/// <summary>
/// Set the value for the specified column
/// </summary>
/// <param name="column">LaytonDataColumn to identify the column in question</param>
/// <param name="value"></param>
public void SetValue(LaytonDataColumn column, object value)
{
// Try and find the column in the dataset
int index = _parentSet.FindColumn(column);
if (index != -1)
{
_values[index] = value;
}
}
/// <summary>
/// return the the value for the specified column
/// </summary>
/// <param name="column">LaytonDataColumn to identify the column in question</param>
public object GetValueTag(LaytonDataColumn column)
{
// Try and find the column in the dataset
int index = _parentSet.FindColumn(column);
if (index != -1)
{
return(GetValueTag(index));
}
return("");
}
/// <summary>
/// This function is called to increment a value held in this row at the specified column position
/// If the value is not an integer then this function will fail and will return 0.
/// </summary>
/// <param name="column"></param>
/// <returns></returns>
public int IncrementValue(LaytonDataColumn column)
{
// Try and find the column in the dataset
int index = _parentSet.FindColumn(column);
if (index != -1)
{
return(IncrementValue(index));
}
return(0);
}
/// <summary>
/// Find a column in the collection and return it's index
/// </summary>
/// <param name="column">The LaytonDataColumn object to find</param>
/// <returns>index of the column, -1 if not found</returns>
public int FindColumn(LaytonDataColumn theColumn)
{
for (int isub = 0; isub < _listColumns.Count; isub++)
{
if (_listColumns[isub].Key == theColumn.Key)
{
return(isub);
}
}
return(-1);
}
/// <summary>
/// Find a column in the collection given it's key and return it
/// </summary>
/// <param name="key">The key to look for</param>
/// <returns>The column if found, null otherwise</returns>
public LaytonDataColumn FindColumn(string key)
{
LaytonDataColumn returnColumn = null;
foreach (LaytonDataColumn column in _listColumns)
{
if (column.Key == key)
{
returnColumn = column;
break;
}
}
return(returnColumn);
}
/// <summary>
/// Primary constructor
/// </summary>
/// <param name="parentSet">Parent DataSet</param>
/// <param name="key">Unique key for this row</param>
public LaytonDataRow(LaytonDataSet parentSet, string key)
{
_parentSet = parentSet;
_key = key;
// Allocate and initialize the values list as we know how many columns we have
_values = new List <object>(parentSet.ColumnCount());
_valuesTags = new List <object>(parentSet.ColumnCount());
//
for (int isub = 0; isub < parentSet.ColumnCount(); isub++)
{
LaytonDataColumn column = _parentSet.Columns[isub];
if (column.DataType == typeof(string) || column.DataType == typeof(DateTime))
{
_values.Add("");
}
else
{
_values.Add(0);
}
_valuesTags.Add(0);
}
}
/// <summary>
/// Add a new data column to the dataset
/// </summary>
/// <param name="newColumn"></param>
public void AddColumn(LaytonDataColumn newColumn)
{
_listColumns.Add(newColumn);
return;
}
