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

"Boaz Ben-Porat" <bo***@datapharm.dk> wrote in message
news:uu**************@TK2MSFTNGP09.phx.gbl...

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

[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!
"Nicholas Paldino [.NET/C# MVP]" <ni**************@exisconsulting.com> wrote
in message news:O3**************@TK2MSFTNGP11.phx.gbl...

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

"Boaz Ben-Porat" <bo***@datapharm.dk> wrote in message
news:uu**************@TK2MSFTNGP09.phx.gbl...

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,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Boaz Ben-Porat" <bo***@datapharm.dk> wrote in message
news:uu**************@TK2MSFTNGP09.phx.gbl...

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

[M]

Anyone have a link to an example of this option? Sounds like exactly what I
need.
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote
in message news:OF**************@TK2MSFTNGP10.phx.gbl...

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.

[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.
--
Hope this help,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"M" <mi******@hotmail.com> wrote in message
news:NV********************@comcast.com...

Anyone have a link to an example of this option? Sounds like exactly what I need.
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote in message news:OF**************@TK2MSFTNGP10.phx.gbl...

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.