Prevent Moving To An New Cell In Datagrid If The Current Cell Is Empty

Aug 2, 2011

I have a datagrid that will be accepting data from an external measuring device via the serial port. The grid is also open to editing records as well. Part of the process of making this grid user friendly is to intercept the "enter" key and move to the next cell until there is a value in the cell. This is only for some cells, other cells can be blank. I have worked out how to intercept the "enter" key from another post on this forum. Here is the code:

[Code]...

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Datagrid New Row Cell Validation - Validate Empty Text And Indicate Error On Cell?

Jun 1, 2010

The problem is that if you never enter anything into a cell for a new row then that cell is never validated. This is a problem because I have columns that should not be null. I am doing the check in the row level validation and storing the information about which cells are empty that should not be empty. The row level validation works fine and the row level validation error indicator goes on,(red exclamation mark at the beginning of the row) but I also need a visual indicator on the individual cells that are in error.

I am thinking that setting the HasError property for the cells that are in error should cause them to display n error style (the default red border). Is there a way to this this either from XAML (perferably) or from code?Alternatively I could cause those cells to re-validate when the row editing is finished. Does anyone know how to do this?

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Prevent Moving From A Cell In Datagridview That Has No Data?

Aug 3, 2011

I am updating my last post so hopefully someone will help. I have following code that will move a cell to the next column when hitting the enter key while doing an edit. It will even check the row at the last cell to validate data is present.

However, if there is no data in a cell and I press enter, the focus moves to the next line like it normally does. I need to prevent the user from moving or clicking on any cell until the cell they are on has data in it. Here is the coe I have used[code]...

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Implement The Use Of Enter Key When Entering Data And Moving From Cell To Cell?

Feb 17, 2009

I wanted to implement the use of Enter key when entering data and moving from cell to cell. How am i going to implement that?

For example:

Text Box 1: Date: 02/02/2009
Text Box 2: Name:

then after entering the date on the text box i wanted to move to Text Box 2using only the Enter key.

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Datagrid View Current Cell Value?

Jun 14, 2010

I have two data grid view (dg1 and dg2), datagrid dg2 contains three column value is

itemcode item Price
item1 car 10
item2 Jeep 20

[code]......

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Disable Cursor Moving From Cell To Cell In Datagridview

Aug 10, 2010

Is it possible to disable cursor moving from cell to cell in datagridview?

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DataGrid "return Value Of A Cell On Current Selected Row

Aug 27, 2009

I have a datagrid called InvoiceDataGridView, I am looking to set a variable to the value found on the 3rd textcolum of the currently selected row

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WinForms - DataGrid Reset Current Cell To 0 When CheckBox Changed

Jun 13, 2011

Basically I am looking for if I click on my checkbox, it should reset my datagrid column lastseqno to 0. Is it possible?

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VS 2005 Current Cell Cannot Be Set To An Invisible Cell

Nov 16, 2009

So I've got 2 unbound datagridviews, and am providing a push/pull interface where the user can move records from one to the other.

Grid A is read-only and the selectionmode is set to FullRowSelect. Grid B has a read-only DataGridViewTextBoxCell, an editable DataGridViewComboBoxCell, and an editable DataGridViewComboBoxCell.

Because the grids have different columns, but represent the same records, my notion was to create the datagridviews with the same column structure but hiding certain columns, and then just move the DataGridViewRows back and forth between the two, which seams to work.

The problem is that if I go into column 2 or 3 in grid B, I get "Current cell cannot be set to an invisible cell".

I can select cells in column A and I'm fine. It should be noted that on grid B the hidden columns are 4-7.

I know there's a problem when the CurrentCell attribute is set to a hidden cell, but I'm clicking visible cells. I inserted a breakpoint on the CellClick event of the DGV, and again for column 1 that works fine, but on columns 2 and 3 it looks like the error is occuring before the event even gets fired.

Is something in the background setting CurrentCell to one of the hidden cells before firing the event?

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In DataGridView, Moving From One Cell To Other Cell

Mar 2, 2009

I have a datagridview and it has 8 columns as textboxcolumns. I am handling their cell validation with cellValidating event.

My question is that if cell validation fails for 3rd column of the datagridview then the focus should move from 3rd column to 1st column of the datagridview. How can i do this?

I have tried datagridview.column(0).selected = true, when validation for 3rd column fails, but this is not working. Focus still moves to the next cell. I can stop the focus to the current cell with e.cancel=true but i want it to move to the very first cell of the datagridview.

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In DataGridView, Moving From One Cell To Other Cell?

Mar 2, 2009

I have a datagridview and it has 8 columns as textboxcolumns. I am handling their cell validation with cellValidating event. My question is that if cell validation fails for 3rd column of the datagridview then the focus should move from 3rd column to 1st column of the datagridview. How can i do this?I have tried datagridview.column(0).selected = true, when validation for 3rd column fails, but this is not working. Focus still moves to the next cell. I can stop the focus to the current cell with e.cancel=true but i want it to move to the very first cell of the datagridview.

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Move DataGrid Cell To Another Datagrid's Cell?

Aug 15, 2011

I have searched alot but can only find info on moving entire rows bound between 2 datagrids, but noting on moving single cells. I have some code below that works ok from DGV to textboxes but not from DGV1 to DGV2.

Dim i As Integer
i = DataGridView1.CurrentRow.Index
Form3.DataGridView1.Item(1, i).Value = DataGridView1.Item(0, i).Value

[code].....

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Copy The Value Of Cell A6 Into Cell A5 Based On A Change In Cell A4?

May 16, 2009

I am attempting to copy the value of the TimeStamp in cell A6 which has the NOW() formula into cell A5 Based on a change in Cell A4. The catch is I don't want it to update every time the sheet is recalculated due to updating links in other cells on the sheet. ONLY when Cell A4 Changes. What do I do?

