/// <summary>
/// 填充表结构字段
/// </summary>
/// <param name="tableField">结构字段</param>
/// <param name="schemaDataRow">从数据库中获得的结构表行</param>
private void FillTableSchemaField(TableField tableField, DataRow schemaDataRow)
{
tableField.ColumnName = (schemaDataRow["ColumnName"] is DBNull) ? null : (String)schemaDataRow["ColumnName"];
tableField.ColumnOrdinal = (schemaDataRow["ColumnOrdinal"] is DBNull) ? null : (Int32?)schemaDataRow["ColumnOrdinal"];
tableField.ColumnSize = (schemaDataRow["ColumnSize"] is DBNull) ? null : (Int32?)schemaDataRow["ColumnSize"];
tableField.NumericPrecision = (schemaDataRow["NumericPrecision"] is DBNull) ? null : (Int16?)schemaDataRow["NumericPrecision"];
tableField.NumericScale = (schemaDataRow["NumericScale"] is DBNull) ? null : (Int16?)schemaDataRow["NumericScale"];
tableField.IsUnique = (schemaDataRow["IsUnique"] is DBNull) ? null : (Boolean?)schemaDataRow["IsUnique"];
tableField.IsKey = (schemaDataRow["IsKey"] is DBNull) ? null : (Boolean?)schemaDataRow["IsKey"];
tableField.BaseServerName = (schemaDataRow["BaseServerName"] is DBNull) ? null : (String)schemaDataRow["BaseServerName"];
tableField.BaseCatalogName = (schemaDataRow["BaseCatalogName"] is DBNull) ? null : (String)schemaDataRow["BaseCatalogName"];
tableField.BaseColumnName = (schemaDataRow["BaseColumnName"] is DBNull) ? null : (String)schemaDataRow["BaseColumnName"];
tableField.BaseSchemaName = (schemaDataRow["BaseSchemaName"] is DBNull) ? null : (String)schemaDataRow["BaseSchemaName"];
tableField.BaseTableName = (schemaDataRow["BaseTableName"] is DBNull) ? null : (String)schemaDataRow["BaseTableName"];
tableField.DataType = (schemaDataRow["DataType"] is DBNull) ? null : (Type)schemaDataRow["DataType"];
tableField.AllowDBNull = (schemaDataRow["AllowDBNull"] is DBNull) ? null : (Boolean?)schemaDataRow["AllowDBNull"];
tableField.ProviderType = (schemaDataRow["ProviderType"] is DBNull) ? null : (Int32?)schemaDataRow["ProviderType"];
tableField.IsAliased = (schemaDataRow["IsAliased"] is DBNull) ? null : (Boolean?)schemaDataRow["IsAliased"];
tableField.IsExpression = (schemaDataRow["IsExpression"] is DBNull) ? null : (Boolean?)schemaDataRow["IsExpression"];
tableField.IsIdentity = (schemaDataRow["IsIdentity"] is DBNull) ? null : (Boolean?)schemaDataRow["IsIdentity"];
tableField.IsAutoIncrement = (schemaDataRow["IsAutoIncrement"] is DBNull) ? null : (Boolean?)schemaDataRow["IsAutoIncrement"];
tableField.IsRowVersion = (schemaDataRow["IsRowVersion"] is DBNull) ? null : (Boolean?)schemaDataRow["IsRowVersion"];
tableField.IsHidden = (schemaDataRow["IsHidden"] is DBNull) ? null : (Boolean?)schemaDataRow["IsHidden"];
tableField.IsLong = (schemaDataRow["IsLong"] is DBNull) ? null : (Boolean?)schemaDataRow["IsLong"];
tableField.IsReadOnly = (schemaDataRow["IsReadOnly"] is DBNull) ? null : (Boolean?)schemaDataRow["IsReadOnly"];
tableField.ProviderSpecificDataType = (schemaDataRow["ProviderSpecificDataType"] is DBNull) ? null : (Type)schemaDataRow["ProviderSpecificDataType"];
tableField.DataTypeName = (schemaDataRow["DataTypeName"] is DBNull) ? null : (String)schemaDataRow["DataTypeName"];
