New whitepapers for building DataGridView custom cells and columns

New whitepapers for building DataGridView custom cells and columns

• Rob Mauii

  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.

  
  

• AKazi

  What if the NumbericUpdown control is disposed
  MyForm frm = new MyForm();
  
  void Test()
  {
  frm.ShowDialog();
  }
  
  void Test2()
  {
  frm = new MyForm()
  frm.Show(); //Error
  }
  
  
  

• dush1

  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

  
  

• Deefer

  Hi Regis,

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

  thanks you

  
  
  

• cehlers

  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

  
  
  
  

• Eylem Ugurel

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

• Kirill Tropin

  Hi Buster95,

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

  Can i have it

  Thanks you

  
  
  

• somebodyelse

  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

  
  
  

• Stephen Todd MSFT

  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.
  
  

• adi151478

  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 cara2006@sapo.pt, please

  Thanks

  Cara

  
  

• Konstantinos55265

  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;

  
  

• bizhaoqi

  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

• engp1584

  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.

  
  

• CleverCoder

  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
  mbmiller@micropath.com
  

  
  
• New whitepapers for building DataGridView custom cells and columns