dynamically adding user controls

[npaulus]

Hi,
I am trying to dynamically add user controls on to my web form but for
some reason my form isnt displaying the user control.

form1.cs:
using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace WorldClock
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows. Forms.Form
{
private Point ptr;
private WorldClock.User Control1[] _userctrls;
/// <summary>
/// Required designer variable.
/// </summary>
private System.Componen tModel.Containe r components = null;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeCompo nent();

//
// TODO: Add any constructor code after InitializeCompo nent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeCompo nent()
{
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(704, 334);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.Form1 _Load);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run (new Form1());
}

private void Form1_Load(obje ct sender, System.EventArg s e)
{
ptr = new Point(0,0);

Hashtable hash;
hash =
(Hashtable)Syst em.Configuratio n.Configuration Settings.GetCon fig("Regions");
IDictionaryEnum erator en = hash.GetEnumera tor();
_userctrls = new UserControl1[hash.Count];
int i=0;
while(en.MoveNe xt())
{
_userctrls[i] = new
UserControl1(en .Key.ToString() ,en.Value.ToStr ing());
//_userctrls[i].Location = ptr;
//userctrls[i].Name = "usc" + i.ToString();
//ptr.Offset(_use rctrls[i].Width,0);
//_userctrls[i].Visible = true;

this.Controls.A dd(this._userct rls[i]);
}

}
}
}

usercontrol1.cs :
using System;
using System.Collecti ons;
using System.Componen tModel;
using System.Drawing;
using System.Data;
using System.Windows. Forms;

namespace WorldClock
{
/// <summary>
/// Summary description for UserControl1.
/// </summary>
public class UserControl1 : System.Windows. Forms.UserContr ol
{
private string city="";
private string minsfromMelbour ne="";

private System.Windows. Forms.Label label1;
private System.Windows. Forms.Label label2;
private System.Windows. Forms.Label label3;
/// <summary>
/// Required designer variable.
/// </summary>
private System.Componen tModel.Containe r components = null;

public UserControl1()
{
// This call is required by the Windows.Forms Form Designer.
InitializeCompo nent();

// TODO: Add any initialization after the InitializeCompo nent call
}

public UserControl1(st ring City, string MinsFromMelbour ne)
{
city = City;
minsfromMelbour ne = MinsFromMelbour ne;
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeCompo nent()
{
this.label1 = new System.Windows. Forms.Label();
this.label2 = new System.Windows. Forms.Label();
this.label3 = new System.Windows. Forms.Label();
this.SuspendLay out();
//
// label1
//
this.label1.Loc ation = new System.Drawing. Point(24, 24);
this.label1.Nam e = "label1";
this.label1.Tab Index = 0;
this.label1.Tex t = "label1";
//
// label2
//
this.label2.Loc ation = new System.Drawing. Point(24, 64);
this.label2.Nam e = "label2";
this.label2.Tab Index = 1;
this.label2.Tex t = "label2";
//
// label3
//
this.label3.Loc ation = new System.Drawing. Point(24, 104);
this.label3.Nam e = "label3";
this.label3.Tab Index = 2;
this.label3.Tex t = "label3";
//
// UserControl1
//
this.Controls.A dd(this.label3) ;
this.Controls.A dd(this.label2) ;
this.Controls.A dd(this.label1) ;
this.Name = "UserContro l1";
this.Load += new System.EventHan dler(this.UserC ontrol1_Load);
this.ResumeLayo ut(false);

}
#endregion

private void UserControl1_Lo ad(object sender, System.EventArg s e)
{
label1.Text = city;
TimeSpan ts = new TimeSpan(0,0,in t.Parse(minsfro mMelbourne),0,0 );
DateTime thisday = new DateTime();
thisday = DateTime.Now.Ad dMinutes(Double .Parse(minsfrom Melbourne));
label2.Text = thisday.ToStrin g();
label3.Text = thisday.DayOfWe ek.ToString();
}
}
}

if someone can help please do.

thanking you,
NJ

[Peter Bromberg [C# MVP]]

You need to add a call to "InitializeComp onent" in your custom usercontrol
constructor.
Peter

