Hi,

I found this sample and got it working in one of my projects. However, when i try to paste in new rows at the bottom of my grid that allows new rows it just throws an error saying there are more rows to paste then exist in the grid. Is there a property I can set that will allow paste in the excel rows as new rows in the grid? If not can you think of a way around this problem?

Thanks a lot,

Jesse

Ramsey,

I have put together a sample that shows an approach that you can take to add rows to the WinGrid when pasting data from excel into the grid.  Please review this sample to see if this approach will meet your needs.

The relevant code is in the BeforePerformAction event:

void ultraGrid1_BeforePerformAction(object sender, BeforeUltraGridPerformActionEventArgs e)
{
    // Check if this is a paste operation
    if (e.UltraGridAction == UltraGridAction.Paste)
    {
        // the string "\r\n" is used between the rows so split the string
        // from the clipboard based on this value
        string[] split = { "\r\n" };
        string[] strings = Clipboard.GetText().Split(split, StringSplitOptions.None);
        // The rows to paste will be the number of strings in the array
        int rowsToPaste = strings.Length;
        // If the array contains an empty string at the end then this will not need a row to be created
        if (strings.Length > 0 && String.IsNullOrEmpty(strings[strings.Length - 1]))
        {                   
            rowsToPaste--;
        }
        // Determine where the index of the grid where the paste will begin
        // if there is are selected cells use that range and if there aren't any selected cells, use the active row
        int startIndex = 0;
        if (ultraGrid1.Selected.Cells.Count > 0)
        {
            ultraGrid1.Selected.Cells.Sort();
            startIndex = ultraGrid1.Selected.Cells[0].Row.Index;
        }
        else
        {
            startIndex = ultraGrid1.ActiveRow.Index;
        }
        // Calculate the rows needed and then add empty rows to the DataTable the 
        // grid is bound to
        int rowsNeeded = rowsToPaste - (ultraGrid1.Rows.Count - startIndex);
        DataTable data = (DataTable)this.ultraGrid1.DataSource;
        for (int i = 0; i < rowsNeeded; i++)
        {
            DataRow row = data.NewRow();
            data.Rows.Add(row);
        }
    }
}
 

Let me know if you have any questions with this matter.

Thanks Alan. I must be missing something because I can't seem to get past the error event to reach the BeforePerformAction event. Here is what I am doing in the error event handler:

Private Sub UltraGrid1_Error(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinGrid.ErrorEventArgs) Handles UltraGrid1.Error

If e.MultiCellOperationErrorInfo.Operation = MultiCellOperation.Paste Then

   e.Cancel = True

   e.MultiCellOperationErrorInfo.Action =

MultiCellOperationErrorInfo.ErrorAction.Continue

End If

End Sub

Ramsey,

I tested my sample with your logic in the Error event.  In C# this is:

void ultraGrid1_Error(object sender, ErrorEventArgs e)
{
    if (e.MultiCellOperationErrorInfo.Operation == MultiCellOperation.Paste)
    {
        e.Cancel = true;
        e.MultiCellOperationErrorInfo.Action = MultiCellOperationErrorInfo.ErrorAction.Continue;
    }
}

The BeforePerformAction event fires before the Error event and then only if there is an error does the Error event fire. I verified this by removing the logic to add the new rows to the data source in the BeforePerformAction when I was testing the sample.

As such if you are getting to the Error event, then I would expect the logic in the BeforePerformAction event handler may be incorrect in your application.  Do you have an example that I can test on my end?

Let me know if you have any questions with this matter.

Hmm. The BeforePerformAction event never fires. I took the sample, translated it to VB and ran the debugger with a break point on the first line in the BeforePerformAction event handler where it tests to see if the Action is a paste action. The breakpoint in the BeforePerformAction event is not hit but the error event is raised.

I also recreated the BeforePerformAction event handler with no code in it and put a breakpoint on the declaration. That breakpoint is not reached either but again the Error event handler in that module is reached.

I appreciate your help...I'm lost.

Ramsey,

If you used utility to translate the code, then it may be that the Handles keyword is missing from the event and this may need to be added.  Please verify that the Handles keyword is on the event handler.

Let me know if you have any questions with this matter.

Hello,

I have followed the steps provided and I wasn't able to reproduce the behavior with the attached sample.  Are you able to reproduce the behavior with the attached sample?  If so, what are the exact steps that you took and what is the value of e.ErrorText in the Error event?

Let me know if you have any questions with this matter.

Hi Allan,

Thank you for your response. I think Ramsey has explained but I will recap.  Take the C# sample that comes with NetAdvantage 2010.3 and add the event handler for BeforeMultiCellOperation() by double clicking the event in the propeties window for the frmCutCopyPaste form. Add a breakpoint.  Then take the code you provide above for UltraGrid1_Error and replace the code in the sample. Set a breakpoint on the first line of code.  Run the sample app and and select multiple rows.  click Copy button.  Scroll down and highlight the last row aand click the Paste button.  You will notice that you hit the breakpoint in UltraGrid1_Error() first.  If you continue through your code you will notice that you never hit the breakpoint in BeforeMultiCellOperation().  So the question is how do we get past the error in order to add rows to the grid and paste the contents of the clipboard?

Hello,

I am still working with Ramsey regarding the pasting and adding the rows.  On my end I haven't yet seen a case where the Error event was fired first.   I have seen issues with the logic for adding rows where the rows wouldn't be added and then the error event would fire after that.  Do you have any example that shows the error event firing first that I could debug with?

Let me know if you have any questions with this matter.

Sorry, I was referring to the previous thread.  I am trying to paste multiple row into a grid.  Allen had posted some sample code that would parse the clipboard and add new rows. The problem is that the Grid error event seems to be thrown before the BeforeMultiCellOperation event ( where his code resides). He created case CAS-64104-5BFMPMP to help resolve the issue.  I seem to be seeing the same thing and wondered what the resolution was.

Hi,

To what issue are you referring? There no issues described here, it's just a question. And the answer is yes. AllowMultiCellOperation allows you to copy and paste cells and/or rows in the grid. You can do this within the same grid, from one grid to another, from the grid to Excel and vice versa.