Once again, DisableAlign and EnableAlign to the rescue: procedure TForm1.FormCreate(Sender: TObject); var I: Integer; P: TPanel; begin DisableAlign; try for I := 0 to 4 do begin P := TPanel.Create(Self); P.Caption := IntToStr(I); P.Align := alTop; P.Parent := Self; end; finally EnableAlign; end; end; Explanation: When alignment is enabled, every single addition of a control … Read more
I would recommend that you don’t. Do you really want to have a class that is dependent on how the text editing is implemented in the form, or do you want a mechanism allowing you to get and set the text? I would suggest the latter. So in your form, create a property that wraps … Read more
The answer is to not use a UserControl to do it. Create a class that extends ContentControl public class MyFunkyControl : ContentControl { public static readonly DependencyProperty HeadingProperty = DependencyProperty.Register(“Heading”, typeof(string), typeof(MyFunkyControl), new PropertyMetadata(HeadingChanged)); private static void HeadingChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { ((MyFunkyControl) d).Heading = e.NewValue as string; } public string Heading { get; set; … Read more
You can use the form’s Controls.Find() method to retrieve a reference back: var matches = this.Controls.Find(“button2”, true); Beware that this returns an array, the Name property of a control can be ambiguous, there is no mechanism that ensures that a control has a unique name. You’ll have to enforce that yourself.
This: <asp:Button runat=”server” id=”Button1″ visible=”<%= true %>” /> Does not evaluate to this: <asp:Button runat=”server” id=”Button1″ visible=”true” /> <%= %> outputs directly to the response stream, and the asp markup is not part of the response stream. Its a mistake to assume the <%= %> operators are performing any kind of preprocessing on the asp … Read more
You can access the controls by name via the Form.Controls property, for instance: Dim text1 As TextBox = CType(Me.Controls(“text_1”), TextBox)
Actually, the accepted answer is unnecessarily complicated. If you set the label to AutoSize, it will automatically grow with whatever text you put in it. (This includes vertical growth.) If you want to make it word wrap at a particular width, you can set the MaximumSize property. myLabel.MaximumSize = new Size(100, 0); myLabel.AutoSize = true; … Read more
Making them Singleton is not a completely bad idea, but personally I would not prefer to do it that way. I’d rather pass the reference of one to another form. Here’s an example. Form1 triggers Form2 to open. Form2 has overloaded constructor which takes calling form as argument and provides its reference to Form2 members. … Read more
Instead of making the control public, you can create a property that controls its visibility: public bool ControlIsVisible { get { return control.Visible; } set { control.Visible = value; } } This creates a proper accessor to that control that won’t expose the control’s whole set of properties.
The code for adding a button at runtime and then to add events is truly as simple as it is difficult to find out. I can say that because I have spent more time on this perplexity and got irritated more than in anything else I ever programmed. Create a Userform and put in the … Read more