When I set rowheadersvisible to true and run the program, the little arrow appears on the left of the datagridview and a cell is highlighted. (Accessible role is none.)
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I can Highlight the row in a datagridview. If I don't scroll down a few hundred rows. I will not see it highlighted. How can I automatically scroll to the highlighted row?[code]...
View 1 RepliesI want to do something with a left and right arrow press but i dont know how. (in Visual Basic Express Edition 2008)
View 14 RepliesI am trying to use m.WParam to separate the event raised by left arrow key "<-" and right arrow key "->", but somehow m.WParam always = 0. How can i separate the event raised when the user press left or right arrow key?
[code]...
i have a doubt as to how to set left key using setkeyboardstate in VB.net?
i went through other threads but still couldnt get it
I'm trying to develop macros for games. I'm currently coding with vb 2010 and I'm using the keybd_event API. It works great, I've done many working macros but I cannot find a way to send arrow strokes using this API. (Left, Right, Up, Down) I don't want to use the numpad. Here is what I've found: [Code] For some reason, nothing happens, no keystroke seems to have been sent. When I use any other ascii decimal from the ascii table, it does work but not for the arrow strokes.
View 2 RepliesI'm inserting data into excel sheets and after i fill each sheet I want to sum a column so select the data and add a formula to a cell. However when the sheet is opened the cell contains the formula as text instead of the sumation value. I tired several ways but here are a few different meathods that both end up with the same undesired result.
Code:
'Meathod 1
oSheet.Range("H2:H" & (dtEntries.Rows.Count + 2).ToString).Select()
oSheet.Range("H" & (dtEntries.Rows.Count + 2).ToString).FormulaR1C1= "=SUM(R[-" & (dtEntries.Rows.Count).ToString & "]C:R[-1]C)"
[code]....
I want to remove the highlighted part from the datagridview how to do
View 4 RepliesI have a datagridview on a form that is docked in the form. When the form loads the DGV is all selected until I click a cell or row or column. Is there a way to turn it off.?
View 15 RepliesI'm trying to write small piece of code in Visual Studio (VB.net) that will change value of a particular field of the database for all highlightetd rows. So, I'm running my form, which displays some data from the datatabse. I then highlight some rows (holding Ctrl and clicking). Next I click a button that will trigger a value change for all the highlighted rows (only). Say, I want to change the "Name" column's value for all of them.
View 1 RepliesUsing Visual Basic,change the backcolor of the upper left header cell (.rows(-1).columns(-1)) of a DataGridView? I would like to use a different color to indicate to the user that he/she can right click a row or column header to access the Context Menu Strip. Not all of my DGVs use a CMS, so I would like to highlight its availability for the specific DGV.
View 2 RepliesI have never faced this problem before, I'm working on a MDI project and I have a form with a DataGridView that uses the event CellFormatting to format the cell content, if a click on a button in the form or inside the datagridview itself to show a Msgboxit appears behind the MDI form, you must realize how frustrating should be for the user that the program does not respond because the Msgbox is behind and they don't know it.
View 4 RepliesHave this code so that when a checkbox in a column of my datagridview is checked, then the corresponding cell in column 2 (of the same row the check box is in) will turn blue with font color white.
[code]...
I'd also like to add a line so that as well as the cell going blue, the bottom border of the cell disappears, so cellborderstyle = none.
I have a DataGridView with several columns. One column is a TextBox column named "Status". This column can only show one of three values: 'Final', 'Ready', or 'No Reportable'. I want to have some code that would turn the TextBox cell into a ComboBox cell when the user left-clicks on the cell to allow the user to choose one of these three options. When the user clicks elsewhere or the cell loses focus I want the cell to change back to a TextBox cell.
Here is what I have so far, but the code throws an exception indicated below Plus, I don't think the code would remove the combobox when the cell loses focus.
Exception: "Provided cell does not belong to this DataGridView control."
Private Sub dgvCalculatedResults_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles dgvCalculatedResults.MouseDown
Dim ht As DataGridView.HitTestInfo = Me.dgvCalculatedResults.HitTest(e.X, e.Y)
[Code].....
In my DataGridView, there is a column for names of machines in the database and I want to count how many machines of each time I have. I have set aside 1 text box with 1 label for each time of machine and in the text box, I want to display how many machines of that type are in the DataGridView?For example, I have 50 records and 30 of those records use machine "80ER" while 12 use "90E" and 8 of them are "PM100". I'd like the 80ER text box to show 30, 90E text box to show 12, and PM100 text box to show 8.
