Develop Reference

MenuItem AutoClose = false on dynamically generated Toolstrip Menu

So, following this question, I have been attempting to deal with a way to stop a drop down menu from closing when I click on an item.
In the linked question, one such answer suggested that I set the AutoClose property to false. I did so, and this did achieve what I asked. However, the way I implemented it means that the Drop Down menu is forced open.
Form Code:
public void ToolStripMenuItem_Click(object sender, EventArgs e)
{
ToolStripMenuItem item = sender as ToolStripMenuItem;
if (item != null)
item.Checked = !item.Checked;
item.DropDown.AutoClose = false;
}
I know why this is - the implementation means that there is no way to allow the AutoClose to be set to true. However, since the menuItems are dynamically generated in a different class, I don't have any events or objects to refer to.
This code copies the menu structure from the Main Form, and copies it across to recreate it in the "Profile View" (to set what users can/cannot see).
Controller Code:
private void PopulateProfileView(User_AccessProfilesView view, Menu_View mainMenu)
{
// Disabled Items are not able to be set, becasue they are either always visible for every user,
// or only visible to specific users (Administrator)
List<string> disabledMenuItems = new List<string>();
List<string> disabledSubMenuItems = new List<string>();
bool error = false;
bool subError = false;
_groupDictionary = new Dictionary<string, List<string>>();
// Populate the disallowed Menu Items from the Main Menu,
// and then add the items specific to the Profile View
disabledMenuItems.Add("File");
disabledMenuItems.Add("Administrator");
disabledMenuItems.Add("Help");
disabledMenuItems.Add("Te&rminations");
disabledMenuItems.AddRange(mainMenu.disallowedMenuItems);
// Populate the disallowed Sub Menu Items from the Main Menu,
// and then add the items specific to the Profile View
disabledSubMenuItems.Add("View All");
disabledSubMenuItems.AddRange(mainMenu.disallowedSubItems);
foreach (ToolStripMenuItem item in mainMenu.mainMenuStrip.Items)
{
ToolStripMenuItem menuItem = new ToolStripMenuItem(item.Text);
if (error == false)
{
// Add to the menu bar
view.menuStrip.Items.Add(menuItem);
menuItem.Click += new EventHandler(view.ToolStripMenuItem_Click);
foreach (ToolStripItem dropItem in item.DropDownItems)
{
if (dropItem is ToolStripMenuItem)
{
ToolStripMenuItem menuDropItem = new ToolStripMenuItem(dropItem.Text);
// Same concerns as above with regards to doing a substring check
// to decide if menu items should be excluded or not.
foreach (string s1 in disabledSubMenuItems)
{
if (!menuDropItem.Text.Contains(s1))
{
subError = false;
}
else
{
subError = true;
break;
}
}
if (!subError)
{
menuItem.DropDownItems.Add(menuDropItem);
menuDropItem.Click += new EventHandler(view.ToolStripMenuItem_Click);
}
}
else if (dropItem is ToolStripSeparator)
{ menuItem.DropDownItems.Add(new ToolStripSeparator()); }
}
How do I implement the AutoClose property correctly so that if I click on a menu item, the menu won't close, but if I click on the menu header, or move the mouse away from the menu, or select another menu (either by click or mouse over), the menu does Close?
Apologies if this is a simple issue - I have been out of the game for roughly a year, and have to jump back into this and I am having a little bit of an issue following everything properly.

