[英]Cannot find table 0 when running calendar
构建的代码可将员工的工作日期附加到日历上,当将员工分配给工作日期时,日历将标记为红色。
但是在尝试运行代码时找不到表0
系统IndexOutOfRangeException HResult 0x80131508消息找不到表0。
public partial class Schema: System.Web.UI.Page {
protected DataSet dsDays;
protected void Page_Load(object sender, EventArgs e) {
Calendar1.VisibleDate = DateTime.Today;
FillDayDataset();
}
protected void FillDayDataset() {
dsDays = GetCurrentMonthData();
}
protected DataSet GetCurrentMonthData() {
DataSet dsMonth = new DataSet();
String query;
query = "SELECT * FROM Schema WHERE EmployeeId = @EmployeeId";
Session["EmployeeId"]));
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(dbCommand);
try {
sqlDataAdapter.Fill(dsMonth);
} catch {}
return dsMonth;
}
protected void Calendar1_DayRender(object sender, DayRenderEventArgs e) {
if (dsDays != null) {
if (Session["EmployeeId"] != null) {
foreach(DataRow dr in dsDays.Tables[0].Rows) {
if ((DateTime) dr["Arbetsdatum"] == e.Day.Date) {
e.Cell.BackColor = System.Drawing.Color.Pink;
}
}
}
}
}
protected void Calendar1_VisibleMonthChanged(object sender,
MonthChangedEventArgs e) {
FillDayDataset();
}
}
我想命令sqlDataAdapter.Fill(dsMonth);
引发异常。 您应该捕获异常以检测出问题所在。
catch (Exception e)
{
Console.WriteLine("{0} Exception caught.", e);
}
而且,您缺少数据库连接。
SqlConnection connection = new SqlConnection(connectionString);
SqlDataAdapter sqlDataAdapter = new SqlDataAdapter();
sqlDataAdapter.SelectCommand = new SqlCommand(query, connection);
sqlDataAdapter.Fill(dataset);
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