Property change does not refresh custom control

[R.A.F.]

Hi,

I have a custom control in which i have a property based on
CollectionBase class.

like the following one :
//------- XGrid.cs file --------------//
[Category("Behav ior"),
Browsable(true) ,
Description("Co lumn Collection"),
DesignerSeriali zationVisibilit y(DesignerSeria lizationVisibil ity.Content)]
public ColumnsCollecti on Columns
{
get
{
if (this.m_Columns == null)
{
this.m_Columns = new ColumnsCollecti on(this);
}
return this.m_Columns;
}
}
protected internal virtual void OnColumnAdded(C olumnsCollectio nEventArgs e)
{
this.Invalidate (); // <- this does not refresh the control on design
time :-(

if (ColumnAdded != null)
{
ColumnAdded(thi s, e);
}
}

//------- ColumnsCollecti on.cs file --------------//

this collection (named Columns) is as the following :

public class ColumnsCollecti on : CollectionBase
{
....
public ColumnsCollecti on(XGrid owner): base()
{
if (owner == null)
{
throw new ArgumentNullExc eption("owner") ;
}

this.m_owner = owner;
}

public void Add(Column column)
{
if (column == null)
{
throw new System.Argument NullException(" Column is null");
}
int index = this.List.Add(c olumn);
this.Recalculat eTotalWidth();
this.OnColumnAd ded(new ColumnEventArgs (column, this.IndexOf(co lumn),
ColumnEventType .ColumnAdded, null));
}
....
protected virtual void OnColumnAdded(C olumnEventArgs e)
{
this.m_owner.On ColumnAdded(e);
}
....
}

unfortunatelly, my control is not refresh automatically when i add a new
column to the Columns Property.
i have the same issue with removing column.

any idea ?
thanks a lot,

RAF

[=?Utf-8?B?SHVzYW0gQWwtQScnYXJhag==?=]

hello,
This may help
http://www.vbdotnetheaven.com/Upload...toRefresh.aspx

regards,
Husam Al-A'araj
www.aaraj.net

"R.A.F." wrote:

Hi,

I have a custom control in which i have a property based on
CollectionBase class.

like the following one :
//------- XGrid.cs file --------------//
[Category("Behav ior"),
Browsable(true) ,
Description("Co lumn Collection"),
DesignerSeriali zationVisibilit y(DesignerSeria lizationVisibil ity.Content)]
public ColumnsCollecti on Columns
{
get
{
if (this.m_Columns == null)
{
this.m_Columns = new ColumnsCollecti on(this);
}
return this.m_Columns;
}
}
protected internal virtual void OnColumnAdded(C olumnsCollectio nEventArgs e)
{
this.Invalidate (); // <- this does not refresh the control on design
time :-(

if (ColumnAdded != null)
{
ColumnAdded(thi s, e);
}
}

//------- ColumnsCollecti on.cs file --------------//

this collection (named Columns) is as the following :

public class ColumnsCollecti on : CollectionBase
{
....
public ColumnsCollecti on(XGrid owner): base()
{
if (owner == null)
{
throw new ArgumentNullExc eption("owner") ;
}

this.m_owner = owner;
}

public void Add(Column column)
{
if (column == null)
{
throw new System.Argument NullException(" Column is null");
}
int index = this.List.Add(c olumn);
this.Recalculat eTotalWidth();
this.OnColumnAd ded(new ColumnEventArgs (column, this.IndexOf(co lumn),
ColumnEventType .ColumnAdded, null));
}
....
protected virtual void OnColumnAdded(C olumnEventArgs e)
{
this.m_owner.On ColumnAdded(e);
}
....
}

unfortunatelly, my control is not refresh automatically when i add a new
column to the Columns Property.
i have the same issue with removing column.

any idea ?
thanks a lot,

RAF

[R.A.F.]

Hi,

Unfortunatelly it does not help me.

Basically my problem is when i change this COlumns property, my control
does not update/refresh to show those changes... but if i change another
property, it refresh perfectly the control and shows changes performed
by Columns property :-(

so something must be wrong with this Columns property refreshing....b ut
what ?

