C# WinForm SQL Server - .NET技术 / C#

现在正做一个像SQL Server2005那样登录的WinForm程序,我该如何实现?

在网上查找了很久,都没找到相关的...

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在Main中先调用登陆窗口,成功后再显示主窗口

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引用

在Main中先调用登陆窗口,成功后再显示主窗口

我现在要实现的是像SQL Server 2005那样进行登录,连接数据库的部分该如何实现?

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---------- ADO.NET

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窗体设计如图，代码参考如下：
C# code:

SqlConnection sqlConn;
string sqlConnStr = "";
SqlConnectionStringBuilder sqlConnStrBuilder = new SqlConnectionStringBuilder();
sqlConnStrBuilder.DataSource = txtDataSource.text;
sqlConnStrBuilder.InitialCatalog = txtDataBase.text;
sqlConnStrBuilder.UserID = txtUsr.text;
sqlConnStrBuilder.Password = txtPass.text;
sqlConnStr = sqlConnStrBuilder.ConnectionString;
sqlConn = new SqlConnection(sqlConnStr);

try
{
sqlConn.Open();
if (sqlConn.State == ConnectionState.Open)
MessageBox.Show("连接成功！");
else
MessageBox.Show("连接失败！");
}
catch
{
MessageBox.Show("连接发生异常！");
}

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