Setting The Minlength And Mexlength Of DataGridView
Jun 11, 2011Can someone tell me how to set the minlength of a particular/specific column in datagridview to 7 and maxlength to 11?
View 1 Replies
ADVERTISEMENT
Setting A Datagridview Row To Invisible?
Jul 6, 2009Public Sub View_Rows(ByVal e, ByVal Type)
rowcount = DataGridView1.RowCount
For i As Integer = 0 To rowcount - 1
[code].....
Setting Currentcell In A Datagridview?
Oct 2, 2011I am writing an program with multiple tabs. I have a class that reads a database and offers that data and other calculated data as a collection (the class is cEngines containing engine rows). I have another class which is a row (item from the list) of the collection (the class is RowData which is an engine). One of the tabs in the program contains a datagridview which is bound to the cEngines class and another tab contains controls bound to the RowData class. Both tabs have a mechanism for selecting/changing the RowData so that both tabs are syncronised. All of this works.
The RowData class has validation - both simple value checking, or more complicated checking based on other items in the class. A validation failure raises an event.
[Code]...
Setting First Row As Current In DataGridView
Aug 18, 2009I want to set first row as current row in datagrid view. In vb we can it as
grid.Row=1
Setting Row Color In Datagridview?
Feb 27, 2009I have a DGV which shows data of my transaction_table. There r 4 columns ID, NAME, DUE_DATE and STATUS. Let ID is 1, NAME is alizee, DUE_DATE is 25.02.2009 and status is notpaid(by deafault). Now , I want to set row color according to following condition...if
DUE_DATE >= current date(today's) and status="notpaid"then set row color= greenif elseDUE_DATE < current date(today's) and status="paid"then set row color= greenelseset row color = redBcoz
DataGridView - Setting Value Of ComboBox On Form
May 10, 2010I can set the value of a combobox on a form by using ComboBoxName.Text = "SomeText" but how can I do this if the combo box is within a datagridview? When I type DataGridViewComboBox the .text property is not listed. If I try to force it, I get an error.
View 3 RepliesSetting Focus In A DataGridView's Cell?
Mar 16, 2010I am trying to set the focus in a datagridview's cell after the user enters some data and tries to tab out of the cell. I can't seem to get the focus in the cell they just edited. I can change the background color, but the focus goes to the next field in the grid. I am trying to do this in the _CellValidating event. Here is my code :
Private Sub dgvFish_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgvFish.CellValidating
[Code]....
The function CheckSampleNumber() takes the value of the cell just entered, and checks to see if it has been entered either in the current grid, OR in the database.
Setting Report Datasource To Datagridview?
Jun 11, 2011My current problem is this:I have a form and I have in it three textboxes, 1 button and 1 datagridview; I also have an acceI'm learnig now on how to create a report without a database. But In how to set the datagriview as the datasource for my report
View 8 RepliesSetting The Focus To A Particular Cell In Datagridview?
Mar 11, 2009I am having trouble setting the focus to a particular cell in datagridview.
I have a timetable and on initialisation of the program, it compares the time in the datagridview with the current time. If the time has passed, the row is displayed in grey, if not then it is shown in black. I then want to scroll through the datagridview to focus on the first black line.
Here is the
-----------------------------------------------------------
Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting
[Code]....
"An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll" with the note about infinite recursion.
What have I done wrong and how do I scroll through to automatically set the focus?
VS 2008 DataGridView - Setting The Colour Of A Row?
Jun 30, 2010I have a dgv where every alternating row is a different colour to make it more readable, as you can see in my attachment.
I now want to recolour certain rows to another colour. Lets for example say all rows where column(7).value < 5 should be red or whatever.
I coloured 2 rows in the example to show you what i want.
C# - Setting A DatagridView Row To Have Focus On Form Load
Dec 17, 2009I have a dialog that containers a DataGridView, this dialog is opened from a parent Form. I would like the DataGridView to have focus as soon as the form is opened, so on pressing the down key would enable you to scroll down through the rows straight away. I have tried setting the tab index so that the DataGridView is the first selected item in the form. I have also tried calling the DataGridView.Focus() method in both the dialog constructor and the Form_Load event. I have also tried setting the
[Code]...
DataGridView Default Header Font Setting?
Apr 12, 2011I am trying to set the "ColumnHeadersDefaultCellStyle" property to the "GoudyHvyface BT" font and it will not change from the default. I am using Visual Basic 2008.
I have set the property properly with no success.
I have tried to set the property in code, using the suggestions in the MSDN and it kept throwing errors.
DB/Reporting :: Setting An Image In Datagridview Programmatically?