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Get A Cell Value From A Datagrid Cell?

Oct 30, 2009

I am trying to get the cell value from a particular cell in a DataGridView table but am having a little problem with the syntax.My research suggests that I need to use the command:

DataGridView.Rows.Item("Index of Row").Cells.Item("Name of Column").CellValue
but when I create the command:
x = DataGridView1.Rows.Item(0).Cells.Item("Dec").CellValue

[code].....

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Moving Character To Next Cell

Aug 15, 2011

I am building an excel address parser. [Code] Column B is my streetNumber and What I need it to do is anytime it finds a letter attached to the number it needs to move it from column b to column C. So if it ended up on B435 how do I get that value of "A" to be on C435 [Code]

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Prevent A Datagridview Cell From Getting Focus?

Jan 3, 2010

vs 2005 sql 2005 developer/I have a datagridview with 4 columns .I want the user to be able to use the arrow keys to move through the rows and just two of the columns.I want the other two rows to behave like a label that cannot get the focus. Nor be selected.I have been messing arround with the "cell enter" event but the language wont let me set the selected cell from within that routine.

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?moving To Next Column In A Datagridview Cell?

Oct 14, 2009

i have problem in moving to next column in a datagridview cell when enter key is pressed.It is moving to next row.

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Moving To The Next Cell Down In The Datagridview Control?

Dec 8, 2009

I have a datagrid control on my form that receives data from a device on the COM port. I strip out the data I need and put it into the currently selected cell. When I load the grid, I find the first empty cell and set the focus so each load presents the user with an empty cell to start receiving data. Once I get the measurement, I need to move to the next cell down (like hitting enter in the grid). This will allow the user to do measurements with the external device without having to move to the next cell.

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VS 2010 Check DGV Cell For Null Or Empty Value?

Feb 29, 2012

I have the following code that checks if the value in a cell contains a nummeric value.

Private Sub dgvOrderRegel_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgvOrderRegel.CellValidating
Select Case e.ColumnIndex
Case 4 'Aantal
If Not IsNumeric(e.FormattedValue) Then

[Code]...

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Get Value String From Current Cell?

Jan 10, 2009

I am working on my datagridview to get the current cell value from the column. I have three columns which I want to get the cell value from the second column.[code]...

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ASP.net (VB) Prevent Copy And Paste From Validation Cell In (Excel.Application)?

Jan 16, 2012

How should I generate an Excel File with this rule?Should not be able to paste an invalid value to a validated cell from other worksheet.

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Asp.net - Filehelpers ExcelStorage.ExtractRecords Fails When First Cell Is Empty

Sep 22, 2009

When the first cell of an excel sheet to import using ExcelStorage.ExtractRecords is empty, the process fail. Ie. If the data starts at col 1, row 2, if the cell (2,1) has an empty value, the method fails.

how to work-around this? I've tried adding a FieldNullValue attribute to the mapping class with no luck.

Here is a sample project that show the code with problems

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Set Background Color Of Datalists Empty Item Cell?

Apr 28, 2009

How can i set the background color for datalist empty items

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DataGridView - How To Get Name Of Column For Current Cell

Aug 12, 2009

I want to display a contextmenu if only the cursor is in desired column. The grid should not appear in other columns.

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VS 2008 Datagridview Current Cell

Aug 24, 2010

i have a datagridview and i search in it with textbox but i want to select the cell that contain the word i'm searching for

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VS 2008 DataGridView Cell Status - Check Where Column 0 And Row 0 Has Value Or Empty

Jan 22, 2010

[Code]....

IF cursor leaves column 0 and row 0 then it displays msgbox but I want to check where column 0 and row 0 has value or empty In case of empty cell it must display msg as
msgbox("this is empty cell")

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DB/Reporting :: Cant Set Current Cell On Form Load

Jul 17, 2009

I am using this code at the last line of my form load. I want the position 5,5 to have the cursor set at it. It works when then datagrid is already open:[code]However, when I use it on the form load, you can see that it was selected on the datagrid, but the cursor is set at textbox1...which happens to have the first tab order on the form, even though I have acceptstabs off. Can anyone tell me why this would happen? Basically, it is setting the cursor at the cell I want, but after the form loads, it jumps to textbox1 and highlights the text.

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Use The Tab Key To Exit And Retain Current Cell In DataGridView?

Jan 26, 2012

In my form there is a DataGridView, the user select information in the DataGridView then there are text boxes that needs to be filed in. So this is what needs to happens if the focus is on the DataGridView when the user hits the Tab key it moves the focus to first text box. Then once the user hits the last tab box it returns focus back to the DataGridView but to next cell. Initially figured this would not be a problem and did this code;

Dim PreviousCell As DataGridViewCell
Private Sub DataGridView1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles DataGridView1.KeyDown

[code]....

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Apply For Loop On Grid View / Check Empty Cell Value Then Show Msg

Jan 3, 2012

How to apply for loop on grid view and to check the empty cell value then show a message...
Dim cnt As New DataSet1.LibraryDataTable
For i As Integer = 0 To cnt.Rows.Count - 1
For j As Integer = 0 To 5
If GridView1.Rows(i).Cells(j).Text = Nothing Then
GoTo e
ElseIf GridView1.Rows(i).Cells(j).ID Then
GoTo a
End If
Next
Next
e:
lblmsg.Text = "he is not return a book"
a:
lblmsg.Text = "he is return all book"

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DGV Edit Mode, After Press ENTER To Move The Active Cell Into The Desired Cell?

Nov 29, 2011

in VB.NET DGVedit mode, after press ENTER to move the active cell into the desired cell, notdirectly move to the next line, how is it?

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