tableField.XmlSchemaCollectionDatabase = (schemaDataRow["XmlSchemaCollectionDatabase"] is DBNull) ? null : (String)schemaDataRow["XmlSchemaCollectionDatabase"];
tableField.XmlSchemaCollectionOwningSchema = (schemaDataRow["XmlSchemaCollectionOwningSchema"] is DBNull) ? null : (String)schemaDataRow["XmlSchemaCollectionOwningSchema"];
tableField.XmlSchemaCollectionName = (schemaDataRow["XmlSchemaCollectionName"] is DBNull) ? null : (String)schemaDataRow["XmlSchemaCollectionName"];
tableField.UdtAssemblyQualifiedName = (schemaDataRow["UdtAssemblyQualifiedName"] is DBNull) ? null : (String)schemaDataRow["UdtAssemblyQualifiedName"];
tableField.NonVersionedProviderType = (schemaDataRow["NonVersionedProviderType"] is DBNull) ? null : (Int32?)schemaDataRow["NonVersionedProviderType"];
}
public bool AddField(TableField Field)
{
foreach (TableField field in this.fields)
{
if (field.ColumnName.ToUpper().Trim() == Field.ColumnName.ToUpper().Trim())
{
return(false);
}
}
this.fields.Add(Field);
return(true);
}
/// <summary>
/// 填充表结构表
/// </summary>
/// <param name="baseTable">要填充的Table/View</param>
/// <param name="schemaDataTable">从数据库中获得的结构表</param>
private void FillSchemaTable(BaseTable baseTable, DataTable schemaDataTable)
{
baseTable.Fields.Clear();
foreach (DataRow dr in schemaDataTable.Rows)
{
TableField tableField = new TableField();
FillTableSchemaField(tableField, dr);
baseTable.AddField(tableField);
}
if (baseTable is View)
{
(baseTable as View).CreateCmdText = GetObjectCreateText(baseTable.Name);
}
}
/// <summary>
/// ����ṹ�ֶ�
/// </summary>
/// <param name="tableField">�ṹ�ֶ�</param>
/// <param name="schemaDataRow">�����ݿ��л�õĽṹ����</param>
private void FillTableSchemaField(TableField tableField, DataRow schemaDataRow)
{
tableField.ColumnName = (schemaDataRow["ColumnName"] is DBNull) ? null : (String)schemaDataRow["ColumnName"];
tableField.ColumnOrdinal = (schemaDataRow["ColumnOrdinal"] is DBNull) ? null : (Int32?)schemaDataRow["ColumnOrdinal"];
tableField.ColumnSize = (schemaDataRow["ColumnSize"] is DBNull) ? null : (Int32?)schemaDataRow["ColumnSize"];
tableField.NumericPrecision = (schemaDataRow["NumericPrecision"] is DBNull) ? null : (Int16?)schemaDataRow["NumericPrecision"];
tableField.NumericScale = (schemaDataRow["NumericScale"] is DBNull) ? null : (Int16?)schemaDataRow["NumericScale"];
tableField.IsUnique = (schemaDataRow["IsUnique"] is DBNull) ? null : (Boolean?)schemaDataRow["IsUnique"];
tableField.IsKey = (schemaDataRow["IsKey"] is DBNull) ? null : (Boolean?)schemaDataRow["IsKey"];
tableField.BaseServerName = (schemaDataRow["BaseServerName"] is DBNull) ? null : (String)schemaDataRow["BaseServerName"];
tableField.BaseCatalogName = (schemaDataRow["BaseCatalogName"] is DBNull) ? null : (String)schemaDataRow["BaseCatalogName"];
tableField.BaseColumnName = (schemaDataRow["BaseColumnName"] is DBNull) ? null : (String)schemaDataRow["BaseColumnName"];
tableField.BaseSchemaName = (schemaDataRow["BaseSchemaName"] is DBNull) ? null : (String)schemaDataRow["BaseSchemaName"];
tableField.BaseTableName = (schemaDataRow["BaseTableName"] is DBNull) ? null : (String)schemaDataRow["BaseTableName"];
