Пример #1
0
        private void InvokeBindValueCallback(int index, SQLiteParameter parameter, out bool complete)
        {
            SQLiteTypeCallbacks sQLiteTypeCallback;

            complete = false;
            SQLiteConnectionFlags sQLiteConnectionFlag = this._flags;
            SQLiteStatement       sQLiteStatement      = this;

            sQLiteStatement._flags = sQLiteStatement._flags & (SQLiteConnectionFlags.LogPrepare | SQLiteConnectionFlags.LogPreBind | SQLiteConnectionFlags.LogBind | SQLiteConnectionFlags.LogCallbackException | SQLiteConnectionFlags.LogBackup | SQLiteConnectionFlags.NoExtensionFunctions | SQLiteConnectionFlags.BindUInt32AsInt64 | SQLiteConnectionFlags.BindAllAsText | SQLiteConnectionFlags.GetAllAsText | SQLiteConnectionFlags.NoLoadExtension | SQLiteConnectionFlags.NoCreateModule | SQLiteConnectionFlags.NoBindFunctions | SQLiteConnectionFlags.NoLogModule | SQLiteConnectionFlags.LogModuleError | SQLiteConnectionFlags.LogModuleException | SQLiteConnectionFlags.TraceWarning | SQLiteConnectionFlags.ConvertInvariantText | SQLiteConnectionFlags.BindInvariantText | SQLiteConnectionFlags.NoConnectionPool | SQLiteConnectionFlags.UseConnectionPool | SQLiteConnectionFlags.UseConnectionTypes | SQLiteConnectionFlags.NoGlobalTypes | SQLiteConnectionFlags.StickyHasRows | SQLiteConnectionFlags.StrictEnlistment | SQLiteConnectionFlags.MapIsolationLevels | SQLiteConnectionFlags.DetectTextAffinity | SQLiteConnectionFlags.DetectStringType | SQLiteConnectionFlags.NoConvertSettings | SQLiteConnectionFlags.BindDateTimeWithKind | SQLiteConnectionFlags.RollbackOnException | SQLiteConnectionFlags.DenyOnException | SQLiteConnectionFlags.InterruptOnException | SQLiteConnectionFlags.UnbindFunctionsOnClose | SQLiteConnectionFlags.NoVerifyTextAffinity | SQLiteConnectionFlags.UseConnectionReadValueCallbacks | SQLiteConnectionFlags.UseParameterNameForTypeName | SQLiteConnectionFlags.UseParameterDbTypeForTypeName | SQLiteConnectionFlags.NoVerifyTypeAffinity | SQLiteConnectionFlags.AllowNestedTransactions | SQLiteConnectionFlags.BindDecimalAsText | SQLiteConnectionFlags.GetDecimalAsText | SQLiteConnectionFlags.BindInvariantDecimal | SQLiteConnectionFlags.GetInvariantDecimal | SQLiteConnectionFlags.BindAndGetAllAsText | SQLiteConnectionFlags.ConvertAndBindInvariantText | SQLiteConnectionFlags.BindAndGetAllAsInvariantText | SQLiteConnectionFlags.ConvertAndBindAndGetAllAsInvariantText | SQLiteConnectionFlags.UseParameterAnythingForTypeName | SQLiteConnectionFlags.LogAll | SQLiteConnectionFlags.LogDefault | SQLiteConnectionFlags.Default | SQLiteConnectionFlags.DefaultAndLogAll);
            try
            {
                if (parameter != null)
                {
                    SQLiteConnection connection = SQLiteStatement.GetConnection(this);
                    if (connection != null)
                    {
                        string typeName = parameter.TypeName;
                        if (typeName == null && (this._flags & SQLiteConnectionFlags.UseParameterNameForTypeName) == SQLiteConnectionFlags.UseParameterNameForTypeName)
                        {
                            typeName = parameter.ParameterName;
                        }
                        if (typeName == null && (this._flags & SQLiteConnectionFlags.UseParameterDbTypeForTypeName) == SQLiteConnectionFlags.UseParameterDbTypeForTypeName)
                        {
                            typeName = SQLiteConvert.DbTypeToTypeName(connection, parameter.DbType, this._flags);
                        }
                        if (typeName != null)
                        {
                            if (connection.TryGetTypeCallbacks(typeName, out sQLiteTypeCallback) && sQLiteTypeCallback != null)
                            {
                                SQLiteBindValueCallback bindValueCallback = sQLiteTypeCallback.BindValueCallback;
                                if (bindValueCallback != null)
                                {
                                    object bindValueUserData = sQLiteTypeCallback.BindValueUserData;
                                    bindValueCallback(this._sql, this._command, sQLiteConnectionFlag, parameter, typeName, index, bindValueUserData, out complete);
                                }
                            }
                        }
                    }
                }
            }
            finally
            {
                this._flags |= SQLiteConnectionFlags.UseConnectionBindValueCallbacks;
            }
        }
Пример #2
0
        /// <summary>
        /// Turn a datatable into a table in the temporary database for the connection
        /// </summary>
        /// <param name="cnn">The connection to make the temporary table in</param>
        /// <param name="table">The table to write out</param>
        /// <param name="dest">The temporary table name to write to</param>
        private void DataTableToTable(SQLiteConnection cnn, DataTable table, string dest)
        {
            StringBuilder        sql     = new StringBuilder();
            SQLiteCommandBuilder builder = new SQLiteCommandBuilder();

            using (SQLiteCommand cmd = cnn.CreateCommand())
                using (DataTable source = new DataTable())
                {
                    sql.AppendFormat(CultureInfo.InvariantCulture, "CREATE TEMP TABLE {0} (", builder.QuoteIdentifier(dest));
                    string separator            = String.Empty;
                    SQLiteConnectionFlags flags = cnn.Flags;
                    foreach (DataColumn dc in table.Columns)
                    {
                        DbType dbtypeName = SQLiteConvert.TypeToDbType(dc.DataType);
                        string typeName   = SQLiteConvert.DbTypeToTypeName(cnn, dbtypeName, flags);

                        sql.AppendFormat(CultureInfo.InvariantCulture, "{2}{0} {1} COLLATE NOCASE", builder.QuoteIdentifier(dc.ColumnName), typeName, separator);
                        separator = ", ";
                    }
                    sql.Append(")");

                    cmd.CommandText = sql.ToString();
                    cmd.ExecuteNonQuery();

                    cmd.CommandText = String.Format("SELECT * FROM TEMP.{0} WHERE 1=2", builder.QuoteIdentifier(dest));
                    using (SQLiteDataAdapter adp = new SQLiteDataAdapter(cmd))
                    {
                        builder.DataAdapter = adp;

                        adp.Fill(source);

                        foreach (DataRow row in table.Rows)
                        {
                            object[] arr = row.ItemArray;

                            source.Rows.Add(arr);
                        }
                        adp.Update(source);
                    }
                }
        }