To solve the problem you can follow these steps:
You should determine which menu items should keep open even after clicking on them. I'll use "keepopen" as value of Tag property for those items that should be kept open after clicking.
For the menu item which contains those items, you need to get DropDown property and and handle its ItemClicked event and in the ItemClicked event, you should check if the item which is clicked is one of those "keepopen" items, then set DropDown.AutoClose of the container menu item to false. For other items, set it to true. It will prevent closing those "keepopen" item when clicking, while let other items close by click.
You should handle CheckedChanged event of those "keepopen" items and set DropDown.AutoClose to true. While using the Click event handler we prevented the items from closing, here we enable the closing again, so if the user click outside of the menu, it will close.
Then this would be the result, look at mouse clicks:
Example
As an example, create an empty form and handle its Load event and use following code. When you click on SubMenu1, SubMenu2 or SubMenu3, they will just get checked or unchecked without closing the menu. But of you click outside the menu or on SubMenu4, it will close the menu.
const string keepopen = "keepopen";
private void Form1_Load(object sender, EventArgs e)
{
var menuStrip = new MenuStrip() { Dock = DockStyle.Top };
this.Controls.Add(menuStrip);
var menu1 = (ToolStripMenuItem)menuStrip.Items.Add("Menu1");
menu1.DropDownItems.Add(new ToolStripMenuItem("Submenu1")
{ Tag = keepopen, CheckOnClick = true });
menu1.DropDownItems.Add(new ToolStripMenuItem("Submenu2")
{ Tag = keepopen, CheckOnClick = true });
menu1.DropDownItems.Add(new ToolStripMenuItem("Submenu3")
{ Tag = keepopen, CheckOnClick = true });
menu1.DropDownItems.Add("-");
menu1.DropDownItems.Add(new ToolStripMenuItem("Submenu4"));
menu1.DropDown.ItemClicked += (obj, args) =>
{
if (args.ClickedItem.Tag == keepopen)
menu1.DropDown.AutoClose = false;
else
menu1.DropDown.AutoClose = true;
};
menu1.DropDownItems.OfType<ToolStripMenuItem>()
.Where(x => x.Tag == keepopen)
.ToList().ForEach(x =>
{
x.CheckedChanged += (obj, args) =>
{
menu1.DropDown.AutoClose = true;
};
});
}

Adding EventHandler for dynamically added control

I've got a problem with adding some controls into a Panel(which gets "PopUpped" by a ModalPopupExtender) and add a CheckedChanged-EventHandler.
First of all, when user clicks on a button, this happens inside the CreatePanelChoose() function:
foreach (ListItem item in lbSupplier.Items)
{
string cbid = "cb" + i;
CheckBox cb = new CheckBox();
cb.ID = cbid;
cb.Text = item.Text;
cb.AutoPostBack = true;
AjaxControlToolkit.MutuallyExclusiveCheckBoxExtender mecbe = new AjaxControlToolkit.MutuallyExclusiveCheckBoxExtender();
mecbe.ID = "mecbe" + cbid;
mecbe.TargetControlID = cbid;
mecbe.Key = "SupplierKEY";
mecbe.BehaviorID = mecbe.ID + i;
//Also adding a Label
phModalPopupExtender.Controls.Add(new LiteralControl("</br>")); //phModalPopupExtender is a PlaceHolder
phModalPopupExtender.Controls.Add(cb);
phModalPopupExtender.Controls.Add(mecbe);
phModalPopupExtender.Controls.Add(lbl);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = cbid;
trigger.EventName = "CheckedChanged";
UpdatePanelMatrix.Triggers.Add(trigger);
i++;
ButtonOK.Enabled = false;
}
lblText.Text = "Select one Supplier";
ModalPopupExtender1.Show();
Then i add the EventHandler in the Page_LoadComplete:
As you can see it also gets asigned to the control (I think).
The ModalPopup shows up correctly, but if I click one of the CheckBox, then it just closes it without going into cb_CheckedChanged, but it makes a Async postback ...
If I check Request.Form["__ASYNCPOST"] its true and Request.Form["__EVENTTARGET"] is also correct. (It gives me the unique id!)
Request.Form["__EVENTARGUMENT"] is empty.
I think I also need to say that I use a masterpage.
The problem shouldn't be the lifecycle of the page, because msdn says:
LoadComplete
Raised at the end of the event-handling stage.
Use this event for tasks that require that all other controls on the page be loaded.
Its the onliest place it makes me think it would be right.
Btw: yes i looked trough the topics here allready, but nothing helped me ... (google fo sure also)
Edit 1:
if (IsPostBack)
{
if (recreating == true)
{
CreatePanelChoose();
}
}
In CreatePanelChoose i do the foreach now everytime when its a postback! But it still doesnt fire cb_ChangedChecked ...
Edit 2:
MSDN-Page-Lifecycle also says:
PreInit
Raised after the start stage is complete and before the initialization
stage begins.
Use this event for the following:
Create or re-create dynamic controls.
So i tried to recreate the Panel there. But i dont have the ListItems there to get the values ... ?!