Feb 27, 2008I am working on my media program which utilizes the amazon ecs web service. So far it does a search and pulls a list of image url's for the dvd covers.
Is what I want to do is take those image urls and somehow feed them into a datagridview, so that the user can scroll through the images and choose the right one.
Here's what I have so far
Code:
If item.IsSetLargeImage() Then
Dim largeImage As Image = item.LargeImage
If largeImage.IsSetURL() Then
[Code]......
Setting Color To Specific Cell In DataGridView
Dec 12, 2011I want to set Color to specific cell in DataGridView as in this code , but didn't accept BackColor property.
Form1.DataGridView1.CurrentRow.Cells(3)......BackColor
Setting ComboBox Individual Row Instead Of Column In DataGridView
Mar 30, 2011I have a datagridview which has mixed values in one column. Is there a way to add a control into the Value cell depending on the row? For example, for Name and Age row, it will be a regulator textbox but for the Products row, I want to be able to add a combobox.
View 2 RepliesSetting Datagridview Cell Types At Runtime?
Sep 1, 2008in one of my datagridview controls , All the cells of a single column can have any one of the following controls :
textbox
LinkButton
Combobox
[code].....
Setting Names To Rows In DataGridView Control?
Oct 12, 2011VB.Net's DataGridView supports naming columns, but I was wondering if it could somehow do the same for rows, so that we could use something like this:
With DataGridView1
.Rows.Add(4)
.Rows(0).Name = "Setting1"
[Code].....
Do you confirm that it's not possible and we must use numeric indexes to refer to row numbers?
Setting Selected Index On DataGridView Combobox?
Oct 13, 2008I can't seem to set the selected index or selected value of a DataGridView combobox when loading data from a database. My DGV has two combobox columns which are bound to datatables. The DGV itself is not bound initially. After adding a row, I select a value from each combobox which then populates the rest of the cells in the row. I'm using the EditingControlShowing event to add an eventhandler to catch the SelectedIndexChange of the combo boxes. This all works as needed. My issue comes when populating the DGV with saved data, I need to add the rows and set the selected index and/or selected value of each combo box. I've searched through various forums and articles for the last week with no luck.
I'm using VS2008 sp1, .NET 3.5 sp1 and SQL 2005 sp2 Express.
Setting Values On DataGridView From Context Menu
Jun 5, 2010I'm have an app that currently allows a user to select a color (from a Color Dialog) which updates an unbound Datagridview with the name of the selected color & also changes the background of the selected row to that color.
I need to do one of 2 things:
Either change the Color Dialog so that I can set the colors available
Or Allow the user to select colors from a context menu and have that update the Datagridview.
Forms :: Setting DataGridView Cell In Edit Mode
Oct 26, 2009I'm having trouble with setting a datagridview's cell in edit mode, or rather, to let the user type some input on load of a form (as in Excel or the like).
This is my code (after the dgv has been filled):
dgvTentander.EditMode = DataGridViewEditMode.EditProgrammatically
'(or dgvTentander.EditMode = DataGridViewEditMode.EditOnEnter)
dgvMyDGV.CurrentCell = dgvMYDGV.Rows(lastrow).Cells(TeCOL_Quant)
dgvMYDGV.BeginEdit(True)
The code correctly indicates that the cell is selected, and when the page is loaded I can still se the cell selected, but the cursor doesn't appear and nothing happens when I type.
Setting A Unique Image For Datagridview Cells At Runtime?
Dec 3, 2010Is it possible to set a unique image for a particulur cell in a datagridvew at runtime?
View 3 RepliesSetting Column Index For Databinded Combobox In Datagridview?
Dec 17, 2010I have a datagridview with 3 columns. The second column is a combobox which I want to bind with a dataset. How do I go about setting the column index for it as I am doing something like this.
Dim ComboCol As New DataGridViewComboBoxColumn
ComboCol.DataSource = SDS.Tables(0)
ComboCol.ValueMember = "Specie"[code].....
Setting Values To Predefined ComboBox Column In DataGridView
Jan 27, 2010How to set values to a predefined combobox column in datagridview i.e., I want to set some values to this column other than binding
View 1 RepliesShow / Hide Datagridview Rows By Setting Trackbar Value
Feb 2, 2012I need a help with showing/hiding rows in datagridview by setting the trackbar value. The below example works if there are not too much rows. If there are greater number of rows then after you change a value of trackbar you must wait for a few seconds for the datagridview to redraw and only then you can use trackbar again.Apparently I must use multithreading to achieve what I want: when I use trackbar, datagridview starts to redraw, but if I use trackbar again before datagridview finishes redrawing, it immediately stops redrawing according to previous trackbar value and starts to redraw from the beginning according to current trackbar value. That way trackbar will never be frozzen (stuck, unusable...).I tried with backgroundworker but got error "Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on." I have old and slow computer. If you have new and fast computer maybe you wont experience what I'm describing here so try to increase number of added rows in line 'For i As Integer = 1 To 5000' (I added 5000 rows here) - and if you have even older and slower computer than you will have to decrease this value or you will have to wait to long after you drag the thumb in trackbar.
