private void header_VisibleChanged(object sender, EventArgs e)
{
ExchangeColumnHeader exchangeColumnHeader = (ExchangeColumnHeader)sender;
ExTraceGlobals.ProgramFlowTracer.TraceDebug <ObjectPickerForm, string, bool>(0L, "-->ObjectPickerForm.header_VisibleChanged:{0}. Column name = {1}, Column visible = {2}).", this, exchangeColumnHeader.Name, exchangeColumnHeader.Visible);
if (exchangeColumnHeader.Visible && !this.resultsDataTable.Columns.Contains(exchangeColumnHeader.Name) && this.dataColumnDictionary.ContainsKey(exchangeColumnHeader.Name))
{
this.resultsDataTable.Columns.Add(this.dataColumnDictionary[exchangeColumnHeader.Name]);
ExTraceGlobals.DataFlowTracer.Information(0L, "*--ObjectPickerForm.header_VisibleChanged:{0}. Data column {1} is added, column type:{2}, column expression:{3}.", new object[]
{
this,
this.dataColumnDictionary[exchangeColumnHeader.Name].ColumnName,
this.dataColumnDictionary[exchangeColumnHeader.Name].DataType,
this.dataColumnDictionary[exchangeColumnHeader.Name].Expression
});
}
if (!exchangeColumnHeader.Visible && (string.IsNullOrEmpty(base.ResultListView.SortProperty) || base.ResultListView.SortProperty != exchangeColumnHeader.Name) && this.resultsDataTable.Columns.Contains(exchangeColumnHeader.Name))
{
DataColumn column = this.resultsDataTable.Columns[exchangeColumnHeader.Name];
if (!ObjectPicker.GetIsRequiredDataColumnFlag(column))
{
this.resultsDataTable.Columns.Remove(exchangeColumnHeader.Name);
ExTraceGlobals.DataFlowTracer.Information <ObjectPickerForm, string>(0L, "*--ObjectPickerForm.header_VisibleChanged:{0}. Data column {1} is removed.", this, exchangeColumnHeader.Name);
}
}
ExTraceGlobals.ProgramFlowTracer.TraceDebug <ObjectPickerForm>(0L, "<--ObjectPickerForm.header_VisibleChanged:{0}.", this);
}
private static DataTable RemoveNonRequiredColumns(DataTable table)
{
for (int i = table.Columns.Count - 1; i >= 0; i--)
{
DataColumn column = table.Columns[i];
if (!ObjectPicker.GetIsRequiredDataColumnFlag(column))
{
table.Columns.Remove(column);
}
}
return(table);
}
internal static void SetIsRequiredDataColumnFlag(DataColumn column, bool isRequiredDataColumn)
{
if (column == null)
{
throw new ArgumentNullException("column");
}
if (ObjectPicker.GetIsRequiredDataColumnFlag(column) != isRequiredDataColumn)
{
if (isRequiredDataColumn)
{
column.ExtendedProperties.Add(ObjectPicker.RequiredDataColumnFlag, null);
return;
}
column.ExtendedProperties.Remove(ObjectPicker.RequiredDataColumnFlag);
}
}
