New whitepapers for building DataGridView custom cells and columns

Question

Hi all,

We just posted two new whitepapers about building custom cells and columns for the DataGridView control:

Building a custom RadioButton cell and column for the DataGridView control  (Source and Sample Code)

Building a custom NumericUpDown cell and column for the DataGridView control  (Source and Sample Code )

The docs, source code and sample code are under http://www.windowsforms.net/WhidbeyFeatures/default.aspx?PageID=2&ItemID=13&Cat=Controls&tabindex=5

Enjoy!

-Regis
Microsoft Windows Forms team
This post is provided "as-is"

Answer 1

 

Hi Regis,

Please help me with this my project requires something similar to the post at http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=233259&SiteID=1.

The post was very help full; can u please give me some more information on how to to place a icon next to the text in a data grid view col;  means the icon and text shud look in same col

// i am using VS2005; and i m aware of the datagridimage col; but it can only display image;

i hav tried with many sols provided in web but with not much luck; please help me with this

what will be the best option

 

Thanks in advance

---

 

Answer 2

Hi,

 Also is it possible to display a local image in to textboxCell along with the data recevied from a database,

for eg i want to show a icon based on the status of the record

As far as i think: i can do it in two ways by storing the icon in sql server or else setting a flag and depending on it changing the icon(choosing frm local resource)

wats according to u is the best option; which will guarentee the better performance

 

Thanks in advance;

 

 

 

Answer 3

What if the NumbericUpdown control is disposed?
MyForm frm = new MyForm();

void Test()
{
    frm.ShowDialog();
}

void Test2()
{
    frm = new MyForm()
    frm.Show(); //Error
}

Answer 4

I think I have the same problem.

I’ve tried incorporating the NumeicUpDown column in a solution.  The first time I show the form containing my DataGridView, it works fine.  Than, I close the form and try to show it a second time, and it crashes here :

//DataGridViewNumericUpDownCell.cs
//Line 579

// Make sure the NumericUpDown control is parented to a visible control

if (paintingNumericUpDown.Parent == null || paintingNumericUpDown.Parent.Visible)
{
    paintingNumericUpDown.Parent = this.DataGridView; // <==           
}

 

It trows a ObjectDisposedException.

Stangely, I use the NumeicUpDown column on a other form and it works without a glitch.  

Answer 5

One more problem: When the form containing the DataGridView with NumbericUpdownColumn is disabled and enabled again, the column is still painted in disable, :(

Answer 6

 

How we can set the default values for those

editing Control .

Like By Numberic Updown COlumn i want it starts from 1 or 10

By date calender Probelm i want to set the start default date.

How we can achieve this with these Editing Controls

How we make these Controls Also opens with the keyboard without mouse help

 

 

Thanks a lot in advance

Answer 7

The solution for this exception is very simple. You only have to remove the 'static' modifier at line 54 of DataGridViewNumericUpDownCell.cs

It worked for me.

Answer 8

Is it possible for Microsoft to add VB.Net 2005 source code to your white papers:

 

1) Build A Custom Numeric UpDown Cell and Column For The DataGridView Control

2) Building A Custom Radiobutton Cell and Column For TheDataGridView Control

 

I tried to convert the C# code in the article on the RadioButton but did not have any success.

 

Also, is it possible for the radiobuttons to be horizontal in a cell instead of vertical?

Thanks in advance,

Marc
[e-mail]

Answer 9

Just a quick question, before I start putting time and effort into researching and implementing something.  Is it possible, or more important, is it possible without a LOT of work to implement DataGridViewCell's who's value is something more complex, ie perhaps a class of somesort?

I'm wanting to create a customizeable view, using the TreeGridView, and then create some cell's that have custom painted graphics to represent various data, for example, one will store and display the last 5 values of an event I will be listening for (its a bit more complex than that but simplist way to explain).  So most likely it will be storing an ArrayList or similar that will store 5 float values.

One of them will be a lot more complex than that, storing a lot of information for various different things.

Thanks for any responses :)

[edit] PS. These won't be user editable, they will be entirely driven by backend data, it will merely be a way for customers to see complex data about service information etc.

Answer 10

Hi Regis,

Do you have the sample code of DataGridViewNumericUpDown in vb.net?

thanks you

Answer 11

Hi Regis,

Will a c++ example added soon? Or can you point to a c++ example that uses a class derived from an interface class in visual c++ 2005. Thanks

Regards

dave.t 

Answer 12

Hi Buster95,

did you manage to get the DataGridViewNumericUpDown in vb.net 2005?

Can i have it?

Thanks you

Answer 13

Hi,

Does someone has the source code in VB.Net 2005 to these two white papers?

1) Build A Custom Numeric UpDown Cell and Column For The DataGridView Control

2) Building A Custom Radiobutton Cell and Column For TheDataGridView Control

 

If so, can you send it to [e-mail], please?

 

Thanks

Cara

 

 

 

Answer 14

 

   I'm using the CalenderColumn provided from MSDN with the address http://msdn2.microsoft.com/en-us/library/7tas5c80.aspx#Mtps_DropDownFilterText

the problem is that when I want to validate to datetime fields using CalenderColumn from RowValidating event of the datagridview, I get stucked. I validate if two datetime fields have a day difference of 1.

TimeSpan diff = seconddate.Subtract(firstdate);

if( diff.Days  < 1)

{

   MessageBox.Show("Second date must be greater that first date");

   e.Cancel = true;

}

please try it yourself and see the result. Any idea?