--
Co-founder, Eggheadcafe.com developer portal:
http://www.eggheadcafe.com
UnBlog:
http://petesbloggerama.blogspot.com


"np*****@hotmai l.com" wrote:

Hi,
I am trying to dynamically add user controls on to my web form but for
some reason my form isnt displaying the user control.

form1.cs:
using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace WorldClock
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows. Forms.Form
{
private Point ptr;
private WorldClock.User Control1[] _userctrls;
/// <summary>
/// Required designer variable.
/// </summary>
private System.Componen tModel.Containe r components = null;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeCompo nent();

//
// TODO: Add any constructor code after InitializeCompo nent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeCompo nent()
{
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(704, 334);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.Form1 _Load);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run (new Form1());
}

private void Form1_Load(obje ct sender, System.EventArg s e)
{
ptr = new Point(0,0);

Hashtable hash;
hash =
(Hashtable)Syst em.Configuratio n.Configuration Settings.GetCon fig("Regions");
IDictionaryEnum erator en = hash.GetEnumera tor();
_userctrls = new UserControl1[hash.Count];
int i=0;
while(en.MoveNe xt())
{
_userctrls[i] = new
UserControl1(en .Key.ToString() ,en.Value.ToStr ing());
//_userctrls[i].Location = ptr;
//userctrls[i].Name = "usc" + i.ToString();
//ptr.Offset(_use rctrls[i].Width,0);
//_userctrls[i].Visible = true;

this.Controls.A dd(this._userct rls[i]);
}

}
}
}

usercontrol1.cs :
using System;
using System.Collecti ons;
using System.Componen tModel;
using System.Drawing;
using System.Data;
using System.Windows. Forms;

namespace WorldClock
{
/// <summary>
/// Summary description for UserControl1.
/// </summary>
public class UserControl1 : System.Windows. Forms.UserContr ol
{
private string city="";
private string minsfromMelbour ne="";

private System.Windows. Forms.Label label1;
private System.Windows. Forms.Label label2;
private System.Windows. Forms.Label label3;
/// <summary>
/// Required designer variable.
/// </summary>
private System.Componen tModel.Containe r components = null;

public UserControl1()
{
// This call is required by the Windows.Forms Form Designer.
InitializeCompo nent();

// TODO: Add any initialization after the InitializeCompo nent call
}

public UserControl1(st ring City, string MinsFromMelbour ne)
{
city = City;
minsfromMelbour ne = MinsFromMelbour ne;
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeCompo nent()
{
this.label1 = new System.Windows. Forms.Label();
this.label2 = new System.Windows. Forms.Label();
this.label3 = new System.Windows. Forms.Label();
this.SuspendLay out();
//
// label1
//
this.label1.Loc ation = new System.Drawing. Point(24, 24);
this.label1.Nam e = "label1";
this.label1.Tab Index = 0;
this.label1.Tex t = "label1";
//
// label2
//
this.label2.Loc ation = new System.Drawing. Point(24, 64);
this.label2.Nam e = "label2";
this.label2.Tab Index = 1;
this.label2.Tex t = "label2";
//
// label3
//
this.label3.Loc ation = new System.Drawing. Point(24, 104);
this.label3.Nam e = "label3";
this.label3.Tab Index = 2;
this.label3.Tex t = "label3";
//
// UserControl1
//
this.Controls.A dd(this.label3) ;
this.Controls.A dd(this.label2) ;
this.Controls.A dd(this.label1) ;
this.Name = "UserContro l1";
this.Load += new System.EventHan dler(this.UserC ontrol1_Load);
this.ResumeLayo ut(false);

}
#endregion

private void UserControl1_Lo ad(object sender, System.EventArg s e)
{
label1.Text = city;
TimeSpan ts = new TimeSpan(0,0,in t.Parse(minsfro mMelbourne),0,0 );
DateTime thisday = new DateTime();
thisday = DateTime.Now.Ad dMinutes(Double .Parse(minsfrom Melbourne));
label2.Text = thisday.ToStrin g();
label3.Text = thisday.DayOfWe ek.ToString();
}
}
}

if someone can help please do.

thanking you,
NJ