このスクリプトを実行すると、「文字列から日付や時刻を変換するときに変換に失敗しました」というエラーが表示されます。
「While (objReader.Read())」セクションを指します
namespace MedicalDataExporter
{
public partial class frmSales : Form
{
public frmSales()
{
InitializeComponent();
}
private void dtpFrom_ValueChanged(object sender, EventArgs e)
{
}
private void btnExtract_Click(object sender, EventArgs e)
{
SqlConnection objConn = new SqlConnection("Data Source=XXXX;Initial Catalog=YYYY;Persist Security Info=True;User ID=blah;Password=blah");
// String conStr = Properties.Settings.Default.MedpracConnectionString;
// System.Data.SqlClient.SqlConnection objConn = new System.Data.SqlClient.SqlConnection(conStr);
objConn.Open();
SqlCommand objCmd = new SqlCommand("SELECT CONVERT(char(8), InvDate,3) AS InvDate,InvoiceNo,EmployerCode,TaxAmount + SubTotal AS Amount,'' AS Payment FROM Invoice WHERE (InvDate >= CONVERT(datetime, '"+dtpFrom.Text +"', 3)) AND (InvDate <= CONVERT(datetime, '"+dtpTo.Text+"',3))", objConn);
SqlDataReader objReader;
objReader = objCmd.ExecuteReader();
System.IO.FileStream fs = new System.IO.FileStream("C:\\CMSExportedData\\Sales-" + DateTime.Now.ToString("dd-MM-yy") + ".txt", System.IO.FileMode.Create);
System.IO.StreamWriter sw = new System.IO.StreamWriter(fs, System.Text.Encoding.Default);
int count = 0;
while (objReader.Read())
{
for (int i = 0; i < 5; i++)
{
if (!objReader.IsDBNull(i))
{
string s;
s = objReader.GetDataTypeName(i);
//MessageBox.Show(s);
if (objReader.GetDataTypeName(i) == "char")
{
sw.Write(objReader.GetString(i));
}
else if (objReader.GetDataTypeName(i) == "money")
{
sw.Write(objReader.GetSqlMoney(i).ToString());
}
else if (objReader.GetDataTypeName(i) == "nvarchar")
{
sw.Write(objReader.GetString(i));
}
}
if (i < 4)
{
sw.Write("\t");
}
}
count = count + 1;
sw.WriteLine();
}
sw.Flush();
fs.Close();
objReader.Close();
objConn.Close();
MessageBox.Show(count + " records exported successfully.");
this.Close();
}
private void groupBox1_Enter(object sender, EventArgs e)
{
}
}
}