So I am making a small Program where I have a UserControl inside a tab control. And i am trying to find out how to go back up a level from inside the user control to add tabs to the tab control.
Okay Thanks for the comment, I figured it out, the link posted by CarbineCoder had the following code
Form parentForm = (this.Parent as Form);
This is the code i was trying to use but what was actually needed was
Form parentForm = (this.Parent.Parent as Form);
Related
so I have a Homepage on one of the TabPages on winform TabControl. I have a button, that adds a new tab using this Tabs.TabPages.Add("Homepage");
But TabPages.Add() just adds a new blank page, how would i clone my HomePage on the new tab? For instance, if my homepage has a button "Click me", when i open a new tab, I want it to have the same button "Click me" linked to the same event "ClickMe_click". Like a Chrome Tab control. I couldn't find any event or method built in for TabControl on msdn, unless i missed it.
Any help or hint or suggestion would be appreciated. Thanks.
You can't clone a tabpage so easily. One can try but the recommended way is:
Create a UserControl and add all the controls you want on your page. Make it Dock=Fill and add any code that connects the controls. You can layout as freely as you would in a form or a tabpage..
Whenever you want another page of this type, add a new tabpage and add an instance of the UserControl to its Controls collection.
Note: All controls on your UserControl by default are private. This is not really different from placing them on the tabpage directly. But now they are private members of the UC class, so your form and its code can't access them.
Looks like a problem when you're new to it. But if you look at it right, it is a good oportunity to create a leaner & cleaner interface.
Solution 1: Change the control modifiers to public as needed
Solution 2: Add properties to expose those data you really want to expose.
Also note: You can do all layout but can do so only in the UC designer. After adding to a form or tabpage there will be no embedded designer..
good sirs!
I've been messing around with the next scenario:
First, I have a webform structured as a WebForm containing a DevExpress ASPXPopUpControl and some other controls. Inside the PopUpControl there is a UserControl (lets call it ucA) containing some other controls and a UserControl (called ucB) that contains a cursed ASPxHtmlEditor (added because it's a new requirement).
When the user hits a button on main webform I show the PopUp (originally was a jQuery dialog but since HTMLEditor messes up with jQuery I've been forced to break the standard and use the popup) which contains the ucA. The user fills some fields in ucA and hit the save button. After user hits, I save some dataz and at this point I need to recover a textbox value placed in the webform.
I'm using Parent.FindControl["myTextBox"] but it considers the popupcontrol as parent. When I was using jQuery (before implementing the editor) it worked like a charm.
I feel it's something trivial but thrust me when I say that this stole many hours of research.
Thanks in advance.
EDIT I forgot to mention that I want to look for another UserControl at main webform. This uc its used to display core messages to the user so when he hits the save button, save happens, popup is closed and i look (Parent.FindControl("myUCMessageBoard")) from the ucA for the usercontrol to display a "Transaction complete" message.
I'm thinking you're going to have to do something a little hacky, by using ViewState. If I understand correctly, you are trying to get access to a TextBox's Text on the Web Form, from a UserControl nested within a PopupControl (so you can't traverse all the way up to Web Form Level).
So, what I'd do at some point in the process is store the text in a ViewState variable that you can access from the User Control. It's not optimal, but since you're already hacking to get it to work, what's a little more hacking?
You should expose all controls from ucA as properties, then look for the control inside the DevxPopup the same way you doing. Given that all the controls that you need at the ucA has properties to access them, you could do all the logic you need!
Example:
public ucA : UserControl
{
public string myTextBoxText
{
get
{
return ((TextBox)Controls.FindControl("myTextBox")).Text;
}
}
/*And lot of controls*/
}
Then you looking for the popup at the Form
var ucA = (UcA)Form.Controls.FindControl("myPopup").Controls.FindControl("myucA");
ucA.myTextBoxText = /*Do stuff here with the text*/
Hopes this help you!
I have a C# Forms tab application. Each TabPage has a menu on the left (Outlook style navigation panel), and a Panel on the right for content.
