日历到数据网格
本文关键字:网格 数据网 数据 日历 | 更新日期: 2023-09-27 18:04:21
我似乎真的无法确定完成任务需要什么。我有一个数据网格在asp.net在VS2010这显示数据从SQL数据库,在这些字段之一是一个"开始日期"。
我也有一个简单的日历运行。我想要的是能够更新我的DataGrid通过传递它的选定日期,并使用它作为"StartDate"调用DataGrid上的选择,所以只有记录的开始日期将出现。
我在网上看过,但是这些例子都很老或者有点混乱。
如果有人可以布局的步骤(如果可能的样例代码)涉及到实现这一点,我会很感激或任何资源或例子,你遇到了,虽然我已经搜索了一段时间,因此帖子!
谢谢。
我现在拥有的是
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Calendar1.VisibleDate = DateTime.Today;
strConn = @"Data Source=PC88;Initial Catalog=Bookings;Integrated Security=True";
mycn = new SqlConnection(strConn);
myda = new SqlDataAdapter("Select * FROM Bookings", mycn);
myda.Fill(ds, "Table");
}
else
{
// CalendarChange();
Calendar1.VisibleDate = DateTime.Today;
strConn = @"Data Source=PC88;Initial Catalog=Bookings;Integrated Security=True";
mycn = new SqlConnection(strConn);
myda = new SqlDataAdapter("Select * FROM Bookings", mycn);
myda.Fill(ds, "Table");
}
}
protected void CalendarDRender(object sender, System.Web.UI.WebControls.DayRenderEventArgs e)
{
// If the month is CurrentMonth
if (!e.Day.IsOtherMonth)
{
foreach (DataRow dr in ds.Tables[0].Rows)
{
if ((dr["Start"].ToString() != DBNull.Value.ToString()))
{
DateTime dtEvent = (DateTime)dr["Start"];
if (dtEvent.Equals(e.Day.Date))
{
e.Cell.BackColor = Color.PaleVioletRed;
}
}
}
}
//If the month is not CurrentMonth then hide the Dates
else
{
e.Cell.Text = "";
}
}
private void Calendar1_SelectionChanged(object sender, System.EventArgs e)
{
myda = new SqlDataAdapter("Select * from Bookings where Start ='" + Calendar1.SelectedDate.ToString() + "'", mycn);
dsSelDate = new DataSet();
myda.Fill(dsSelDate, "AllTables");
if (dsSelDate.Tables[0].Rows.Count == 0 )
{
GridView1.Visible = false;
}
else
{
GridView1.Visible = true;
GridView1.DataSource = dsSelDate;
GridView1.DataBind ();
}
}
}
我做错了什么?
EDIT__
最后它工作了,这是我的代码,如果有人有类似的问题/需求。
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (!IsPostBack)
{
Calendar1.VisibleDate = DateTime.Today;
strConn = @"Data Source=BBC-PC-S054683;Initial Catalog=Bookings;Integrated Security=True";
mycn = new SqlConnection(strConn);
myda = new SqlDataAdapter("Select * FROM Bookings", mycn);
myda.Fill(ds, "Table");
}
else
{ // CalendarChange();
Calendar1.VisibleDate = DateTime.Today;
strConn = @"Data Source=PC-Name;Initial Catalog=Bookings;Integrated Security=True";
mycn = new SqlConnection(strConn);
myda = new SqlDataAdapter("Select * FROM Bookings", mycn);
myda.Fill(ds, "Table");
}
BindGrid();
}
}
private DataTable GetRecords()
{
SqlConnection conn = new SqlConnection(strConnection);
conn.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "Select * from Bookings";
SqlDataAdapter dAdapter = new SqlDataAdapter();
dAdapter.SelectCommand = cmd;
DataSet objDs = new DataSet();
dAdapter.Fill(objDs);
return objDs.Tables[0];
}
public void Calendar1_SelectionChanged(object sender, System.EventArgs e)
{
String Date = Calendar1.SelectedDate.ToLongDateString();
SqlConnection con = new SqlConnection(strConnection);//put connection string here
SqlCommand objCommand = new SqlCommand("SELECT * FROM Bookings where Date = '" + Date + "'", con);//let MyTable be a database table
con.Open();
SqlDataReader dr = objCommand.ExecuteReader();
GridView.DataSource = dr;
GridView.DataBind();
}
您需要过滤您的DataGridView
。
try
{
myDataSet = new DataSet();
myDataSet.CaseSensitive = true;
DataAdapter.SelectCommand.Connection = myConnection;
DataAdapter.TableMappings.Clear();
DataAdapter.TableMappings.Add("Table", "TableName");
DataAdapter.Fill(myDataSet);
myDataView = new DataView(myDataSet.Tables["TableName"], "TIMESTAMP >= '" +
Convert.ToDateTime(fromDate) + "' AND TIMESTAMP <= '" +
Convert.ToDateTime(toDate) + "'", "TIMESTAMP", DataViewRowState.CurrentRows);
dgv.DataSource = myDataView;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
TIMESTAMP
是我的DataGridView中的一列。注意:这只是一个代码片段!