public void OnColumnChanged(object sender, DataColumnChangeEventArgs e)
{
if (TableUtil.InConstraint(e.Row.Table))
{
RuleColumn column = TableUtil.GetRuleColumn(e.Column);
if (column != null && column.HasConstraints)
{
string message = "";
if (!DataUtil.CheckConstraints(e.Row[column.ColumnName], column, ref message))
{
if (message != null && !message.Equals(""))
{
throw new RuleColumnConstraintException(this, e.Row, column, message);
}
//SendRuleExceptionEvent(sender, new RuleColumnConstraintException(this, e.Row, column, message));
else
{
throw new RuleColumnConstraintException(this, e.Row, column);
}
//SendRuleExceptionEvent(sender, new RuleColumnConstraintException(this, e.Row, column));
}
}
}
}
public override string GetTranData()
{
DataTable table = this.Command as DataTable;
if (table != null)
{
DataTable updatetable = table.GetChanges();
if (updatetable != null && updatetable.Rows.Count > 0)
{
DataColumnCollection columns = table.Columns;
DataRow row;
RuleColumn rcolumn;
Object oldvalue, newvalue;
bool haschange;
bool hasPK = TableUtil.BoolProperty(updatetable, "HasPK");
StringBuilder sb = new StringBuilder(String.Format("<item type=\"table\" dr=\"{0}\" ds=\"{1}\">", DS, TableUtil.StrProperty(table, "DataSource")));
string command = TableUtil.StrProperty(table, "Command");
if (!command.Equals(""))
{
sb.Append(string.Format("<command type=\"sql\">{0}</command>", command));
}
sb.Append("<rows>");
int count = updatetable.Rows.Count;
for (int i = 0; i < count; i++)
{
row = updatetable.Rows[i];
switch (row.RowState)
{
case DataRowState.Added:
sb.Append("<row state=\"ins\">");
foreach (DataColumn column in columns)
{
newvalue = row[column.ColumnName, DataRowVersion.Current];
if (newvalue != null)
{
sb.Append(String.Format("<field name=\"{0}\">", column.ColumnName));
sb.Append(DataUtil.FieldValueToString(newvalue, TableUtil.GetRuleColumn(column)));
sb.Append("</field>");
}
}
sb.Append("</row>");
break;
case DataRowState.Modified:
row.EndEdit();
sb.Append("<row state=\"upd\">");
foreach (DataColumn column in columns)
{
rcolumn = TableUtil.GetRuleColumn(column);
oldvalue = row[column.ColumnName, DataRowVersion.Original];
newvalue = row[column.ColumnName, DataRowVersion.Current];
haschange = !DataUtil.CheckEquals(oldvalue, newvalue);
if (hasPK)
{
if (haschange || TableUtil.BoolProperty(column, "PK"))
{
sb.Append(String.Format("<field name=\"{0}\">", column.ColumnName));
sb.Append("<old>");
sb.Append(DataUtil.FieldValueToString(oldvalue, rcolumn));
sb.Append("</old>");
if (haschange)
{
sb.Append("<cur>");
sb.Append(DataUtil.FieldValueToString(newvalue, rcolumn));
sb.Append("</cur>");
}
sb.Append("</field>");
}
}
else
{
if (rcolumn == null || haschange || rcolumn.IsForePrimaryKey)
{
sb.Append(String.Format("<field name=\"{0}\">", column.ColumnName));
sb.Append("<old>");
sb.Append(DataUtil.FieldValueToString(oldvalue, rcolumn));
sb.Append("</old>");
if (haschange)
{
sb.Append("<cur>");
sb.Append(DataUtil.FieldValueToString(newvalue, rcolumn));
sb.Append("</cur>");
}
sb.Append("</field>");
}
}
}
sb.Append("</row>");
break;
case DataRowState.Deleted:
sb.Append("<row state=\"del\">");
foreach (DataColumn column in columns)
{
rcolumn = TableUtil.GetRuleColumn(column);
if (rcolumn == null || rcolumn.IsForePrimaryKey)
{
oldvalue = row[column.ColumnName, DataRowVersion.Original];
if (oldvalue != null)
{
sb.Append(String.Format("<field name=\"{0}\">", column.ColumnName));
sb.Append(DataUtil.FieldValueToString(oldvalue, rcolumn));
sb.Append("</field>");
}
}
}
sb.Append("</row>");
break;
}
}
sb.Append("</rows>");
sb.Append("</item>");
return(sb.ToString());
}
}
return("");
}