If I want the content panel for tab page 0, how would I go about fetching it? I'm a bit stumped because I don't know how to index into the controls collection on a tab page. The following is underlined in red, so I believe its wrong.
Panel panel = tabControl.TabPages[0].Controls["Panel"];
EDIT: remove Window in Panel sub question. It will be moved to a separate question.
Sorry about the beginner questions. I'm a C/C++ guy with lots of MFC time, and C# UI is a bit frustrating at the moment.
foreach (Control control in tabControl1.TabPages[0].Controls)
{
// if (control.Name == "panel1")
}
You can always call this recursively on control.Controls to find a control in any hierarchy. control.Name can be used to find your specific control.
You can't show a Form, inside a Panel. You could create Custom Control where you can add your functionality and add that control to a Panel.
in order to create a new form for example you need to create a variable of what ever form that it is you want to create.
example
Form2 frm2 = new Form2();
frm2.Show();
if you want to show that form in the panel then the panel would be the Owner keep in mind the difference between Owner and Parent
please paste what ever code you have so far and we can suggest the necessary changes
Finally, how does one display a Window in a Panel? - you don't want to do that. If you want a window and a panel to share a piece of UI functionality, create a user control with all the the functionality and then you can place it in a form or in a panel.
A possibility to encapsulate complex UI content is to create a UserControl. This way you can create a reusable piece of complex UI you can basically add as a "blob" inside a form.
The reason why
Panel panel = tabControl.TabPages[0].Controls["Panel"];
is underlined red is because the Controls collection returns a Control which might be a Panel but also might be something else. So you need to cast it:
Panel panel = tabControl.TabPages[0].Controls["Panel"] as Panel;
if (panel != null)
{
// got a panel here so do something
}
Also: MSDN has some good resources - you should make use of it.
i'm new to windows application.can anybody help me.here is my doubt.im having one parent form and it has four menu items. when i click any of one menu item ,it should display another form within that parent form itself. how to do it?
Thanks in advance
According to details you ve provided it seems that you need to use MDI Forms concept in your app. It s very easy to learn and refer to the following links:
http://www.codeproject.com/KB/cs/mdiformstutorial.aspx
How to open a form within a form?
Just include the code in the 2nd link within your menuitem_Click event...
Hope this helps...
There are several ways you could do it.
One simple way for a newcomer is to add the form to the parent form in the designer. Set the visible Property to false (in the properties) so it will not be shown at first when your program is run.
Then you can set the visible property to true when you handle the menu item clicking.
There are code ways to do it too at runtime etc.
Hers an article with stuff about adding controls (and implicitly child forms) at runtime.
Inside your main form, add a panel and then use the below method to display the child form.
private void InitChildForm(Form childForm, Panel parent)
{
childForm.TopLevel = false;
childForm.Parent = parent;
childForm.Dock = DockStyle.Fill;
childForm.Show();
parent.Parent = this;
parent.Dock = DockStyle.Fill;
}
I am using a winform application c#. In the application we are using Lots of UserControls and Forms.
I have a parent form, where I am using UserControl as a MainDashBoard. But for other business requirements using Forms as well. On the userControl there is a button called LoadProperties, which will load another form displaying some properties of some object.
What I want to know is that how can I find out that currently active control is UserControl or Form. Because when I am pressing the button and saying
Form1 form = new Form1();
form.MDIParent= this;
form.show();
It is loading the form, but the this.ActiveControl is giving me the button as an active control not the form.
I want to get the currently loaded form how can I do this.
Can anybody help me out...here.
Regards
Shax.
Every form has an ActiveControl, the control that will get the focus when the form is activated. To get the active form you should use the static Form.ActiveForm property.
Just keep reference to all opened forms.
Sorry I dont quite understand.
For finding out which MDI child is active use:
Form activeChild = this.ActiveMdiChild;
If you need to check what type of object an object is you can use:
if([variable] is Form)
{
}
if([variable] is Button)
{
}