DateTimePicker不顯示所選日期

Question

 var dtp = dateTimePicker1.Value.Date;
 var dtp2 = dateTimePicker2.Value.Date ;

SqlDataAdapter da1 = new SqlDataAdapter("SELECT * FROM Tabledbstatus WHERE Date BETWEEN'" + dateTimePicker1.Value.ToString() + "' and '" + dateTimePicker2.Value.ToString() + "'", conn);

da1.Fill(ds1, "TS1"); 

dv1 = new DataView(ds1.Tables["TS1"]);

dataGridView1.DataSource = ds1.Tables["TS1"];

示例：我選擇的日期為01-09-2016至03-09-2016，但不顯示日期為01-09-2016，而是顯示為02-09-2016至03/2016

*我想顯示日期01-09-2016至2016/03/09 *

Answer 1

您可以更改以下代碼行：

SqlDataAdapter da1 = new SqlDataAdapter("SELECT * FROM Tabledbstatus WHERE Date BETWEEN'" + dateTimePicker1.Value.ToString() + "' and '" + dateTimePicker2.Value.ToString() + "'", conn);

至

SqlDataAdapter da1 = new SqlDataAdapter("SELECT * FROM Tabledbstatus WHERE Date BETWEEN'" + dateTimePicker1.Value.Date.ToString() + "' and '" + dateTimePicker2.Value.Date.AddDays(1).ToString() + "'", conn);

如果您為dateTimePicker1選擇01-09-2016和為dateTimePicker2選擇03-09-2016，它將獲得介於01-09-2016 00.00.00 AM到04-09-2016 00.00.00 AM之間的值。

Answer 2

這可能會導致datetime字段，您應嘗試選擇從到的日期添加小時數。

SqlDataAdapter da1 = new SqlDataAdapter("SELECT * FROM Tabledbstatus WHERE Date BETWEEN'" + dateTimePicker1.Value.ToString() + " 00:00:00' and '" + dateTimePicker2.Value.ToString() + " 23:59:59'", conn);

編輯：因為它第一次給您帶來問題，您可以嘗試這樣的事情：

// after line
var dtp = dateTimePicker1.Value.Date;
// add 
dtp = dtp.AddDays(-1.0);