Hi,
I have a grouping grid which occasionally raises an object reference not set exception and also occasioanly fails to draw the grid.
I call a method that sets up the datasource and manually defines the columns to show based on parameters passed in.
This a snapshot of the code:
grid.SuspendLayout();
grid.DataSource = dataSource;
grid.TableDescriptor.Columns.Clear();
grid.TableDescriptor.VisibleColumns.Clear();
grid.TableDescriptor.GroupedColumns.Clear();
grid.TableDescriptor.SortedColumns.Clear();
CreateDisplayColumns();
CreateGroupingColumns();
HideGroupingColumns();
AddSortByColumn();
grid.ResumeLayout();
CreateDisplayColumns does the following:
It creates new GridColumnDescriptors and adds them to grid.TableDescriptor.Columns and grid.TableDescriptor.VisibleColumns for the columns the user wants to see.
CreateGroupingColumns:
Adds any required grouping cols to grid.TableDescriptor.GroupedColumns
HideGroupingColumns:
Simply sets colwidth to 0 for any grouping cols - this looks nicer
AddSortByColumn:
Adds a single sort by col to grid.TableDescriptor.SortedColumns if required.
Is this the best approach for configuring the grid?
Is there a better way in terms of performance?
Would could be causing null reference exception.
Thanks a lot
Jason
PS
I''ve attached exception msg
erortext_8085.zip
