I have created one MDI form & Want to inherit a already made Child form. So what I have to do to access all controls on my MDI in that child form. (I dont want to create a new inherited form, I have already one)
Your question is rather unclear but it appears that you are asking how to show a form as an MDI child. I assume that you have already set IsMdiContainer to true for your main form.
In order to show an MDI child you need to set the MdiParent property for the child form. Like this:
ChildForm myChild = new ChildForm();
myChild.MdiParent = this;//this is the main form, the MDI parent
myChild.Show();
Related
Is it possible to control the parent form from a modal child form?
My only idea is to close the parent form and show child form via ChildForm.Show() and not ChildForm.ShowDialog(parentform), can I control parent form from modally displayed child form?
How to refresh a parent form automatically upon saving the update on the child form?
You can access the parent (Owner) form by using Owner property. If you show the dialog using:
childForm.ShowDialog(this);
(this will be the form from where you are showing the dialog)
then in the dialog:
this.Owner.BackColor=System.Drawing.Color.Coral;
This will change the background colour of the parent form immediately.
ParentForm is available in the context of MDIForm context.
Well this maybe is simple but I cannot nail it.
I have a win forms application with a from as Mdi Container with n mdi childs.
How to set ActiveMdiChild ?
For example i have 4 mdi childs (0,1,2,3) and i want to pass the appropriate data to each one...but only the active gets the data..
To activate a specific MDI child, you can use ActivateMdiChild method of the MDI parent and pass the child to activate. For example:
this.ActivateMdiChild(this.MdiChildren[0]);
ActivateMdiChild (Form)
Activates the MDI child of a form.
If the form parameter is already the active MDI child form, then the
ActivateMdiChild method simply returns. If form is not null, then it
is set to be the active MDI child form. Whether the form parameter is
null or not, ActivateMdiChild raises the MdiChildActivate event.
You can do this:
foreach (Form frm in this.MdiChildren)
{
if (frm is Form1)
{
Form frmChild = this.ActiveMdiChild;
frmChild .Show();
}
}
If the child have different form names, you can just have if statement to check if this is the form you are checking then set it as your acitvemdichild.
I have shown a new form in button click on parent form like below,
Here the background parent form gets disabled when a new child form is activated.
Is there any available options to show the child form without disabling the parent form?
Regards,
The Show function shows the form in a non modal form. This means that you can click on the parent form.
ShowDialog shows the form modally, meaning you cannot go to the parent form
Application.Run() runs the main parent form, and makes that form the main form. Application.Run() is usually found in main.
If it is fully disabled (no interaction possible), you are using .ShowDialog() on the child form instead of .Show(). If you use .Show() you will be able to use both forms
Example:
ChildForm childForm = new ChildForm();
childForm.Show();
after you open the new form and call this.Activate(); it will refocus on the parent window, but this will cause it to loose focus for a fraction of a second
I have an MDIChild that has a toolstrip. When I open the window the toolstrip is displayed alongside the toolstrip of the MDIParent. The searching I have done suggests that this is normal behaviour unless the child is opened modally. Can I not stop this from happening and fix the toolstrip to the window it is meant to be displayed on?
This is the MDI Parent
This is the MDI Child
This is what happens when I open the child and what I want to stop happening.
Set the AllowMerge Property of the MenuStrip of the Child form to false.
From MSDN
Use the AllowMerge property to enable multiple-document interface (MDI) children to combine their respective menus in the MDI parent.
When this property is set the true, the menus will combine (just like in your case). When false, they won't
I got a strange problem. My mdi child form has 2 close buttons and 2 maximized buttons.
A screenshot of the problem:
I create the mdi child like this:
summaryForm.MdiParent = ContainerForm;
summaryForm.WindowState = FormWindowState.Maximized;
summaryForm.Show();
If I get rid of "summaryForm.WindowState = FormWindowState.Maximized;", the window style is correct. But I hope to make the mdi child form maximized when created.
It's a bug in Winforms. This will happen when the child is created by the parent's constructor. Move it to the Load event.
try this:
childform.ControlBox = false;