tableField.DataType = (schemaDataRow["DataType"] is DBNull) ? null : (Type)schemaDataRow["DataType"];
tableField.AllowDBNull = (schemaDataRow["AllowDBNull"] is DBNull) ? null : (Boolean?)schemaDataRow["AllowDBNull"];
tableField.ProviderType = (schemaDataRow["ProviderType"] is DBNull) ? null : (Int32?)schemaDataRow["ProviderType"];
tableField.IsAliased = (schemaDataRow["IsAliased"] is DBNull) ? null : (Boolean?)schemaDataRow["IsAliased"];
tableField.IsExpression = (schemaDataRow["IsExpression"] is DBNull) ? null : (Boolean?)schemaDataRow["IsExpression"];
tableField.IsIdentity = (schemaDataRow["IsIdentity"] is DBNull) ? null : (Boolean?)schemaDataRow["IsIdentity"];
tableField.IsAutoIncrement = (schemaDataRow["IsAutoIncrement"] is DBNull) ? null : (Boolean?)schemaDataRow["IsAutoIncrement"];
tableField.IsRowVersion = (schemaDataRow["IsRowVersion"] is DBNull) ? null : (Boolean?)schemaDataRow["IsRowVersion"];
tableField.IsHidden = (schemaDataRow["IsHidden"] is DBNull) ? null : (Boolean?)schemaDataRow["IsHidden"];
tableField.IsLong = (schemaDataRow["IsLong"] is DBNull) ? null : (Boolean?)schemaDataRow["IsLong"];
tableField.IsReadOnly = (schemaDataRow["IsReadOnly"] is DBNull) ? null : (Boolean?)schemaDataRow["IsReadOnly"];
tableField.ProviderSpecificDataType = (schemaDataRow["ProviderSpecificDataType"] is DBNull) ? null : (Type)schemaDataRow["ProviderSpecificDataType"];
tableField.DataTypeName = (schemaDataRow["DataTypeName"] is DBNull) ? null : (String)schemaDataRow["DataTypeName"];
tableField.XmlSchemaCollectionDatabase = (schemaDataRow["XmlSchemaCollectionDatabase"] is DBNull) ? null : (String)schemaDataRow["XmlSchemaCollectionDatabase"];
tableField.XmlSchemaCollectionOwningSchema = (schemaDataRow["XmlSchemaCollectionOwningSchema"] is DBNull) ? null : (String)schemaDataRow["XmlSchemaCollectionOwningSchema"];
tableField.XmlSchemaCollectionName = (schemaDataRow["XmlSchemaCollectionName"] is DBNull) ? null : (String)schemaDataRow["XmlSchemaCollectionName"];
tableField.UdtAssemblyQualifiedName = (schemaDataRow["UdtAssemblyQualifiedName"] is DBNull) ? null : (String)schemaDataRow["UdtAssemblyQualifiedName"];
tableField.NonVersionedProviderType = (schemaDataRow["NonVersionedProviderType"] is DBNull) ? null : (Int32?)schemaDataRow["NonVersionedProviderType"];
}
/// <summary>
/// ����ṹ��
/// </summary>
/// <param name="baseTable">Ҫ����Table/View</param>
/// <param name="schemaDataTable">�����ݿ��л�õĽṹ��</param>
private void FillSchemaTable(BaseTable baseTable, DataTable schemaDataTable)
{
baseTable.Fields.Clear();
foreach (DataRow dr in schemaDataTable.Rows)
{
TableField tableField = new TableField();
FillTableSchemaField(tableField, dr);
baseTable.AddField(tableField);
}
if (baseTable is View)
{
(baseTable as View).CreateCmdText = GetObjectCreateText(baseTable.Name);
}
}
public bool RemoveField(TableField Field)
{
return(this.fields.Remove(Field));
}
public bool RemoveField(TableField Field)
{
return this.fields.Remove(Field);
}
public bool AddField(TableField Field)
{
foreach (TableField field in this.fields)
{
if (field.ColumnName.ToUpper().Trim() == Field.ColumnName.ToUpper().Trim())
{
return false;
}
}
this.fields.Add(Field);
return true;
}
