private string ChangeIdentity(string tablesDdl)
{
List <string> ddl = new List <string>(Regex.Split(tablesDdl, @";\s*").Where(s => !string.IsNullOrWhiteSpace(s)));
for (int i = 0; i < ddl.Count; i++)
{
string identity = null;
Match match = Regex.Match(ddl[i], @"(?<=^CREATE TABLE \[)[^\]]*(?=\])", RegexOptions.Singleline);
if (match.Success)
{
identity = db.GetAutoincNext(match.Value);
}
if (identity != null)
{
ddl[i] = Regex.Replace(ddl[i], @"(?<=\r\n\ *\[.*\].* IDENTITY \()\d+(?=,)", identity, RegexOptions.Singleline);
}
}
StringBuilder sb = new StringBuilder();
foreach (string s in ddl)
{
sb.AppendLine(s + ";" + Environment.NewLine);
}
return(sb.ToString());
}
private string GetExportData(SqlCeDb db, TreeView treeView)
{
StringBuilder ddl = new StringBuilder();
foreach (TreeNode node in treeView.Nodes)
{
StringBuilder sb = new StringBuilder();
int count = 0;
if (node.Checked)
{
foreach (TreeNode n in node.Nodes)
{
if (n.Checked)
{
sb.Append("[" + n.Text + "], ");
count++;
}
}
}
if (count == 0)
{
continue;
}
string schema = db.GetTableDdl(node.Text, true, false, false, false);
string identity = db.GetAutoincNext(node.Text);
if (identity != null)
{
ddl.AppendLine("SET IDENTITY_INSERT [" + node.Text + "] ON;" + Environment.NewLine);
}
string fields = sb.ToString().TrimEnd(',', ' ');
string sqlSelect = "SELECT " + fields + " FROM [" + node.Text + "]";
IDataReader dr = (IDataReader)db.ExecuteSql(sqlSelect, false);
object[] values = new object[count];
while (dr.Read())
{
ddl.Append("INSERT INTO [" + node.Text + "] (" + fields + ") VALUES (");
dr.GetValues(values);
for (int i = 0; i < count; i++)
{
string s;
if (dr.IsDBNull(i))
{
s = "NULL";
}
else
{
CultureInfo ci = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
Type t = values[i].GetType();
bool numeric = t == typeof(Byte) || t == typeof(Int16) || t == typeof(Int32) ||
t == typeof(Int64) || t == typeof(Decimal) || t == typeof(Double) || t == typeof(Single);
if (t == typeof(Byte[]))
{
s = "0x" + BitConverter.ToString(values[i] as Byte[]).Replace("-", "");
}
else if (t == typeof(DateTime))
{
s = "'" + ((DateTime)values[i]).ToString("yyyy.MM.dd HH:mm:ss.fff") + "'";
}
else
{
s = numeric ? values[i].ToString() : "'" + values[i].ToString().Replace("'", "''") + "'";
}
Thread.CurrentThread.CurrentCulture = ci;
}
ddl.Append(s);
if (i < count - 1)
{
ddl.Append(", ");
}
}
ddl.AppendLine(");" + Environment.NewLine);
}
dr.Close();
if (identity != null)
{
ddl.AppendLine("SET IDENTITY_INSERT [" + node.Text + "] OFF;" + Environment.NewLine);
}
}
return(ddl.ToString());
}