View 5 RepliesControling, Saving, Setting Column Order In DataGridView Object
May 25, 2009I have several forms that have a DataGridView object in them. I recently discovered the AllowUserToOrderColumns attribute. I set it to true and I can reorder the columns at will. The problem is that the order for these columns is lost once the form is closed. Ok, how do you save the order for these columns and then restore them to the form once it has been reopened?
View 4 RepliesSetting Focus On DataGridView Control Programmatically In Visual Basic?
Aug 10, 2009I want to programmatically set the focus to the last row (bottommost, its only one column wide) in the DataGridView control for Visual Basic. How can I do so?
So far, I have tried DGV.Rows.GetLastRow(DataGridViewElementStates.Selected)
without success, though I did not expect that to work. It absolutely must select that last cell. Otherwise, the application is nearly impossible to use!
Here is a screenshot of what I am making with this: [URL]..The "Paste Clipboard Contents" button only pastes into the selected cell, though I guess I could find a workaround.
VS 2010 DataGridView - Null Reference On Setting Column Width?
Jun 9, 2010I have a databound DataGridView, and I'd like to keep one column in front, with a slightly smaller width than the default. The grid's AutoSizeColumnsMode property is set to Fill so that the columns fill out the entire grid. This makes the first column equally large as all others, which is why I need to set its width manually. The smaller column is the first one with the checkboxes. I have two grids that I need to do this with, and for some reason it works just fine with the first grid, but gives a null reference error on the second grid...
Here's the code for the first grid (working fine):
vb.net
Public Sub UpdateTodoGrid()
' Load todo items
todoGrid.DataSource = _TodoManager.LoadAll()
' Set backcolor
For Each row As DataGridViewRow In todoGrid.Rows
[Code] .....
As you can see, the code is exactly the same (except for not setting the BackColor of each row and not using the ReadOnly property*). When I run this code, it gives me a null reference error ("Object reference not set to an instance of an object.") on the line where I set the column's Width. Obviously 'col' is not Nothing (otherwise it would have errored before that line), and there's nothing else there that could be Nothing... I assume that something happens internally in the grid when you set the width of a column, and that there is a null reference there, but obviously I have no control over that.
The grid's are absolutely the same, as the second grid is just a 'copy' (meaning I copy/pasted it in the designer) of the first. So all their properties are equal. I thought maybe the ReadOnly properties were the problem, but I tried putting them in in the same way and the issue did not go away... The first grid is not ReadOnly (because the checkboxes need to be editable), but all rows except the first are, while the second grid is completely ReadOnly.
DataGridView / Data Source (Adding New Row Programmatically) + Custom Control 'setting?
Jul 30, 20101. I have a DataGridView box, that is connected to a MySQL database via the 'Data Source'. I am trying to do the datagridview1.rows.add("info here"), however i receive an error i cannot do this programmatically. I DO know the code to post to MySQL via the "insert into" la la la.However, I was curious if I can do this via the datagridview a bit..easier/simpler, such as a "datagridview1.rows.add(stuff)" sorta thing.
2. I am attempting to make a custom control, and as with ANY control, they have their.. settings. Example, a textbox, or label, has so you can set the Text. and color, etc.Others, have it (such as datagridview) have the little icon on the control itself, where you click it, and it opens a small window with settings.
Setting Short Function By Setting Poker Game Points?
Aug 23, 2010I need help and wondering if you can help me to get my first project...it's a hobby and wondering if you can get me code for this so i can see how it does it* Evaluate( ) Prints the evaluation of the hand to the evaluation Label.
o If IsFlush( ), prints "flush; "
o calls SetPipArray( )
o Uses a For Loop to go through pipArray. For each element, uses a Select Case statement to
[code]....
Datagridview Bound To A Datatable Setting Its Datasource Property To The Datatable
May 20, 2011I have a datagridview bound to a datatable setting its datasource property to the datatable. I would like to have a child form that contains a list of columns associated with the datatable that contains a checkbox that will allow the user to hide and show the columns ( I do not know the best control to use here) (I assume this is the easy part as All i need to do is loop through each of the datatable's columns to get the column name)
now I would like save these visible columns on some event like form_closing so that the next time the user opens the form up it will remember the settings