Dynamic Control Example for 2.0?

[lucius]

Could someone provide a quick example for .NET 2.0 WinForms of how to
dynamically add a control "btnDynamic" to a form when button
"btnStandard" is clicked. I don't want to hardcode "btnDynamic" to the
form and make it simply visible, I don't want it to exist at runtime
until "btnStandard" is clicked, but when "btnDynamic" is created and
instantiated, it participates in the form's full event cycle and has
its own click event and etc.

Thanks.

 

[Stephany Young]

Private Sub btnStandard_Click(ByVal sender As Object, ByVal e As
EventArgs)

Dim _button As New Button

_button.Name = "btnDynamic"

_button.Text = "Whatever You Want"

_button.Size = <whatever you want>

_button.Location = <whatever you want>

AddHandler _button.Click, Addressof btnDynamic_Click

Me.Controls.Add(_button)

End Sub

 

[Linda Liu [MSFT]]

Hi Lucius,

To add a control on a form at run time, we need to add it to the Controls
collection of the form.

Stephany has provided a good VB.NET sample code. I will give you a C#
sample. It requires that you add a Button called 'btnStandard' on the form.

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
this.btnStandard.Click += new EventHandler(btnStandard_Click);
}

void btnStandard_Click(object sender, EventArgs e)
{
Button btn = new Button();
btn.Name = "btnDynamic";
btn.Text = "Dynamic Button";
btn.Location = new Point(10, 20);
btn.Click += new EventHandler(btn_Click);
this.Controls.Add(btn);
}

void btn_Click(object sender, EventArgs e)
{
MessageBox.Show("Hi, I am a dynamic button!");
}
}

Hope this helps.
If you have any question, please feel free to let me know.


Sincerely,
Linda Liu
Microsoft Online Community Support

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[Linda Liu [MSFT]]

Hi Lucius,

How about the problem now?

If you have any question, please feel free to let me know.

Thank you using our MSDN Managed Newsgroup Support Service!

Sincerely,
Linda Liu
Microsoft Online Community Support
This posting is provided "AS IS" with no warranties, and confers no rights.