protected string GetUnderlyingObjectText(object rowObject, OLVColumn column)
{
if (rowObject == null || column == null)
{
return(null);
}
// This code works solely because we do not use aspect getters.
var cellValue = column.GetAspectByName(rowObject);
var cellInfo = rowObject.GetType().GetField(column.AspectName);
if (cellInfo.FieldType == typeof(string))
{
return(cellInfo.GetValue(rowObject) as string);
}
if (cellInfo.GetCustomAttribute(typeof(StoragePresenceAttribute), false) == null)
{
return(null);
}
var result = (cellInfo.GetValue(rowObject) as Array).Cast <object>().ToArray();
return(@"[ " + String.Join(", ", result) + @" ]");
}
/// <summary>
/// Generate aspect getters and putters for any columns that are missing them (and for which we have
/// enough information to actually generate a getter)
/// </summary>
protected virtual void CreateMissingAspectGettersAndPutters()
{
foreach (OLVColumn x in this.ListView.AllColumns)
{
OLVColumn column = x; // stack based variable accessible from closures
if (column.AspectGetter == null && !String.IsNullOrEmpty(column.AspectName))
{
column.AspectGetter = delegate(object row)
{
// In most cases, rows will be DataRowView objects
DataRowView drv = row as DataRowView;
if (drv == null)
{
return(column.GetAspectByName(row));
}
return((drv.Row.RowState == DataRowState.Detached) ? null : drv[column.AspectName]);
};
}
if (column.IsEditable && column.AspectPutter == null && !String.IsNullOrEmpty(column.AspectName))
{
column.AspectPutter = delegate(object row, object newValue)
{
// In most cases, rows will be DataRowView objects
DataRowView drv = row as DataRowView;
if (drv == null)
{
column.PutAspectByName(row, newValue);
}
else
{
if (drv.Row.RowState != DataRowState.Detached)
{
drv[column.AspectName] = newValue;
}
}
};
}
}
}
/// <summary>
/// Generate aspect getters and putters for any columns that are missing them (and for which we have
/// enough information to actually generate a getter)
/// </summary>
protected virtual void CreateMissingAspectGettersAndPutters()
{
for (int i = 0; i < this.Columns.Count; i++)
{
OLVColumn column = this.GetColumn(i);
if (column.AspectGetter == null && !String.IsNullOrEmpty(column.AspectName))
{
column.AspectGetter = delegate(object row) {
// In most cases, rows will be DataRowView objects
DataRowView drv = row as DataRowView;
if (drv != null)
{
return(drv[column.AspectName]);
}
else
{
return(column.GetAspectByName(row));
}
};
}
if (column.IsEditable && column.AspectPutter == null && !String.IsNullOrEmpty(column.AspectName))
{
column.AspectPutter = delegate(object row, object newValue) {
// In most cases, rows will be DataRowView objects
DataRowView drv = row as DataRowView;
if (drv != null)
{
drv[column.AspectName] = newValue;
}
else
{
column.PutAspectByName(row, newValue);
}
};
}
}
}
protected string GetUnderlyingObjectText(object rowObject, OLVColumn column)
{
if (rowObject == null || column == null)
return null;
// This code works solely because we do not use aspect getters.
var cellValue = column.GetAspectByName(rowObject);
var cellInfo = rowObject.GetType().GetField(column.AspectName);
if (cellInfo.FieldType == typeof(string))
return cellInfo.GetValue(rowObject) as string;
if (cellInfo.GetCustomAttribute(typeof(StoragePresenceAttribute), false) == null)
return null;
var result = (cellInfo.GetValue(rowObject) as Array).Cast<object>().ToArray();
return @"[ " + String.Join(", ", result) + @" ]";
}
