader reader = cmd.ExecuteReader())
            {
                while (reader.Read())
                {
                    Console.WriteLine(reader.HasRows);
                }
            }
        }
    }
    dcs.SaveConfiguration(dcd);
}

这里也提供源代码.我们可以根据许可证将源代码与我们的应用程序集成和重新分发.