-> MS Visual Studio 2010 (vb.net)
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I made an account manager where i can store all my accounts and I want it more protected, how can I changed the displayed text in my "colPassword" in datagridview? Just like in textbox the PasswordChar, please give me sample code :)
I want to see if anyone has used one table that has a primary key (not displayed) in the DataGridView. Then use a text box on the same form to call and group what if viewed in the DataGridView table. I want to group the displayed data of the DataGridView by the primary key of both tables.
View 1 RepliesI'm Making a Simple syntax highlighter and I'm Doing the highlighting in the text Changed event of a RTB and for obvious reasons I can't re highlight the whole document each time someone presses a key so i highlight one line each time the text changes. But this creates a Problem. If someone pastes code into the RichTextBox It only highlights the last Line. So is there a way to get if the user typed the text in with his keyboard or pasted it from the clipboard in the text Changed event?
View 6 RepliesI'm writing a program for my job in which we are keeping track of employees usage of food at work. The form in question interacts with an access database to a binded control with labels and textboxes. This form I'm working on is the user view which doesn't allow them to input their username, I have the user name saved to a variable but it will not display when I the add a new record. I tried many things but I'm just getting frustrated.
Is there away to add data to a row that is not displayed on the screen in a textbox for the user to see? There are 3 different "cells" (textboxes) I want to be filled in by other code without the users knowledge.
I'm currently using MSAccess 2010 and Visual Studio.net 2010
I have a datagridview with 3 displayed columns and 10 columns overall. If I run the program the gridview start with the first column visible and displayed. Now i want to scroll with the vertical scroll bar.
If i click on the "right" button of the scroll bar
my DataGridView1.Scroll - event
says:
DataGridView1.Columns(0).Displayed=True
DataGridView1.FirstDisplayedScrollingColumnIndex = 1
So this means "yes, the first Column is displayed but the first displayed Column is the second one!"
This doesn't make sense to me. Is there another opionion to this Problem, or is this just a small bug?
I use Visual Studio 2008 Pro (Visual Basic) with .NET Framework 3.5.
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I am workinng on an aopplication using the DataGridView.My intent is that the DataGridView is displayed with four columns, the user clicks on a row in any column and the complete record for the selected item is displayed and the DataGridViewis no longer in view.
The code to do this is in the event "dgvCollections_CellContentClick" and the function works exactly as I want it to.The problem is that when I want to sort by a specific column I click on the column header and not only does it sort , it calls the 'CellContentClick' event and the details form is displayed, which I do not want to happen.Is there a way around this problem other then using the "dgvCollections_CellContentDoubleClick" event to select the detail? This was what I did as I sterted this project and I found that the double click was very sensitive and often did not work. The single click is much better for the eventual user.
I'm creating a Datagridview for user input. When the Datagridview shows on screen, the user can open a ContextMenuStrip that includes Copy, Cut, Insert, Delete, .[code]...
View 6 RepliesI am using a DateTimePicker to allow the user to select dates between which, info from a database is selected and displayed in a DataGridView.This works fine exept that the dates selected by the DateTimePicker seem to bring back results in US date format!
If I do a debug.print (DateTime1.text), the date is in UK format i.e 11/05/2009 but when these variables are used in a Select statement, the dates returned seem to be in US format e.g. selecting dates between 01/04/2009 and 7/05/2009 selects dates between 04/01/2009 and 05/07/2009 when the results are displayed in the DataGridView!
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I need helpHow can I Print data which displayed on DataGridView?
View 6 RepliesI've created a Datagridview bound to a Datatable. This Datatable is updated by a event to reflect statistical information as it changes (sub second resolution). I have a checkbox to determine if a row is available for other functions and can be toggled on and off normally if my eventhandler is not receiving my updates.
If my bound Datatable is changed, the checkbox returns to its previous state as soon as the cursor or focus leaves the checkbox glyph (not the cell).
How do I toggle the checkboxes without them reseting without disconnecting my eventhandler?
I need to "refresh" a DataGridView, bound to a database table, on a form within a TabControl The DataGridView is loaded correctly on strartup... But if the data in the DataBase change, How do I refresh it to reflect new records or updates?
this is what I am doing in code, after looking for some examples on the web:
MyTabBindingSource.EndEdit()
Me.MyTableAdapter.ClearBeforeFill = True
Me.MyTableAdapter.Fill(Me.MyDataSet.MyTable)
[Code]....
but nothing changes at all...Do I need to refresh/repaint the TabControl as well as th Form containing it? or what else??
I have an excel file SpeedStudy.xls located in (C:/files). I need to extract specific cell values to be displayed in a DataGridView.
For example:
I need the value of Cell: B6 to be displayed in the DataGridView under the Road column. How can I retrieve cell values?
I have a datagridview control on my form. i use this to display data including images. Please how can i set the row height of the datagridview control so the picture can be well displayed?
View 2 RepliesI have a number of records being displayed in a data grid view, but I want to be able to sort these records via the date. Clicking at the top of the column just sorts them in relation to the first number of the date.
View 1 RepliesI've been searching all over and I'm either not searching for the right words or it just doesn't exist. I've got a datagridview (dgv) on a form with some textboxes that are databound to different fields in the dgv's datasource. I want to capture an event if someone changes a value through one of the databound controls so I can mark the row as modified. I've been going through the dgv events trying to capture something, but I can't find anything that fires when a value is changed. The dgv is read only, so the values can only be changed through the databount textboxes.
How to I know if someone changes a value in the dgv? Is there a setting in the dgv that will tell me if a row is modified?
