我正在开发一个链接到本地数据库的应用程序。我想要的是从数据库中以数据形式显示,但在标签中。我创建了一个标签列表,但在 command.Executescalar() 中出现此错误,我尝试获取在数据库中输入的行数,因此该列表可以创建确切的行数。谢谢 !
int infoCount = (int)command.ExecuteScalar();
var pozitie = 50; //50 pixeli
for (var i = infoCount ; i >= 0; i--)
{
//creez si adaug un nou label in form
Label label = new Label();
label.Text = dataTable.Rows[i][i].ToString();
label.Location = new Point(pozitie, 150);
label.AutoSize = true;
//afisez in form
//adaug in colectie
labels.Add(label);
}
乐:
var query = "SELECT * FROM grupe WHERE Nume='" + nume + "'";
var command = new SqlCeCommand(query, conn);
var dataAdapter = new SqlCeDataAdapter(command);
var dataTable = new DataTable();
dataAdapter.Fill(dataTable);