VS 2008 Create Custom DataGridView Cell From UserControl
Feb 16, 2011
Well, the title pretty much says it all. I have a user control that is a a collection of six label controls. three are used as visual color indicators, and the other three are used as the corresponding value for each color indicator. (It's sort of like a legend key on a chart or map.) I have created a custom class to store the three values, and the associated methods to interact with the values. (I can probably use a structure instead of a class, but right now, I don't want to discuss that.) My problem, is that I want to show my user control inside a cell of a DataGridView. I've looked at the examples that create a MaskedTextBox DataGridViewCell, but I can't seem to get it to work. Here is what I have:
[Code]....
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Aug 6, 2009
I have a custom dgv column and custom cell.I m trying to instance the column and pass it an instance of the cell as a template, but it's not working.my code needs a form with a button and dgv on it. When the button is click, the text in cell(0,0) should toggle from on to off. [code]
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Jun 25, 2009
I came across this great article on creating a custom datagridview column which creates a graph-like effect in the cells of a custom datagridview column:[URL]..Does anyone know how you would edit this to format the number in the cell as a percentage? And does anyone know how you would set this up to take 0 values which do not create any graph effects at all.I have been trying to do this but keep getting errors.
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Jun 21, 2010
I believe that my questions are all going to revolve around the internal workings of DataGridView.While this is specifically written in VB.Net, it is definitely a general Visual Studio object question generically related to anyone working with .Net.I've been trying to find a forum where I can get some interaction and help to move forward.Microsoft's websites seem to be all questions and no answers.
I'm using VB.Net under Visual Studio 2005 SP2.I need to have a DataColumn that is dynamically visible based on other data in the same DataRow.After a lot of unsuccessful testing with various methods of accomplishing this, I came across the concept of Custom Cells/Columns.I started with several slightly varying examples and everything seemed to be falling into place. I tried to research each property and attribute as I incrementally learned a lot about the internal workings of Windows controls in general and DataGridView in particular.
The confusing symptom is that as I scroll down through the grid, the painting of the custom cells is at best unreliable.I created a minimum test case to eliminate as many variables as possible and I combined all of the source into one Form1.vb as follows:
[Code]...
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Sep 19, 2011
I'm trying to show a custom contextmenustrip on my datagridview and it works fine except when the cell is being being edited. Then it shows the default windows contextmenustrip with copy/cut/..Is there a way to overwrite the DataGridViewTextBoxCell contextmenustrip or disable it? The solution from Disable DataGridView System ContextMenu does'nt work for me.
Private Sub DataGridView1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DocCostGroupDetsDataGridView.MouseDown
If e.Button = Windows.Forms.MouseButtons.Right Then
_CustomContextMenuStrip.fGetContextMenu()
[Code]...
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Nov 30, 2011
I am trying to display a custom control in a datagridview cell so that I can show nicely formatted information.
I am quite comfortable with the use of datagridview control accepting a list of objects as its datasource. I am also comfortable with populating the cell contents in the cellformatting event.
So I am planning to, instead of using a normal textbox control, button control and linkedtext control in datagridview cell, display my own custom control which is good one for displaying some custom data like, name, address, telephone, photo and others. It would be a nice improvement in my application.
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Aug 30, 2011
I've been trying to customise a datagridview but no luck so far, thing is, i want some of the cells to not have the same grid colour and width as all the rest of the grid. Do you guys know how can this be done? I know it is possible cause i've seen it before but i have no clue how to accomplish that.
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Jun 14, 2009
I have created a custom column type for a datagridview. I have created a class for the datagridviewcolumn and a class for the datagridviewcell. Within the datagridcell class I am using the following code for the font.Dim fnt As Font = parent.InheritedStyle.Font How do I change this so that I have control over the font color for that cell? I am fine with the font just not the color.
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Jun 5, 2009
I have added a custom Control to my project, but every time I edit it and rebuild the form that I use the custom control in adds the project name in front of the control and won't compile. i.e. Project name = MyProject, Custom Control name = MyControl. When I rebuild the project after editing my control I get an error, MyProject.MyControl doesn't exist. If I remove the MyProject from the line it compiles and runs fine until next time I edit the custom control.
I can't figure out what I would be doing wrong to cause this, or why it is putting the project name in front of the control, but then not accepting it. I am also struggling figuring out how to change the back color on an individual cell in an Datagridview Combo Box. The style.backcolor property of the cell doesn't seem to do anything.
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Dec 15, 2010
In DGV, if the contents of the cell is truncated, the DGV shows ellipses (three dots) (...); but as the font is set to a Gujarati font, it displays a Gujarati alphabet "ઈઈઈ" instead of "..." because the Gujarati character "ઈ" is coded with the English "." (dot) character.In Gujarati font, "." can be generated with the English character "P".So, How can I change the ellipses to English "P" character? OR How can I remove the ellipses completely?I have found a similar solution by berc on Tuesday, August 31, 2010 1:33 PM :but I am not sure it is the perfect and/or the only way to do so, AND it will really work or not
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Dec 3, 2009
I have created a custom UserControl, with a custom designer, which contains a Panel which is editable. Any controls dropped onto this Panel will go off-form when an Anchor is set. This was already reported here and acknowledged as a bug:[URL].. Are there any known workarounds? Or available hotfixes for this issue?
I already implemented ISupportInitialize in my custom panel class, where i set the docking, which doesn't help. Here's the relevant code:
[Code]...
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May 24, 2010
I'm using an on key down event for my datagridviewer that fires every time a key is pressed while the datagridviewer is selected(Focused).I want the same thing to happen while in a cell, but there is no event for key down in a cell.