View 7 RepliesI have a menu item that appears when right clicking over a datagridview. From their the user hovers over a menuitem and a list of other menu items appears, once again this repeats. Giving soemthing like this.
---------
| FOO |---------
---------| BAR |------------
---------| FOOBAR |
-----------
There is only to be an event (addressof) handled on the the 3rd tier. With that being said I need to grab the parent.name from FOOBAR and the parent.name of the said parent (grandparent).Here is where I am at:
If currentMouseRow >= 0 AndAlso currentMouseColumn <= 1 Then
dataGridView_monitorMapping.Rows(currentMouseRow).Selected = True
mainMenu.MenuItems.Add(New MenuItem("Set Monitor(s) Settings"))
[code]....
And the event handler
Public Sub updateMultiRowSettingChange(ByVal Sender As System.Object, ByVal e As System.EventArgs)
'TODO | Handle selection from right click menu.
End Sub
With a two column Datagridview, first column with a number in it, and second column with nonwrap text. When the datagridview width is less than the width of the data in the two columns, the only way I can get a horizontal scrollbar to show is with the width set for both columns. If I then try to scroll down the rows using the down arrow, the grid jumps to show only the second column. I have tried various settings for the columns - fill - fillweight - autosize etc.
I found one solution, setting the first column to frozen in the key down event and then setting it back in the key up event but the scrollbar does flicker and I am sure this is not the correct way to do this.
The user needs to scroll down the rows and be able see the first column whilst doing this and then if necessary scroll right to read any text not visible.
Is it possible to disable cursor moving from cell to cell in datagridview?
View 5 RepliesI want to detect up,down arrow keys while in edit mode of datagrid view i use the code below but it is not working?
Public Overridable Function EditingControlWantsInputKey(ByVal keyData As System.Windows.Forms.Keys, ByVal dataGridViewWantsInputKey As Boolean) As Boolean
Select Case keyData And Keys.KeyCode
[code]....
Both case arrow keys are not detected. please tell how to detect
I want to move cursor to datagridview using up and down arrow if focus in any control.
View 1 RepliesI have a Datagridview called DgvReturns. which contains two fields,
1) Yes - checkbox (boolean)and
2) Received Date - textbox (DateTime)..
What I want to do at run time is that when a user Checks the Yes checkbox Received Date is populated with the current Datetime.
In cellEndEdit event I need current cell editedFormatedvalue ( well it is done) now my question is can we get the old value of the cell in this event or have to handle some other event for this means let I have a cell in which current value is abc and when I edit it it become def now I want to get both the values in cell end edit event ( or any else ) but finally I have to perform task on cellendedit
View 1 RepliesI 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.
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.
View 13 RepliesI have a DataGridView where Cell_Validating is being done. I have a Cancel button on my form that allows the user to exit out of the DataGridView changes. The problem is that if a cell was currently flagged as in error, I cannot exit and remove columns from the DataGridView. I get the following error: Operation did not succeed because the program cannot commit or quit a cell value change. Is there a way to cancel the validation once the focus has been removed from the DataGridView? Here is my Cell_Validating
[Code]...
when I want to select all row in DGV I have to click on the place( I don't know the name of it)where it show a black arrow on the left.Can change this place from left to right.
View 2 Repliesusing visual basic 2010 DataGridView on a windows form. I have been experiencing an error with the horizontal scroll bar. when the DataGridView is outside the monitor. in other words, you have move the Windows Form half way out of the screen display area. the information in the columns that were out of view is distorted.
View 4 Replieshow can add icon to the left side of the item populated on a datagridview (just like in a listview)?
View 1 RepliesSo I found this little morpg. The game is fun but really repetitive. I would like to simplify some of the tasks in the game. I do not know how to start this project. How can I recored arrow keys and then tell the computer to enter the arrow keys? One of the objectives in the game is to run around a farm 2x and scare away any wolfs. So the commands would be "arrow key up" for 30sec and then "arrow key right" for 4 sec and repeat. I have worked with robots in real life for some time. We would fill arrays with such instructions. One of the most fun things to program! But I have no idea how to do this in VB.
View 12 RepliesI have a datagridview which is populated with information from a database. I would like it so that when I click on one of the items in the table, the information appears in the text box, or other suitable tool.
The VB output is an EPG (electronic program guide), that has a list of programs and the channels/time etc. So when you click on the program such as 'The News,' the data from the database such as 'Description' will appear in the textbox.
