我正在编写 ac# windows 应用程序以将一些数据存储到 sql server 数据库中,但是当我尝试将我的 mdf 数据库文件附加到 Visual Studio 时,出现上述错误,代码如下,我该怎么办?谢谢。
public partial class Add_Client : Form
{
SqlConnection clientConnection;
string connString;
SqlCommand insertCommand;
public Add_Client()
{
InitializeComponent();
connString = "Data Source=ESLAM\\MSSQLSERVER;Initial Catalog=Clients; Integrated security=true ";
clientConnection = new SqlConnection();
clientConnection.ConnectionString = connString;
}
private void button1_Click(object sender, EventArgs e)
{
try
{
SqlCommand insertCommand = new SqlCommand();
insertCommand.Connection = clientConnection;
insertCommand.CommandText = "INSERT INTO Client_Info values(@Client_Name,@Autorization_No,@Issue_Type,@Status)";
insertCommand.Parameters.Add("@Client_Name", SqlDbType.NVarChar, 60).Value = txt_Name.Text;
insertCommand.Parameters.Add("@Autorization_No", SqlDbType.Int, 60).Value = txt_Auth.Text.ToString();
insertCommand.Parameters.Add("@Issue_Type", SqlDbType.Text, 200).Value = txt_Iss.Text;
insertCommand.Parameters.Add("@Status", SqlDbType.Text, 200).Value = txt_Iss.Text;
//insertCommand.Parameters.Add("@Date To Memorize", SqlDbType.Date, 15).Value=Ca_Mem.se;
insertCommand.Connection.Open();
insertCommand.ExecuteNonQuery();
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (clientConnection != null)
{
clientConnection.Close();
}
}
}
}