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public int ExecuteSql(string SQLString)
{
using (SQLiteConnection connection = MenageDBConnect.GetConnection())
{
// using (SQLiteCommand cmd = new SQLiteCommand(SQLString, connection))
using (SQLiteCommand cmd = new SQLiteCommand(SQLString, connection))
{
try
{
connection.Open();
int rows = cmd.ExecuteNonQuery();
connection.Close();
 
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DateTime endTime=DateTime(em_2.Text)
string sql
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