I'm building an control interface for a system that consists of 1-4 modules. In my interface, each module has its own control set, grouped in a groupbox. I only want to show the control groups for the modules that are actually connected and hide the rest.
This is easy to do with the visble property.
I also want all of the groups to be stacked vertically in the UI such that when one is hidden, the rest below it shift up into its place as if you deleted a row in a table. It needs to be able to come back just as easily.
How can I do this or something similar in VB.Net?
The FlowLayoutPanel control does this automatically. Just put the group boxes inside of it.
Related
Is it possible to use the built in triangle button to filter records for datasheet form in continuous forms?
If not. Then do you think if it is possible to code such a feature?
Also, is it possible to add a select all button within the datasheet form itself instead of placing it in a form containing the datasheet as a subform?
I’m afraid I have no choice but to use continuous forms because of how limiting datasheet forms are.
No, this is not an available feature. Also, no workarounds are available.
You can add an image with the filter icon and try to determine if the column is filtered, but that's both very difficult and not very useful (since you can't get the dialog to adjust the filter when you click on it).
If you want the filter dialog, however, you can just right click one of the fields to add a filter or adjust an existing filter.
I'm using VB.Net and in one of my WindowsForm I have created 3 GroupBoxes.
The problem is: I can't control groupbox.visible = true/false; so if I put the first GroupBox to false and the others to true... I still can't see the others.
I think I can't put one GroupBox on another group box, because when I do this, the overlapping group box will become the child of the below group box.
I have tried the Panel control but still have the same problem.
I think I cant put one groupbox on another group box, because when I do this, the overlapping group box will become the child of the below group box.
Yes, that seems like the most likely explanation. Windows has a hard rule about visibility: when a parent control is hidden/invisible, all of its children will also be invisible. This applies equally to all controls, which explains why the Panel didn't work for you either.
So if you want to change this state of your group boxes independently, you will need to make sure that they're children only of your form, not of each other.
This can be a real pain to get right in the designer using the mouse. Instead, use the "Document Outline" window, which shows you the forms on your control in a TreeView that emphasizes the hierarchy. Make sure that all of the group box controls are at the same level in that tree.
I need to create a custom control based on a datagrid. My need is to show the events of the day (I know there are other third-party controls).
I should redesign the cells in the datagridview but I do not know where to start, obviously do not want the code I understand that it is not a simple thing, but I would like to see one of your left indication on what to focus on.
Below is an image of what I would get
Ok so this maybe a simple/silly question but I don't know so here goes:
In access let's say I want to have a frame control, so I click the option group button and add it to the desgin surface. However, I am not wanting to use this as a option group with radio button selection, instead I would like to add text boxes instead the frame, so that when I reference the frame, it references every control instead of it, hence the text boxes, cbo boxes, etc.....just as it would if they were radio option selections.
So can you do this?
I want whatever controls I add inside the frame to be easily referenced (i.e. make all controls visible just by using frameExample.visible = true) so that I can build my own tab control groupings.....
can this be done?
Thanks!
EDIT:
What I am trying to accomplish is having a form that includes a collection of controls (input controls - cbo boxes, text boxes, etc), that serve as the Main record information. These are saved to a table via an INSERT statement on button_click because this form is unbound.
Next I have 8 categories that are relative per each main record (and data that goes along with it). Each of these categories could have a sub form area and a button click that bring it's relative form into the sub form area. These sub forms would be unbound as well as I would just save data via SQL statement. So i know I could accomplish this by running the insert statement from the parent form, on the main collection control's data that would create the KeyID number, then run a SQL statement that would turn around and load that KeyID number right back onto the page in a hidden text box.
Then when I click one of the sub forms and load its relative collection of controls, I could then save that data along with KeyID for each of these sub-forms/tables.
SO......
I was wondering if instead you could define these controls as a collection so that you could hide and make visible all the ones you need on button clicks and avoid the need for additional forms (subs). I know that if a user enters data into a text box, and then somewhere along the way that box becomes hidden, the data still exists in it and still ends up in the SQL statement....
So I want all these controls to exist on the same form, but I thought what is I could encapsulate them into a frame like an option group, then I could call the frame and all the relative controls would be called up (made visible) as needed.
Sorry for the long explanation but I thought it would help.
I do not think you can do it with an Option Group, but what you are describing is pretty much a subform, yesno?
Some examples of hiding the tab control from an app that went live in March 1998:
Tab driven by transparent command buttons over labels styled to look like colored command buttons:
Same approach, more buttons:
In this case, fake colored command buttons don't drive the tab, but insted show/hide the tab and a subform. In this case, the tab is actually driven by the listbox:
A view of when the tab is hidden and the subform revealed. The listbox drives navigation within the subform, which has a visible tab on it:
So, there's a lot that can be done without showing the tab control.
How many times have we seen this type of selector:
List Box Selector http://geekswithblogs.net/images/geekswithblogs_net/dotNETvinz/MoveItemsListBox.jpg
I was just about to start creating this in a WinForms app, when I thought that others may have some ideas for doing this better. We need it to sort - so the right hand list will need up/down buttons. But this seems so old school. I love devexpress components, and was thinking of asking them if they would consider adding a component that handles this functionality with a slick UI.
I am thinking that a graphical representation of the objects, and a graphical representation of the listboxes - that would be a more intuitive way to move items around.
Has anyone seen an open source project like this?
If a CheckListBox won't suffice (and it usually will), then the "modern" approach would be to use a ListView or similar component with a "Transfer" column. Render the button inline in that column, one for each row, so that it only takes one click to move an item from one to the other.
You see this everywhere in Vista, usually with hyperlinks as opposed to buttons. Instead of clicking on an item and then choosing an action, you click the action at the item level.
I wouldn't go overboard with slickness as it can impair functionality, but the dual-listbox screen is definitely old-school.
Also, if there's a very large amount of data to manage, it helps to provide a progressive search at the bottom of one or both lists.
I have done this type of selection using (essentially) a single CheckListBox that displays each item as an image. Part of the image looks like a LED, which is on (bright) if the item is selected or off (dark) if it is not selected.
This works well if you have a reasonable amount of data to select from, and also works well in a multi-column format if you can predict that the options will have reasonably similar lengths.
Allow users to drag items in/out of list 2, and also drag to reorder in list2.
(All items dragged out of list2, and dropped anywhere outside the list, get put back into list 1, in their correct place in the list by alphabetical or natural order.)
You can merge the two list boxes into one with the help of groups (LVGF_GROUPID flag): one group for selected and one for not selected.
You can also implement group membership changes with drag-drop between them. This way single drag-drop can move an item into the other group at the appropriate position, saving most/all of the other buttons.
Additionaly the bottom of each group can have one pseudo item with help text (i.e. "Drag items here to...") that is visible only when relevant.