Accessing a listview box

I开发者_高级运维 am pretty new to programming in c#. I have a listview (ListViewProjects) box in ProjectListForm but I want to be able to access the items in the listview box in AddProjectForm. How can I access them? I was going to try to do something like this

ProjectListForm.ListViewProjects.Items.Clear

but when I type in ProjectListForm., ListViewProjects isn't an option.

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You can either set the list view's design time options to generate a public member (in control's properties, under Design set Modifiers to Public), or possibly better you could add a public property to ProjectListForm to expose either the list view or just the Items collection, eg:

public class ProjectListForm : Form
{
    ...
    public ListView.ListViewItemCollection ProjectsListViewItems
    {
        get { return ListViewProjects.Items; }
    }
}

The best way IMO is to write public methods in ProjectListForm that do what you're trying to achieve in AddProjectForm, such as ProjectListForm.ClearProjects(). That way you're not forcing AddProjectForm to depend on the implementation of ProjectListForm, say if you later want to change to a TreeView.

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You cannot achieve this way in C#. you need to create the instance of the object.

To do this you have to create the method in ProjectListForm and in that methos you have to call this.ListViewProjects.Items.Clear.

Now from the AddProjectForm you have to call this method of the running instance of ProjectListForm.

If you want to know more about how to make the call, then please give the flow about how do you show the AddProjectForm from the ProjectListForm.