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.