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May 25, 2009
I have a form where the user will choose multiple clients from a subform that has a DGV.Each row has a checkbox indicating that it has been selected.When the user is finished selecting the clients, I need to store the selected clients ID Number, Name, and Program Number either in a temp table or another method to only handle about 30 records.After that part is done, I need to create a new tab for each client which has a UserControl on the tab. I have the new tab thing working but I need to learn to apply the client to the first new tab/user control then create another and so on.
Private Sub frmCaseNts_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code].....
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Feb 5, 2009
I have a DGV with several columns in it displaying some data. I want to be able to have certain rows in the DGV act as category headers to provide separation of the data. The category header should be a row that has one column that extends the full width of the DGV. How can I create this mix of single & multicolumn rows within the same DGV?
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Nov 6, 2010
I 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]...
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Dec 6, 2011
I have the following code in "Custom Code" in SSRS 2008. It works fine in VS2008 but it won't run on the server:
Public Shared Function Ns(ByVal num as Object, ByVal def as Object) as Object
if IsNothing(num) OrElse Not IsNumeric(num) OrElse System.Double.IsNaN(num) then
return def
[code].....
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Dec 22, 2009
[url]
I tried out this calendar column from msdn... I was fascinated by it and try to imitate it but now I want to use a simple usercontrol(a button and a textbox)
It is working fine but I have a bit of a problem with the look. it doesn't resize the cell
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Jun 27, 2011
I have a custom control with a TextBox, Label and a ComboBox. All I want is to be able to select a binding source(for the TextBox from the properties window when i use the control on a form. I have managed to get the controls Textbox to allow this using[code]...
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Dec 22, 2010
I want to enable the DataGridView's particular cell as multiline...and accordingly the rows width has to increase automatically...
My Codings:-
------------
Dim MyDtb1 As New DataTable,NRow as DataRow
[code].....
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Aug 13, 2009
I'm making a data entry form using a datagridview and I want to control which cells in a row are visible. For example, I only want the first cell in a new row to be visible until I validate what was entered - then I'll either fill in the other cells with data or ask for user input.
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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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Apr 29, 2010
I have a datagridview, wich on colum is a Combobox getting data from another table.This column it's an evaluation score mark, who permit user choose between number 1 and 10I wanna do the following:In my DGV, if the value is lower than 5, then paint this cell, and only this cell, redIf the value is uper than 5, than paint this cell green (and only this cell).That means in the DGV I will have at the same time, red and green cells.
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Nov 3, 2010
I am having trouble when I am running the below code. I a datagridview (DG) and it has one column that is a DataGridViewComboBoxColumn and this gets populated from a list in a database.I want to go through all the lines in the DG and add them to a SQL insert statement
Dim RN As String = "Show Cell Address"
Try
Dim tempsql As String = ""
Dim sqli As SqlCommand = sqlconn.CreateCommand
Dim Counter As Integer = 0
[Code]...
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Jun 24, 2010
I have a dgv with 14 columns.
If i'm in dgv.item(8,0) in edit mode What code can i use to jump to (12,0) and also enter editmode.
I call it editmode, dont know what the actual term is . Its the state where you can enter a value into that cell
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May 24, 2012
I am working on a vb6 to vb.net migration project using vs 3.5. I have a datagridview.in a particular cell of this grid, user has to enter only numeric data. but after user enter data, itshould become concainated with a $ symbol (eg: if user enter 34, the cell value should become $34). And if he/she presses the hyphen ("-") in the key board, the data (ie. $34) should become -$34 and if again presses the hyphen button in key board, the data should become $34.
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Aug 2, 2011
vb.net
Private Sub DataGridView1_CellValueChanged _
(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellValueChanged
[code]....
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Feb 11, 2010
I have a big datagridview that has a list of items, that have several states, every state has a date. My dgv will look like this:
----- Date1 | Date2 | Date3 ...
It1 |
It2 |
It3 |
The same item can have multiple states in the same date, for example: The item1 enters the factory in the date1, and leaves the factory in the same date1, what i need it's that the intersection cell, have one line with the background in green with an F (means that the item enters in the factory), and in the same cell, but in another line (multiline) in the same cell i need another F but this time with the background red (means that item leaves the factory).
The usuals columns doesn't allow me to do this, i created a simple code to use a image column and then draw a image that does what i want, but i don't like the final results and it's a little slow, and when i select the full row, i don't have the usual selected cell visual effect in this columns... I was thinking to create a datagridview column with a different type (inherited) but i don't know what column to use as base column for my column, image column and then paint the content of another control in the cell or another type?
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May 11, 2010
I want to send the data that i just entered into a cell to an If-statemens to perform certain functions.I an using the following code just for testing purposes:
1
Private Sub DGVReceipt_CellLeave(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGVReceipt.CellLeave
[code].....
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Nov 17, 2009
I have a bound DataGridView where the user should enter an item number in one cell, the name of this item will be displayed in the next cell, and depending upon variables of this item number, the focus should be set to the correct cell on the same row.
My problem is that I can not seem to get the focus to the correct cell.
My code so far. I am having problems with the marked line:
Private Sub dgvOrdreregistrering_CellEndEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvOrdreregistrering.CellEndEdit
[Code].....
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Aug 16, 2009
I'm trying to format a column of numbers is a datagridview and I'm having some problems. This is the code I'm using: dgv.Columns(5).DefaultCellStyle.Format = "n2" If the number I put in the cell is 100.50, it shows up as 100.00. If I try to edit it back to 100.50, I get a "value was either too large or too small for an Int32" error. The cell also is accepting Char data. I want to format the column so it only accepts numbers in a '#####.##' format.
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