I'm using .NET's DateTimePicker in a dropdown UITypeEditor to show in a property grid. The DateTimePicker shows a redundant line that means you have to click twice to show the useful calendar bit. How can I hide it so it skips straight to the calendar?
Backstory: Previously used used MonthCalendar, which doesn't have the redundant line. However, MonthCalendar crops itself sporadically (when edit one date in the grid, then another), which looks bad.
I don't think that there is any (easy) way to remove this part because is what defines the DateTimePicker as opposed to MonthCalendar.
What you call "useful calendar bit" is actually a MonthCalendar, why don't you rely on this control instead?
Or if you don't want to rely on MonthCalendar, perhaps you should consider a custom DateTimePicker: lots of codes in internet (sample1, sample2); even creating one by your own (after getting some inspiration from the available ones). Anything before considering the option of modifying a so important part of the control.
Related
I believe am in need of creating custom RichTextBox in C#. One kind of like that:
I admit it might not even have to be RichTextBox, but after some research I decided it's gonna be the easiest way. Functionality I need are icons at each row, checkboxes and text formatting. My program will process each line of the text and mark lines that are correct, incorrect, and strike out lines not necessary in further work, while showing line that's currently processed and allowing user to edit some lines freely (here: lines before Around 3 000 won't be editable, but those under the line will).
What's the problem then? I have no idea how to get it done. I've seen tutorial on how to make single-line textBox with icon or checkbox nearby, but I have no idea how to make both, and for multiline textBox (so I could freely scroll and everything would work fluently). I've read some questions on SO as well, but neither helped me.
I just don't know how to get started, I realize it won't be 5 min work, but I'm willing to do it. Until now I've been only able to create custom control deriving from RichTextBox, but I have no idea which methods and how to override. Any help appreciated.
Try to use WebBrowser control instead RichTextBox.
You can add CheckBoxes and editable content by setting a correct HTML code to it.
Set each TextBox or CheckBoxes ids and use GetElementsByTagName or GetElementById to access inner elements to get or set its attributes or values.
I already did some research and ended up with several autocomplete boxes which have one thing in common: they all match the whole expression which has been entered. Sometimes, they seem to be easily expandable, but at the end, they aren't.
However, I need a Textbox which allows the user to enter a word (e.g. "tag1"), displays a popup with some suggestions based on this single word, accept the suggestion with the return key and type in a new word (e.g "tag1 tag2") in the same textbox, with the popup popping up again. (I like the way CintaNotes handles this)
I need this for a tagging interface. It's often faster for the user to write the tags into a simple box, but sometimes, he needs assistance. This is what the autocomplete is for.
I've found some results, which don't work for my purpose (imho):
http://www.wpfpedia.com/item/details/743/wpf-autocomplete-textbox-control
http://www.codeproject.com/KB/WPF/WPF_Autocomplete.aspx
http://www.codeproject.com/KB/WPF/autocomplete_textbox.aspx
http://weblogs.thinktecture.com/cnagel/2011/01/autocomplete-textbox-with-wpf.html
Btw, I really like the way the Tag-Box for SO operates.
Does anyone have an idea? Is there a "out-of-the-box" - solution somewhere, which suits my needs but I didn't find? Or do I have to build one myself?
Thanks! :)
I think you mean a textbox which autocomplete for multiple words.
Like TokenizedTexbox on WPF Extended Toolkit.
this is the page: http://wpftoolkit.codeplex.com/wikipage?title=TokenizedTextBox&referringTitle=Home
Probably you would need to create your own Dictionary object of Key and Value pairs and hook that Dictionary to the textbox events and popup a suggestions dialog that displays the Value(s) from your Dictionary
Check this implementation out: http://code.google.com/p/kocontrols/downloads/list
You may inject your own Search algorithm and your own converter which converts the selected element to text, which you display in the TextBox. You will have to modify it slightly but I think that you might be able to solve your problem by basing your control on this implementation.
I never thought about this type of use case.
Can't you use different textboxes for the different tags? Something similar to how goole code does it?
If you have time, you can use the RichEditControl or TextBox and apply the same pattern used in Intellisense engine or Code Completation enabled editors: Hook the text changes events, Recogize context (last/current word) and display the options list on popup control. And optionally, on commit (detect acceptation or space key), apply the format to the word.
I've been asked to develop a system wherein employees can mark on a form their availability on a given day of the week - for instance an employee could mark themselves as available on a given time on a given week, and unavailable on some other time. It looks a little like this:
http://img697.imageshack.us/img697/842/mvcb.jpg
Currently this works by rendering checkboxes within the table, picking up click events in each cell and marking the checkbox and hence the cell appropriately. I'm using the JQuery "click n drag checkbox" plugin from here. However, I've been informed that there could well be more than two states for a given cell (for instance available, unavailable, available in a given circumstance), in which case binding to a checkboxes checked value isnt going to be a lot of help.
