internal static IEnumerable <Parameter> GetControlParameters(Control control, IDictionary <string, MetaColumn> nameColumnMapping)
{
IControlParameterTarget target = null;
target = DynamicDataManager.GetControlParameterTarget(control);
Debug.Assert(target != null);
foreach (var entry in nameColumnMapping)
{
string parameterName = entry.Key;
MetaColumn column = entry.Value;
ControlParameter controlParameter = new ControlParameter()
{
Name = parameterName,
ControlID = control.UniqueID
};
if (target != null)
{
// this means the relationship consists of more than one key and we need to expand the property name
controlParameter.PropertyName = target.GetPropertyNameExpression(column.Name);
}
DataSourceUtil.SetParameterTypeCodeAndDbType(controlParameter, column);
yield return(controlParameter);
}
}
private IEnumerable <Parameter> GetPropertyControlWhereParameters(Control control,
IControlParameterTarget paramTarget, MetaColumn column)
{
ControlParameter controlParameter = new ControlParameter()
{
Name = column.Name,
ControlID = control.UniqueID,
PropertyName = paramTarget.GetPropertyNameExpression(column.Name)
};
DataSourceUtil.SetParameterTypeCodeAndDbType(controlParameter, column);
yield return(controlParameter);
}
private IEnumerable <Parameter> GetPrimaryKeyControlWhereParameters(Control control,
IControlParameterTarget paramTarget)
{
MetaTable parentTable = paramTarget.Table;
if (parentTable != null)
{
// For each PK column in the table, we need to create a ControlParameter
foreach (var keyColumn in parentTable.PrimaryKeyColumns)
{
var controlParameter = new ControlParameter()
{
Name = keyColumn.Name,
ControlID = control.UniqueID,
PropertyName = paramTarget.GetPropertyNameExpression(keyColumn.Name)
};
DataSourceUtil.SetParameterTypeCodeAndDbType(controlParameter, keyColumn);
yield return(controlParameter);
}
}
}
private IEnumerable <Parameter> GetForeignKeyControlWhereParameters(Control control,
IControlParameterTarget paramTarget, MetaForeignKeyColumn column)
{
MetaTable parentTable = paramTarget.Table;
if (parentTable != null)
{
string namePrefix = String.Empty;
// Make sure the data types match
if (column.ColumnType != parentTable.EntityType)
{
throw new Exception(String.Format(CultureInfo.CurrentCulture,
DynamicDataResources.DynamicControlParameter_DynamicDataSourceColumnNotCompatibleWithTable,
column.DisplayName, parentTable.Name));
}
// For each underlying FK, we need to create a ControlParameter
Debug.Assert(column.ForeignKeyNames.Count == parentTable.PrimaryKeyColumns.Count);
int index = 0;
foreach (var fkName in column.ForeignKeyNames)
{
MetaColumn parentTablePKColumn = parentTable.PrimaryKeyColumns[index++];
var controlParameter = new ControlParameter()
{
Name = fkName,
ControlID = control.UniqueID,
PropertyName = paramTarget.GetPropertyNameExpression(parentTablePKColumn.Name)
};
DataSourceUtil.SetParameterTypeCodeAndDbType(controlParameter, parentTablePKColumn);
yield return(controlParameter);
}
}
}