RAF

Husam Al-A''araj wrote:

hello,
This may help
http://www.vbdotnetheaven.com/Upload...toRefresh.aspx

regards,
Husam Al-A'araj
www.aaraj.net

"R.A.F." wrote:

>Hi,

I have a custom control in which i have a property based on
CollectionBa se class.

like the following one :
//------- XGrid.cs file --------------//
[Category("Behav ior"),
Browsable(true) ,
Description("Co lumn Collection"),
DesignerSerial izationVisibili ty(DesignerSeri alizationVisibi lity.Content)]
public ColumnsCollecti on Columns
{
get
{
if (this.m_Columns == null)
{
this.m_Columns = new ColumnsCollecti on(this);
}
return this.m_Columns;
}
}
protected internal virtual void OnColumnAdded(C olumnsCollectio nEventArgs e)
{
this.Invalidate (); // <- this does not refresh the control on design
time :-(

if (ColumnAdded != null)
{
ColumnAdded(thi s, e);
}
}

//------- ColumnsCollecti on.cs file --------------//

this collection (named Columns) is as the following :

public class ColumnsCollecti on : CollectionBase
{
....
public ColumnsCollecti on(XGrid owner): base()
{
if (owner == null)
{
throw new ArgumentNullExc eption("owner") ;
}

this.m_owner = owner;
}

public void Add(Column column)
{
if (column == null)
{
throw new System.Argument NullException(" Column is null");
}
int index = this.List.Add(c olumn);
this.Recalculat eTotalWidth();
this.OnColumnAd ded(new ColumnEventArgs (column, this.IndexOf(co lumn),
ColumnEventTyp e.ColumnAdded, null));
}
....
protected virtual void OnColumnAdded(C olumnEventArgs e)
{
this.m_owner.On ColumnAdded(e);
}
....
}

unfortunatelly , my control is not refresh automatically when i add a new
column to the Columns Property.
i have the same issue with removing column.

any idea ?
thanks a lot,

RAF

[R.A.F.]

ok, i finally found how to refresh my control when a collection property
is updated and i do not see it as really LOGICAL. :-(

basically, i needed to create a special property editor for this
collection property and into the overridden function EditValue, i placed
control.refresh ();

this force my control to redraw when i add or remove a column from this
collection property.

Why a simple invalidate() into the add or remove functions (from my
collection class) does not work ? this is a mystery for me.

Any idea ?

RAF

R.A.F. wrote:

Hi,

Unfortunatelly it does not help me.

Basically my problem is when i change this COlumns property, my control
does not update/refresh to show those changes... but if i change another
property, it refresh perfectly the control and shows changes performed
by Columns property :-(

so something must be wrong with this Columns property refreshing....b ut
what ?

RAF

Husam Al-A''araj wrote:

>hello,
This may help
http://www.vbdotnetheaven.com/Upload...toRefresh.aspx
regards,
Husam Al-A'araj
www.aaraj.net

"R.A.F." wrote:

>>Hi,

I have a custom control in which i have a property based on
CollectionBas e class.

like the following one :
//------- XGrid.cs file --------------//
[Category("Behav ior"),
Browsable(true) ,
Description("Co lumn Collection"),
DesignerSeria lizationVisibil ity(DesignerSer ializationVisib ility.Content)]

public ColumnsCollecti on Columns
{
get
{
if (this.m_Columns == null)
{
this.m_Columns = new ColumnsCollecti on(this);
}
return this.m_Columns;
}
}
protected internal virtual void
OnColumnAdded (ColumnsCollect ionEventArgs e)
{
this.Invalidate (); // <- this does not refresh the control on
design time :-(

if (ColumnAdded != null)
{
ColumnAdded(thi s, e);
}
}

//------- ColumnsCollecti on.cs file --------------//

this collection (named Columns) is as the following :

public class ColumnsCollecti on : CollectionBase
{
....
public ColumnsCollecti on(XGrid owner): base()
{
if (owner == null)
{
throw new ArgumentNullExc eption("owner") ;
}

this.m_owner = owner;
}

public void Add(Column column)
{
if (column == null)
{
throw new System.Argument NullException(" Column is null");
}
int index = this.List.Add(c olumn);
this.Recalculat eTotalWidth();
this.OnColumnAd ded(new ColumnEventArgs (column,
this.IndexOf( column), ColumnEventType .ColumnAdded, null));
}
....
protected virtual void OnColumnAdded(C olumnEventArgs e)
{
this.m_owner.On ColumnAdded(e);
}
....
}

unfortunatell y, my control is not refresh automatically when i add a
new column to the Columns Property.
i have the same issue with removing column.

any idea ?
thanks a lot,

RAF