I've never used javascript or asp.net before and am unsure as to the best way to approach this problem. Ideally I could stick a data structure behind each cell which I could update to a certain state and then get my cell colour by binding to this - however I'm at something as a loss as how to best achieve this.
Add a click event to the cell - e.g. click on the cell. Each click could then change the status of the cell. This status could then be store via ajax or using a submit button like on a form. Each cell could relate to a hidden form field which is where you status could be kept.
Maybe take some inspiration from google calendar. There you can select a timespan in the month view by click-dragging a range of days. I guess thats a faster way of entering longer timespans. (Like the lower part of the dragon)
I have a somewhat complex UserControl, and Visual Studio 2008 is giving me a rather harmless annoyance when working with it. Every single time I open the control with the Designer, it decides to immediately change some of the harmless values set by the designer - namely the initialization of Size properties. If I save those changes, close, and reopen, it almost invariably ends up deciding another component of my control needs its initial size changed, ad infinitum. Luckily these changes are harmless since I'm using automatic sizing everywhere, but this is quite annoying to work with. I haven't the foggiest on where to start figuring out what's going wrong, my only thought right now is that the Designer is assigning the results of auto-sizing back into the initial size fields every time I open the control. Any ideas on causes/fixes?
Edit: Also, I am using Application Settings to save sizes of certain resizable child components across runs of the application, but I really hope the Designer is smart enough to understand that it should only ever be using the defaults.
Maybe it can help:
I noticed that FormDesigner (no WPF, no Web etc) has a strange behaviour if you insert one custom UserControl.
There is a random change of other controls (GroupBox, EditBox, ComboBox) size (to me happened with width).
The controls choosen to resize seems to be random, but across restarting of vs2010 it is always the same. If deleted and reinserted, the designer chooses a different control do randomly resize...
I changed the property AutoScaleMode of my UserControl from "Font" to "Inherit" and it did not happen again.
You're right, the designer often tries to add default values to properties.
Add this on top of the property declaration:
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
That will tell the designer to ignore this property.
I have somewhat similar problem. I am using Infragistics GroupBox on a user control which I inherited and now want to change its look and feel in the derived class. I have made it protected in base class -- so it does allow me changing properties in derived class. But it does not save it. Every time I open it -- I get same old values of base class back.
Any idea?
Edit: I figured it out.
Trying various value for one of the above given answers.
Using [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] instead of [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] generates code for changed properties - and things work as desired.
Try overriding the DefaultSize property of your control.
From MSDN:
The DefaultSize property represents the Size of the control when it is initially created.
Im trying to emulate a 'find as you type' function like that of the address bar ("awesome bar") in FireFox. I want a suggestion box to appear below a textbox, and the suggestion box contains strings that contain what is in the textbox. I looked at the autocomplete feature of a normal WinForms textbox, but it seems to only search the beginning of the strings.
Has anyone here built or have experience with implementing something like this?
edit:
Some clarification- It is a WinForms project.
It needs to search inside a string, not just the beginning (which is what a normal textbox does if i recall correctly). And the suggestions should be displayed in a popup like a textbox autocomplete.
You need to handle the TextChanged event for your text entry field, and when the text changes, start a new thread running that will apply the new search. If the text changes before you get your results back, just kill the thread. If the thread returns results in time, display them.
You can get slightly more advanced (e.g. wait for a short time after the text changes so that the user can type a word without you triggering off loads of useless threads) but essentially that's it.
There was a discussion earlier on this topic where the author concluded that you are better off doing the whole thing yourself.
How can I dynamically change auto complete entries in a C# combobox or textbox?
I did something vaguely similar, but more like the iTunes® search box than the Awesomebar. My control used the textbox to actively filter a grid; so it wasn't for autocompletion.
...but... basically I had a DataView of all eligible items, whenever the TextBox's Text changed I'd update the Filter to hide all non-matching items. It worked well and might suit your needs for filtering the data--but not sure how to go about using it as an AutoComplete source for the textbox.
I have done such a thing for an app of mine not too much time ago.
What I did is make my search function in a new thread, so every time I typed a new letter, it called the search function in another thread, so I could keep on typing.
I can post some code if you need, but this should be enough to get you started. :)
Hemmed and hawed about deleting this after I noticed the OP edit mentioned winforms, but I think it'll be useful to anyone who comes here looking for the same but for asp.net apps.
Just because nobody has mentioned it yet, for a webforms app you absolutely want to do this with ajax (.net controls or pure JS, your choice). The feature is often called "autocomplete" and the one thing you don't want it to be breaking the seamlessness by making server round trips at the page level.
I suggest you look at this and this.
I've used Search As You Type in C# and How do I make a Textbox Postback on KeyUp?
Basically you use the keyup action to call a postback thats attached to the trigger to the update panel. then you do your update in the textbox_changed event with the dataview or whatever your backend looks like.