Okay, gave up ...
If someone would still have an answer, it would be great!
Right now I dont use the OnCheckedChanged-Event of the CheckBoxes anymore.
I just let them select a CheckBox and on the OnClick of the ButtonOk I loop through the CheckBoxes and check which one is selected.

How can i give a focus to a listBox in the constructor and when a new item was added?

In the constructor i did:
if (listBox1.Items != null)
{
listBox1.Focus();
}
But when im running the program i cant move with the keyboards up down in listBox since the focus is on a button somewhere else in the Form. I need to click with the mouse on the listBox to get the focus.
Another problem i want that when the user add a new item to the listBox the focus will be automatic on the last added item. For this problem this is the code where im adding a new item to the listBox:
private void KeysValuesUpdate()
{
using (var w = new StreamWriter(keywords_path_file))
{
crawlLocaly1 = new CrawlLocaly();
crawlLocaly1.StartPosition = FormStartPosition.CenterParent;
DialogResult dr = crawlLocaly1.ShowDialog(this);
if (dr == DialogResult.OK)
{
if (LocalyKeyWords.ContainsKey(mainUrl))
{
LocalyKeyWords[mainUrl].Clear();
LocalyKeyWords[mainUrl].Add(crawlLocaly1.getText());
}
else
{
LocalyKeyWords[mainUrl] = new List<string>();
LocalyKeyWords[mainUrl].Add(crawlLocaly1.getText());
}
Write(w);
ClearListBox();
}
if (dr == DialogResult.Cancel)
{
Write(w);
}
}
}
private void ClearListBox()
{
data.Clear();
listBox1.DataSource = null;
string sb;
foreach (KeyValuePair<string, List<string>> kvp in LocalyKeyWords)
{
for (int i = 0; i < kvp.Value.Count(); i++)
{
sb = "Url: " + kvp.Key + " --- " + "Local KeyWord: " + kvp.Value[i] + Environment.NewLine;
data.Add(sb.ToString());
}
}
listBox1.DataSource = data;
}
The question is why i cant set the focus in any of the cases on the listBox items ?
In the first case in the constructor the focus i want it to be on the last item in the list and also each time im adding a new item so the focus will be on the last added item.

Most likely, the item is being selected, you just can't tell because a different control has the focus. There are a couple of different ways that you can solve this, depending on the design of your application.
For the first part of the question, you should set the Focus in the Page/Form Load event, since at the constructor level controls are under initialization process.
Set the focus to the ListView first whenever your form is displayed. The user typically sets focus to controls by clicking on them. However, you can also specify which controls gets the focus programmatically. One way of doing this is by setting the tab index of the control to 0 (the lowest value indicates the control that will have the initial focus). A second possibility is to use the following line of code in your form's Load event, or immediately after you set the Selected property:
listBox1.Select();
The problem with this solution is that the selected item will no longer appear highlighted when the user sets focus to a different control on your form (such as a textbox or a button).
For the second part of the question, selecting last added item in the ListBox, use the following code:
listBox1.SelectedIndex = listBox1.Items.Count - 1;
listBox1.SetFocus();

Looks like your ClearListBox method is actually a UpdateListBox method.
listBox1.DataSource = data;
listBox1.SelectedIndex = <index of newitem>;
// or
listBox1.SelectedItem = "text of new item";
listBox1.SetFocus();
If the new item is the last item, its index is listBox1.Items.Count - 1.

