I have a UserControl . Problem is when i dropped it into another form. It exposes all the properties and methods of user control which is a issue in my case.
I want to expose only that properties and methods which is in my CustomControl class not in UserControl class.
That's how it works.
When I do the same in Visual Studio, the properies of CustomControl in the suggestions drop down is bold and properties of UserControl is normal text so it is easy to differentiate.
Related
I have create my own usercontrol which is inherited from usercontrol. Is there a solution to hide all inherited properties of usercontrol class at design time in VS2010 property browser,
so that i can see only my custom properties in the property window in the VS2010 IDE at design time?
I'm using WPF usercontrol. Is there something like the controldesigner for usercontrols in winforms?
Thanks
Just the way this link says:
Create a property with the name of the property you don't want to be shown
Define a default getter and setter for it
Use Browsable and EditorBrowsable attributes to hide it
If I want to make a custom listbox by inheriting from the ListBox class and overriding some functions, should I be making a User Control or a Custom Control? I've read that I should be using a user control but when I add a user control, it comes with a panel control in the designer that I can't remove whereas custom control is blank and I can drag anything to it.
And when I try to change public partial class UserControl1 : UserControl to public partial class UserControl1 : ListBox for a User Control, VS doesn't add properties like AutoScaleMode and AutoScaleDimensions.
A UserControl is a container control. It doesn't "come with" a Panel - it is a sort of "panel" (but not a Panel - that's just an empty ContainerControl). So you can position them. A custom control is just derived from Control and you create and position things purely in code, though usually you wouldn't have subcontrols in a simple Control.
As for inheriting from ListBox, you have to add those properties yourself, unless I'm misunderstanding completely.
By the way, if you just need to draw custom elements in the ListBox, but not change functionality, consider owner-drawing the ListBox instead. There are many examples on the Internet.
I have created a custom control that inherits System.Windows.Forms.Panel, and adds a few extra properties. I then intend to create child classes that inherit this custom-panel class, and add content to them.
The custom-panel class will be passed to a "Wizard" framework (with back/next buttons) as the content for the various steps. I intend to make extensive use of this, creating 40-50 different pages for Wizards to handle various things in my project.
Question: Is there a way to view just the panel in the Designer, and modify its layout and design from there? I could code everything the hard way, but I really don't want to.
I did some searching and found this article, but that discusses creating a custom control and adding it to a library. I don't need to do this, I just want to view/edit the control in Designer directly, without adding it to a Form.
Obvious Answer to the rescue again.
Create a custom control, add the layout/split panel as desired, and change it's property to DockStyle.Fill.
This makes your custom control "behave" like the layout control, as long as you add all other controls to the layout control.
add first this name space
using System.ComponentModel.Design;
Apply the System.ComponentModel.DesignerAttribute attribute to the control as follows:
[Designer("System.Windows.Forms.Design.ParentControlDesigner, System.Design", typeof(IDesigner))]
public class UserControl1 : System.Windows.Forms.UserControl
{
...
}
now you can edit your custom user control in designer environment
From here I have created a BaseForm, then set all its BaseForm.Designer.cs private members to protected. Then has had a visually inherited/derived Form.
Now I am able to re-size or modify all the controls in the derived Form in design-time except the DataGridView. I am finding the DataGridView as locked in the derived Form, even though it is not locked in the BaseForm.
What can be the reason? What should I look/check for again?
I have a base form like this:
And I have derived a form like this:
It is a known problem..
https://connect.microsoft.com/VisualStudio/feedback/details/284335/designer-prevents-access-to-protected-datagridview-control-in-inherited-form
You can create a user control class and derive from DataGridView class
[Designer(typeof(System.Windows.Forms.Design.ControlDesigner))]
public class MyDataGridViewUserControl : DataGridView { }
I guess that VS designer locks controls that came from base classes. Because you have same initialization code you would change properties of grid inside of base class, that affects all other derived forms.
If you want to change properties of your grid, I would recommend to have separate grid for child form, since it should behave differently.
It seems an issue with some .NET controls.
There's a good writing here:
DataGridView locked on a inherited UserControl
I've come across the feature in Visual studio to auto-generate a subclass of a custom control using Add New Inherited User Control.
But I haven't found a clear description on how to e.g create a subclass of Button for instance. Apart from the actual way to do it, I'm also interested if VS provides helpful code-generation for this?
You just create your own class that inherits the Control, that you would like to subclass. For instance:
class BetterButton : Button { ...}
That is the easy part. Now you have the option to override various methods or properties, depending on what you want to achieve with your new Control. It could be anything, really. One thing I often see used is overriding OnPaint to get the control drawn in a custom way; and still getting the behaviour of the original control.
In terms of UserControls, I often see that a "parent" UserControl contains some UI logic and basic UI elements, while the subclassed controls are refinements of the parent for specific use.