public void ShowFieldsInTable()
{
Txt_TableName.Text = TableName;
SQLiteDataAdapter da = new SQLiteDataAdapter("pragma table_info (" + TableName + ")", cnn);
DataTable dt = new DataTable();
da.Fill(dt);
_fieldlist.Clear();
foreach (DataRow dr in dt.Rows)
{
Models.TableField _fld = new Models.TableField();
_fld.FldName = dr[1].ToString();
_fld.FldType = dr[2].ToString() == "INT" ? "INTEGER" : dr[2].ToString();
_fld.FldIsNotNull = Convert.ToInt16(dr[3]) == 0 ? "ALLOW NULL" : "NOT NULL";
_fld.FldDefaultValue = dr[4].ToString();
_fld.FldIsPrimary = Convert.ToInt16(dr[5]) == 0?"NO":"YES"; ////YES, NO
_fld.FldIsUpdated = false;
_fld.FldIsUnique = FXS.IsFieldUnique(TableName, _fld.FldName);
_fld.FldCollation = FXS.GetFieldCollation(TableName, _fld.FldName);
_fieldlist.Add(_fld);
_origfieldlist.Add(_fld);
}
Dg_FieldList.DataSource = _fieldlist;
for (int i = 0; i < Dg_FieldList.Rows.Count; i++)
{
Dg_FieldList.Rows[i].ReadOnly = true;
foreach (DataGridViewCell cell in Dg_FieldList.Rows[i].Cells)
{
cell.ReadOnly = true;
}
}
}
private void EditTheTable()
{
cnn.Open();
SQLiteCommand emir = new SQLiteCommand("", cnn);
//SİLİNEN SÜTUN VAR MI
bool _hasdele = false;
bool _haschange = false;
foreach (Models.TableField fld in _origfieldlist)
{
if (!_fieldlist.Contains(fld))
{
_hasdele = true;
}
if (fld.FldIsUpdated)
{
_haschange = true;
}
}
if (_hasdele || _haschange)
{
string _columnlist = "", _appendcolumn = "";
foreach (Models.TableField fld in _fieldlist)
{
_columnlist = _columnlist + "," + fld.FldName;
_appendcolumn = _appendcolumn + "," + FXS.PrepareFieldString(fld);
}
_columnlist = _columnlist.Substring(1);
_appendcolumn = _appendcolumn.Substring(1);
emir.CommandText = "BEGIN TRANSACTION;" +
"CREATE TEMPORARY TABLE t1_backup(" + _columnlist + ");" +
"INSERT INTO t1_backup SELECT " + _columnlist + " FROM " + TableName + ";" +
"DROP TABLE " + TableName + ";" +
"CREATE TABLE " + TableName + " (" + _appendcolumn + ");" +
"INSERT INTO " + TableName + " SELECT " + _columnlist + " FROM t1_backup;" +
"DROP TABLE t1_backup;" +
"COMMIT;";
try
{
emir.ExecuteNonQuery();
}
catch (Exception ex) { MessageBox.Show(ex.Message); }
}
//YENİ EKLENEN SÜTUN VAR MI
foreach (Models.TableField fld in _fieldlist)
{
if (_origfieldlist.Contains(fld))
{
continue;
}
try
{
emir.CommandText = "ALTER TABLE " + TableName + " ADD COLUMN " + FXS.PrepareFieldString(fld);
emir.ExecuteNonQuery();
}
catch (Exception ex) { MessageBox.Show(ex.Message); }
}
cnn.Close();
this.Close();
}
private void CreateTheTable()
{
string _tblCODE = "CREATE TABLE [" + Txt_TableName.Text + "] (";
foreach (Models.TableField fld in _fieldlist)
{
_tblCODE = _tblCODE + FXS.PrepareFieldString(fld) + ",";
}
_tblCODE = _tblCODE.Remove(_tblCODE.Length - 1) + ");";
try
{
SQLiteCommand emir = new SQLiteCommand(_tblCODE, cnn);
cnn.Open();
emir.ExecuteNonQuery();
MainForm frmp = (MainForm)Application.OpenForms["MainForm"];
frmp.ShowDbStructure();
this.Close();
}
catch (Exception ex) { MessageBox.Show(ex.Message); }
}