DevExpress DropDownButton Problems

I'm trying to create a DevEx drop down button. Unfortunately, I'm running into two problems I can't figure out:
1) I can't get the popup menu to skin correctly, i.e. it doesn't skin as "Office 2010 Blue". The code I'm using is shown below:
private void InitializeSendToPricingSheetButton()
{
var barManager = new BarManager();
if (barManager.Controller == null) barManager.Controller = new BarAndDockingController();
barManager.Controller.PaintStyleName = "Skin";
barManager.Controller.LookAndFeel.UseDefaultLookAndFeel = false;
barManager.Controller.LookAndFeel.SkinName = "Office 2010 Blue";
barManager.ItemClick += HandleSendToPricingSheetClick;
barManager.Items.AddRange(new[] { new BarButtonItem(barManager, "Foo"), new BarButtonItem(barManager, "Bar"), new BarButtonItem(barManager, "Baz") });
var popupMenu = new PopupMenu { Manager = barManager };
foreach (var barItem in barManager.Items) popupMenu.ItemLinks.Add((BarItem)barItem);
popupMenu.ItemLinks[1].BeginGroup = true;
dropDownButtonSendToPricingSheet.DropDownControl = popupMenu;
}
2) This button is on a form. If the form loses focus (e.g. I click on Firefox), the pop-up menu still remains on-top. It won't go away until clicked.
Any suggestions would be much appreciated. Thanks for helping me deal with DevEx insanity.

I have solution to your second question.
You should add drop down button event handler as below:
dropDownButton1.LostFocus += new EventHandler(HidePopUp);
Handler method should be as below:
private void HidePopUp(object sender,object e)
{
dropDownButton1.HideDropDown();
}

For your second question, you should assign value to the bar manager property as:
BarManager manager = new BarManager();
manager.Form = this; // refers to current form
Find below link for reference
https://www.devexpress.com/Support/Center/Question/Details/Q274641

It is probably simpler to use DefaultLookAndFeel
Add this comp to your form and set the theme you'd like to use.
There is no need to set the theme for individual components.
defaultLookAndFeel1.LookAndFeel.SetSkinStyle("Office 2010 Blue");

Clone a DataBound Checked List Box

I have a DataBound CheckedListBox, I "check" few items on list box(source), then I need to clone it to new Checked List Box(target). It need to have all the data, with checked state. I have tried with following function. It is properly flowing through this function.
But finally I can see items on target CheckedListBox but none of the items in target is checked.
private void CloneCheckedListBox(CheckedListBox source, CheckedListBox target)
{
foreach (int checkedItemIndex in source.CheckedIndices)
{
target.SetItemChecked(checkedItemIndex, true);
}
}
Edit:
I have a User control which I have placed on a TabPage, on that User Control there is a "CheckedListBox", I do need to create a new TabPage with the user entered value on selected(current) TabPage(on User Control)
So, what I have done is, create a new Tab Page, get a Copy of the User Control calling it's "Clone()" method.
In "Clone()" method need to have CheckedListBox cloning feature.
Here is my Cloning Code, which is on User Control...
public SearchMain Clone()
{
SearchMain smClone = new SearchMain();
smClone.txtManufacturers.Text = this.txtManufacturers.Text;
smClone.udPriceFrom.Value = this.udPriceFrom.Value;
smClone.udPriceTo.Value = this.udPriceTo.Value;
smClone.chkOld.Checked = this.chkOld.Checked;
smClone.chkPrx.Checked = this.chkPrx.Checked;
smClone.chkDisc.Checked = this.chkDisc.Checked;
smClone.chkStock.Checked = this.chkStock.Checked;
smClone.chkFirstDes.Checked = this.chkFirstDes.Checked;
smClone.chkFirstPN.Checked = this.chkFirstPN.Checked;
smClone.txtSuppPN.Text = this.txtSuppPN.Text;
smClone.txtManuPN.Text = this.txtManuPN.Text;
smClone.txtManufacturers.Text = this.txtManufacturers.Text;
smClone.meDesAND.Text = this.meDesAND.Text;
smClone.meDesOR.Text = this.meDesOR.Text;
smClone.meDesNOT.Text = this.meDesNOT.Text;
smClone.lbManufacSelected.Items.AddRange(this.lbManufacSelected.Items);
smClone.lbSearchWithIn.Items.AddRange(this.lbSearchWithIn.Items);
**CloneCheckedListBox(this.clbLang, smClone.clbLang);**
// CloneCheckedListBox(this.clbTypes, smClone.clbTypes);
return smClone;
}

You can see correct answere here..
Programatically Checking DataBound CheckListBox

try set
source.DataSource = target.DataSource;
target.DisplayMember = "YourDisplayItem";
target.ValueMember = "YourValueItem";
foreach (int checkedItemIndex in source.CheckedIndices)
{
target.SetItemChecked(checkedItemIndex, true);
}