I have an unbound Datagridview which gets its data from an array from an Excel sheet. I give the user the chance to amend this data in a Datagridview. I then need to know if the user has changed this data before processing it further. I have in vain, tried to use IsCurrentRowDirty, IsCurrentCellDirty, looping through DGV matrix etc. It seems that because the DGV is not bound to a dataset then the normal properties like HasChanged and the 2 above don't seem to work. Here is my attempted code which is not working:
Dim DGRow As DataGridViewRow
Dim DGCell As DataGridViewCell
For Each DGRow In DGV_ReviewDetails.Rows
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i'm using vb 2010 to write a program for my school. i'm asking the teachers to key in their student's curricular activities into a program through datagridview. i manage to restrict the code they enter by validating it in the datagridview cellvaluechanged event handler. my idea is as follow.
1. teacher enters code in the datagrid.
2. vb check the the value and if it is in the database then update. if not then give a preset value "-1" as no record.
these are my code...
Private Sub DataGridView1_CellValueChanged(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellValueChanged
Dim Cn As New ADODB.Connection
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my problem is... is there a way so that when the teacher enters an INVALID CODE and leaves the cell by mean of pressing "enter" or by clicking at other cells, the cell edited before is remain focused and the value before is revert back?
I have a datatable containg names and addresses displayed in a datagridview and need to send these to the printer.
View 3 RepliesI created a tree view and I would like to know if (and how) I can add to a given node a datatable (displayed in a datagridview) with a click on the same node. Let me know if my question is not well described.
View 1 RepliesI have a question, how to count how many times the text has changed in label.text ??
View 3 RepliesI have a DataGridView on a windows form.
The 4th column is a combo box column.
Now what I want to do is capture the event every time a value is changed in the combo box drop down (selectedindexchanged). When the index is changed, I want to grab the row number, and then I will grab the value of the now selectedindex and do some database updates with it.
I currently have tried to put together an event grabber when the combo box is changed, however it doesn't work correctly.
My code is:
Private Sub dgvRooms_EditingControlShowing(ByVal sender As Object, _
ByVal e As DataGridViewEditingControlShowingEventArgs) _
Handles dgvRooms.EditingControlShowing
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I put in a message box to check that it was capturing the event. I then noticed that it captures it more than once when you change the value.
The problem is when I go to click the down arrow on the row, the event is run once (message box show). Then you have to click a second time (event is run again with message box) before it shows the drop down list.
Then when you click on the value you wish in the drop down box it shows the message box (the only time I want it to run).
Then when I leave that row, it shows the message box two more times.
Effectively it goes to update the data 5 times, I only want to do it once.
I can not there is a pencil editing icon when you click on a row to the far left, and it appears when you leave the row, after already clicking on your value, it then checks on row leave that the values havn't changed, hence it runs two more times.
How do I make it so it only runs once on the value being changed?
Is there a way to disable the pencil editing, but still enable the combo box column to work? (be clickable and choose an option)
I have datagridview with XSD as the binding source (i configured it with the smart tags). After build, the dgv change its columnIndex which surely result error of my code.
For example
columnIndex(0) = idEmployee (dataGridViewTextBoxColumn)
columnIndex(1) = name (dataGridViewTextBoxColumn)
columnIndex(2) = status (dataGridViewCheckBoxColumn)
suddenly, the columnIndex(2) moved into columnIndex(0)
I am using oracle database and i already created a connection and retrieved data from my oracle DB to Datagridview using oledb commands,now my major challenge which has gotten me sick is to update any changes made in the datagridview to the oracle database. I tried using sqlcommandbuilder but failed. This code is what i used to retrieved the data from oracle and place it into the datagridview.
These are my declarations i made at the beginning of the form:
Private myDA As OleDbDataAdapter
Private myDataSet As DataSet
These are the codes inside the search button to load the retrieved data from oracle into the datagridview
Public con As OleDbConnection = New OleDbConnection("Provider=MSDAORA.1;User ID=SYSTEM; Password=simon; database=project")
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Ive got a datagridview, which the user can put in to 'edit' mode by double clicking. If they then make changes but click to another row, I want to msg asking if they are sure they want to discard then changes. If they say No I want to stop the selection change from being made.
Private Sub DataGridView1_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataGridView1.SelectionChanged
If edit = True Then
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vb.net
Private Sub DataGridView1_CellValueChanged _
(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellValueChanged
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I'm using a DGV and i'm looking for the best way to update the database whenever a new row is created OR whenever any datagrid view cell changes.
The following code works fine for new rows and my question is how can i adapt it to include ANY other changed cells of any other rows being or not new rows.
If Me.PECASDataGridView.CurrentRow.IsNewRow = True Then
Me.Validate()
Me.PECASBindingSource.EndEdit()
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I have a WinForms app with a datagridview and a bindingsource. I want the user to confirm changes before I save them to the database. don't want to pop up the confirmation dialog unless I know the user has made changes. So I need a way to check if changes have been made.
View 2 RepliesChanging DataGridView BindingSource at Runtime Works but then Fails When Changed
View 1 RepliesI am working in Visual Studio 2005 in Visual Basic. I have some combo boxes with the following list in the dropdown menu:Pick 1 > New CommentPick 2 > PassPick 3 > FailPick 4 > Recommend ReplacementWhen the user chooses one of the options, I only want the text after the ">" to be displayed in the combo box's text area.[code]When I run my program, it still displays "Pick 1 > New Comment" in the text part of the combo box.
View 6 RepliesI am a beginner using Visual Basic 2008. I have a problem and can't figure out the code for the following. I have a form that contains two text boxes into which the user types information. When the user clicks on one of the textboxes it becomes blank and it's contents are displayed in the other text box. I seem to be using the correct codes but can't get it to work right. Does anyone know the correct code for this?
View 4 Replies