C# Handle Data Error
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resources Windows Server 2012 error handling in c# best practices resources Programs MSDN subscriptions Overview Benefits Administrators error handling c# mvc Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community to replace this default dialog please handle the dataerror event Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. The content datagridview default error dialog you requested has been removed. You’ll be auto redirected in 1 second. System.Windows.Forms DataGridView Class DataGridView Events DataGridView Events DataError Event DataError Event DataError Event AllowUserToAddRowsChanged Event AllowUserToDeleteRowsChanged Event AllowUserToOrderColumnsChanged Event AllowUserToResizeColumnsChanged Event AllowUserToResizeRowsChanged Event
Datagridview Dataerror Formatting Display
AlternatingRowsDefaultCellStyleChanged Event AutoGenerateColumnsChanged Event AutoSizeColumnModeChanged Event AutoSizeColumnsModeChanged Event AutoSizeRowsModeChanged Event BackColorChanged Event BackgroundColorChanged Event BackgroundImageChanged Event BackgroundImageLayoutChanged Event BorderStyleChanged Event CancelRowEdit Event CellBeginEdit Event CellBorderStyleChanged Event CellClick Event CellContentClick Event CellContentDoubleClick Event CellContextMenuStripChanged Event CellContextMenuStripNeeded Event CellDoubleClick Event CellEndEdit Event CellEnter Event CellErrorTextChanged Event CellErrorTextNeeded Event CellFormatting Event CellLeave Event CellMouseClick Event CellMouseDoubleClick Event CellMouseDown Event CellMouseEnter Event CellMouseLeave Event CellMouseMove Event CellMouseUp Event CellPainting Event CellParsing Event CellStateChanged Event CellStyleChanged Event CellStyleContentChanged Event CellToolTipTextChanged Event CellToolTipTextNeeded Event CellValidated Event CellValidating Event CellValueChanged Event CellValueNeeded Event CellValuePushed Event ColumnAdded Event ColumnContextMenuStripChanged Event ColumnDataPropertyNameChanged Event ColumnDefaultCellStyleChanged Event ColumnDisplayIndexChanged Event ColumnDividerDoubleClick Event ColumnDividerWidthChanged Event ColumnHeaderCellChanged Event ColumnHeaderMouse
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Datagridview Default Error Dialog Datagridviewcomboboxcell Value Is Not Valid
the company Business Learn more about hiring developers or posting ads with us Stack datagridviewdataerrorcontexts Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of datagridviewcomboboxcell value is not valid. in c# 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up DataGridView DataError Event Preserve invalid row up vote 3 down vote favorite I am working on a Winforms https://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.dataerror(v=vs.110).aspx app that displays a DataGridView, bound to some database table. It allows inserting fresh entries in to it, and does some data validation. When a required column is left blank, or one of the unique constraints is violated, the DataError event calls this function: protected void _data_error(object sender, DataGridViewDataErrorEventArgs e) { MessageBox.Show(this,e.Exception.Message,"Error"); e.ThrowException = false; e.Cancel = false; } When the popup is closed, the new row that was being edited is http://stackoverflow.com/questions/13495900/datagridview-dataerror-event-preserve-invalid-row removed. When this is done to a row that has already been saved (an update operation) the row loses its changes and loses focus. I assume this means I need to signal the application to keep the row editable, but I do not know how to do that. Paradoxically, if I replace the event handler with a throw(e.Exception) the exception gets thrown to the wind and is picked up by the uncaught exception handler, but the new row is preserved after that window closes. How can I preserve the new row on a DataError event? Edit: My next thought was to save the row and add it to the DataGridView's data source after the MessageBox pops up. That does not work because adding data to the data source add's it as a committed row which throws an exception because of the invalid data vs keeping the data as an editable row so that validation doesn't happen. c# winforms datagridview share|improve this question edited Nov 21 '12 at 17:20 asked Nov 21 '12 at 14:54 Chris 1,71431639 add a comment| 2 Answers 2 active oldest votes up vote 3 down vote accepted Took me a few days but here is how I fixed it, but I am still open for a better way. In the DataGrid
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site http://stackoverflow.com/questions/17697050/c-sharp-get-the-cell-text-value-if-dataerror-is-triggered About Us Learn more about Stack Overflow the company Business Learn more about http://stackoverflow.com/questions/16313733/how-to-handle-an-error-from-datagridview hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up c# Get the cell text error handling value if DataError is triggered up vote 6 down vote favorite I have a DataGridView and I populate it dynamically from my database via the following code DataGridViewTextBoxColumn colID = new DataGridViewTextBoxColumn(); colID.HeaderText = "id"; colID.DataPropertyName = "id"; colID.ReadOnly = true; colID.Visible = false; dtgvLoadEx.Columns.Add(colID); DataGridViewTextBoxColumn colLoadExpiryDate = new DataGridViewTextBoxColumn(); //CalendarColumn colLoadExpiryDate = new CalendarColumn(); colLoadExpiryDate.HeaderText = "LoadExpiryDate(mm/dd/yy)"; colLoadExpiryDate.Width = 158; colLoadExpiryDate.DataPropertyName = "LoadExpiryDate"; colLoadExpiryDate.ReadOnly datagridview default error = false; colLoadExpiryDate.MaxInputLength = 10; dtgvLoadEx.Columns.Add(colLoadExpiryDate); dtgvLoadEx.DataSource = data(); //Return data table from my Database As you can see I have a Date column. When I attempt to edit a cell of that column and type an invalid format, the DataError event will triggered. Now I just want to get the error text from private void dtgvLoadEx_DataError(object sender, DataGridViewDataErrorEventArgs e) { } or any other process in order to get the error text. c# datagridview share|improve this question edited Jul 17 '13 at 10:23 MoonKnight 13k1783156 asked Jul 17 '13 at 10:14 user2530833 425417 How to you raise an error when invalid text is entered? –MoonKnight Jul 17 '13 at 10:16 2 for example I insert in to that column this "2023123" it will trigger the _DataError Event. Now i Just want to get that "2023123" –user2530833 Jul 17 '13 at 10:17 What sort of exception is in e.Exception? –sq33G Jul 17 '13 at 10:29 add a comment| 3 Answers 3 active oldest votes up vote 3 down vote accepted Ok guys I Already Solved the Problem. Here I'm gonna share it private void dtgvLoadEx_DataError(object sender, DataGridViewDataErrorEventArgs e) { strin
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to handle an error from DataGridView up vote 0 down vote favorite I am receiving an exception from dataGridView when I load a ComboBox's Column with class objects with overloaded ToString() methods. I have tried everything that I can find on the internet to prevent this error, and I had another open question on SO trying to sort this one out also, however I was unsuccessful. The most straightforward answer I received, was to handle the error message, and prevent it from loading, to this extent I have googled around, and created this method that I believe should resolve the issue. private void DataGridView1_DataError(object sender, DataGridViewDataErrorEventArgs anError) { anError.Cancel = true; } Its a bit crude, but I believe it should work, however when I add a breakpoint, the error still persists, and never breaks into this function. I have never done anything with error handling before, and it is very likely I am missing something. All assistance appreciated. c# .net error-handling share|improve this question edited May 1 '13 at 6:32 John Willemse 4,56271938 asked May 1 '13 at 6:28 Matt Osborne 23113 codeproject.com/Articles/18814/… will help you –Ram Singh May 1 '13 at 7:05 You dont need to do anything, leave that even handle empty and it will ignore the error. I've