How to hide a property on DataGrid

[Boaz Ben-Porat]

Is there an attribute for a property on an object that saus :"This property
is not shown on a DataGrid" ?

I know it can be done on the grid itself, using DataGridTableStyle,
DataGridColumnStyle etc. But I`d like to get the same result by changing my
class, not at run-time changing grid`s behaveiour.

A small example:

public class User
{
private string m_Uid;
private string m_Name;
private string m_Pwd;

// UID should be visible on a DataGrid
public string UID
{
get {return m_Uid;}
set {m_Uid = value;}
}

// Name should be visible on a DataGrid
public string Name
{
get {return m_Name;}
set {m_Uid = Name;}
}
// PWD should *NOT* be visible on a DataGrid
//is there an attribute for this ?

[SomeAttribute.PreventBindingToGrid(true)] // this is what I`m looking
for
public string PWD
{
get {return m_Pwd;}
set {m_Pwd = value;}
}
} // End of User.


On a form with a DataGrid - gridUsers, We implement (implementation not
shown) a method to fetch users into an ArrayList of User objects, and bind
gridUsers to the list:

ArrayList alUsers = FetchUsers();
gridUsers.DataSource = alUsers; // Currently, the grid has 3 columns,
including PWD.
Can this be done (prevent PWD property from binding) ?

TIA Boaz Ben-Porat
DataPharm a/s
Denmark

 

[Nicholas Paldino [.NET/C# MVP]]

Boaz,

Unfortunately not. You will have to change the DataGridColumnStyle (or
rather, remove it) as you stated.

Hope this helps.

 

[M]

I have this same issue. Can you demonstrate a way to do this cleanly?

I want to set security so that some people can view some fields, others
cannot. Hiding from the middle-tier would be cleanest, but you are saying
this cannot be done. Can you please provide a simple example of how to do
this your way?

Thank you!

Boaz,

Unfortunately not. You will have to change the DataGridColumnStyle (or
rather, remove it) as you stated.

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- nick(dot)paldino=at=exisconsulting<dot>com

Is there an attribute for a property on an object that saus :"This property
is not shown on a DataGrid" ?

I know it can be done on the grid itself, using DataGridTableStyle,
DataGridColumnStyle etc. But I`d like to get the same result by changing my
class, not at run-time changing grid`s behaveiour.

A small example:

public class User
{
private string m_Uid;
private string m_Name;
private string m_Pwd;

// UID should be visible on a DataGrid
public string UID
{
get {return m_Uid;}
set {m_Uid = value;}
}

// Name should be visible on a DataGrid
public string Name
{
get {return m_Name;}
set {m_Uid = Name;}
}
// PWD should *NOT* be visible on a DataGrid
//is there an attribute for this ?

[SomeAttribute.PreventBindingToGrid(true)] // this is what I`m looking
for
public string PWD
{
get {return m_Pwd;}
set {m_Pwd = value;}
}
} // End of User.


On a form with a DataGrid - gridUsers, We implement (implementation not
shown) a method to fetch users into an ArrayList of User objects, and bind
gridUsers to the list:

ArrayList alUsers = FetchUsers();
gridUsers.DataSource = alUsers; // Currently, the grid has 3 columns,
including PWD.
Can this be done (prevent PWD property from binding) ?

TIA Boaz Ben-Porat
DataPharm a/s
Denmark

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

There is not such a feature.
You can implement it, though. Just create a custom Attribute to decorate
the class and in your new implementation of datagrid you can check for this
attribute and decide what to do.

Or just use the *Style properties of the standard grid.


Cheers,

 

[M]

Anyone have a link to an example of this option? Sounds like exactly what I
need.

 

[Ignacio Machin]

Hi M,

I think remember that a time ago in the MSDN magazine Dino Esposito
explained something similar, take a look at the msdn archives.