Answer 15

I am also looking for an UpDown Column to be used in VB 2005. I see a number of posts but no replies on this forumn. Could some one be kind enough to help. Thanks Bob5461

Answer 16

I want to add an checkbox control on the headerCell of DataGridView.how can I do it.Override Paint? if it's right but the event whether will be disappear?

Answer 17

Regis -- great work on the custom DataGridView columns.

Any chance you'll be doing a Rich Text Format column any time soon?


I'm currently in need of a read only RTF cell control for the DGV.  I have about 9 distinct pieces to shove in a single cell.  I suppose I could use 9 text box controls and attempt to hide the box lines (so that 9 boxes look like one) but RTF would provide a much nicer way of doing things.

Another option would be to wrap Excel functionality into this but I'd rather not......


Thanks

Answer 18

 

 

             NumericUpDown cell throws ObjectDisposed Exception! Has anybody met the same prblem?

Answer 19

The sample code has a problem. 

If the DataGridView with the NumericUpDown column is on an MDI child form, then it will display correctly the first time the MDI child form is displayed in the MDI container.  However, if the MDI child form is closed and then re-opened in the MDI container, then the DataGridView will fail to paint cells (starting with the first NumericUpDownCell).

Answer 20

Did you find a solution to this? I'm experiencing the exact same problem:(

Answer 21

I never figured out what caused the problem, but I did sort of find a way around it.  If you just follow the example on http://msdn2.microsoft.com/en-us/library/7tas5c80.aspx to make custom column types, it seems to work.  I'm sure there's some minor difference between that example and the NumericUpDown example, but I never ended up taking the time to figure out what.

Furthermore, vendors (such as Infragistics) have implemented custom column types for the DataGridView control that have no issues with the MDI container, too.  These cost money, though.  Of course, you might already have these if you already have a license to their WinForms suite.

Answer 22

Try here for NumericUpDown control in dgv

http://www.knowdotnet.com/articles/kdngrid.html

Answer 23

Try here

http://www.knowdotnet.com/articles/kdngrid.html

Answer 24

Try here http://www.knowdotnet.com/articles/kdngrid.html

Answer 25

hi

i create my own customized datagrid columns and thy are working fine if i use them with in code

but customized columns types are not listed in design time when i add new column

can any body help me??????????????????????????

thanks

Answer 26

The links above are now broken - are these whitepapers still availalbe?

 

Thanks!

 

- Josh

Answer 27

Removing the static modifier worked for me also thaks
[ThreadStatic]
private static NumericUpDown paintingNumericUpDown;

Answer 28

Yes I found one at
http://msdn2.microsoft.com/en-us/library/aa730881(vs.80).aspx

Answer 29

McBain wrote:

The solution for this exception is very simple. You only have to remove the 'static' modifier at line 54 of DataGridViewNumericUpDownCell.cs It worked for me.

 

The 'static' modifier is there for performance / memory reasons to prevent a separate object being created for every cell in the column.

 

An alternative solution to McBain's might be to leave the 'static' modifier in, but edit the constructor routine (line 77 in my code) to read:

 

Code

if (paintingNumericUpDown == null || paintingNumericUpDown.Disposing || paintingNumericUpDown.IsDisposed)

Block

 

I have briefly tested this and it appears to work, avoiding the problems of the ObjectDisposedException being thrown the second time the form / container is created.

 

Hope it helps others.

Regards

 

Chris 

Answer 30

Hi,

Please help me to customize a datagrid view that is capable of showing HTML/RTF/Any Tabular Format text in one of its column. I need not allow the user to edit the contents, but to display the information in Tabular Format.

Is it possible to keep Webbrowser control or RichTextBox or even another DataGridView within a DataGridView Column?

Please help me. Its my urgent need.

Thanks and Regards,
ManiX.

Answer 31

Regis Brid wrote:

Hi all, We just posted two new whitepapers about building custom cells and columns for the DataGridView control: Building a custom RadioButton cell and column for the DataGridView control  (Source and Sample Code) Building a custom NumericUpDown cell and column for the DataGridView control  (Source and Sample Code ) The docs, source code and sample code are under http://www.windowsforms.net/WhidbeyFeatures/default.aspx?PageID=2&ItemID=13&Cat=Controls&tabindex=5 Enjoy! -Regis Microsoft Windows Forms team This post is provided "as-is"

Is there a way to put an empty string to the numericupdowncolumn? Each time I empty the cell, the value will return to the old value. Is there anybody who could give at least a lead on this?

many thanks in advance,
eka.

Answer 32

Hello MaximeR,

I got the same problem too, so u able to figure out some solution for it or the static thing is the only solution and is it having some dangerous potentials. Looking forward for your reply.

Regards,
Vakulsr

Answer 33

Regis Brid wrote:

Hi all, We just posted two new whitepapers about building custom cells and columns for the DataGridView control: Building a custom RadioButton cell and column for the DataGridView control  (Source and Sample Code) Building a custom NumericUpDown cell and column for the DataGridView control  (Source and Sample Code ) The docs, source code and sample code are under http://www.windowsforms.net/WhidbeyFeatures/default.aspx?PageID=2&ItemID=13&Cat=Controls&tabindex=5

 

Are these still up? The links don't seem to work any more.

 

Answer 34

I am interested in using this control for a commercial product.  The EULA gets installed, but is somewhat confusing.  Is it OK if I use the CS files for a commercial product and have multiple team members compiling?