Thank you Cathi, you are always giving me excellent help.


>Ahmad,
>
>Based on what you are saying you need to do, I would say that your textboxes are using a different CurrencyManager than the DataGrid. Wouldn't you want all the controls bound to the same CurrencyManager? That way when you move the position, all the controls are updated.
>
>>Do you see any logical mistakes in the steps I am doing?
>>
>>
>>>Ahmad,
>>>
>>>To get the number of rows in the DataGrid, just use the Count property of the CurrencyManager for the DataGrid.
>>>
>>>>Cathi,
>>>>
>>>>What you said is exactly what I am doing.
>>>>In addition to that, I had to change the datagrid.CurrentRowIndex to point to the new added row, otherwise if I didn't do this the textboxes will display the current row information not the new one & for that after changing the CurrentRowIndex I disable the datagrid to not allow the user to click on there and miss the data, but after updating the DA I enable it again.
>>>>By the way the problem happen only if I clicked on the datagrid after the above procedures !!.
>>>>Is there a way to count the all the rows in the datagrid not the displayed ones ?
>>>>
>>>>
>>>>
>>>>>Ahmad,
>>>>>
>>>>>If the textboxes are bound to the child table, then add a new row to the empty child table before allowing the user to enter information to the controls.
>>>>>
>>>>>>I don't use the datagrid directly, under the datagrid in the window form I have some textboxs binded to the datasource/datarelation, all the data changes doen in these textboxs. and after updating the DataAdapter the datagrid gets updated.
>>>>>>
>>>>>>That's how I'm doing it.
>>>>>>
>>>>>>
>>>>>>>Ahmad,
>>>>>>>
>>>>>>>Try adding a new row to your child datarelation without using the datagrid and make sure it updates as expected.
>>>>>>>
>>>>>>>>Hi Cathi,
>>>>>>>>
>>>>>>>>Sorry for the dealy, it's the situation here as you know...
>>>>>>>>
>>>>>>>>Well I am not using filter, I am using a DataRelation, and mostly I face this problem if the child table has no data to be displayed in the datagrid then when I add data to it & try to update the DA I got this error, some times if the child table has a data I don't see the error.
>>>>>>>>
>>>>>>>>I already tryed to set the .CurrentRowIndex, but no effect.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>Ahmad,
>>>>>>>>>
>>>>>>>>>By chance are you using a filter? If so, then right before you change your filter, try setting the DataGrid.CurrentRowIndex to zero so it will not be outside the limits of the grid after the filter.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>Dear All,
>>>>>>>>>>
>>>>>>>>>>I am having a strange error:
>>>>>>>>>>((An unhandled exception has occurred in your application. if you click
>>>>>>>>>>continue, the application will ignore this error and attempt to continue
>>>>>>>>>>if you click quit. the application will be shut down immediately.
>>>>>>>>>>
>>>>>>>>>>Index was outside the bounds of the array.))
>>>>>>>>>>
>>>>>>>>>>This error fires, when I add a new row to my data grid.
>>>>>>>>>>
>>>>>>>>>>Any idea what could be the problem?
>>>>>>>>>>
>>>>>>>>>>Thanks in advance.