c# - NumericUpDown Control is not in my list of available controls in Visual Studio 2015 (Community) -


i'm learning c# , following tutorial.

the tutorial written vs2013, doing in vs15 (community). says drag numericupdown object in toolbox in designer window not listed. i've tried right clicking , looking in "choose items" dialog and, in fact, numericupdown listed , checked doesn't show in toolbox list. google searches i've found have people saying shows grayed out, mine isn't there, let alone grayed out. i'm working in wpf project.

any suggestions?

since wpf doesn't have standart numericupdown element have create 1 ourselfs:

below posted sample, original here: codeproject

 <grid margin="1">     <grid.columndefinitions>         <columndefinition width="*" />         <columndefinition width="20" />     </grid.columndefinitions>      <textbox name="textboxvalue"              textalignment="right"              grid.column="0"/>     <stackpanel orientation="vertical"     grid.column="1"     verticalalignment="center">         <button name="btnincrease"                 click="increase">             <image source="images/up.png" height="3" width="5"  />         </button>         <button name="btndecrease"                 click="decrease">             <image source="images/down.png" height="3" width="5" />         </button>     </stackpanel> </grid>

this create textbox 2 buttons on right side up/down arrows(dont forget images buttons)

the easiest way implement this, build class , add youre toolbox. after did can use numericupdown control basic winform application.

but have write code behind this.


-

Comments

Post a Comment

Popular posts from this blog

amazon web services - S3 Pre-signed POST validate file type? -

i know it's possible put limit on file size content-length-range header. possible validate file type? https://docs.aws.amazon.com/amazons3/latest/dev/httppostforms.html#policyconditions i see there content-type header, if set say, audio/mp3 allow mp3 files , return error if file not mp3? i found previous question answers mention validating file size: s3 direct upload restricting file size , type you can specify content-type @ post request. you can specify @ signature, post must done content-type: { "expiration": "2007-12-01t12:00:00.000z", "conditions": [ {"acl": "public-read" }, {"bucket": "johnsmith" }, {"content-type: "audio/mp3"} ] } creating html form (using aws signature version 4) edit: @ previous question found, checking content-type.
Read more

c# - Check Keyboard Input Winforms -

i wondering if instead of doing this protected override void onkeydown(keyeventargs e) { if (e.keycode == keys.a) console.writeline("the key down."); } i set bool method , this: if(keydown(keys.a)) // whatever here i've been sitting here ages trying figure out how it. can't wrap head around it. in case wondering, plan call bool inside different method, check input. since want perform action after pressing key, using keydown event enough. but in cases suppose want check if specific key down in middle of process, can use getkeystate method way: [dllimport("user32.dll", charset = charset.auto, exactspelling = true)] public static extern short getkeystate(int keycode); public const int key_pressed = 0x8000; public static bool iskeydown(keys key) { return convert.toboolean(getkeystate((int)key) & key_pressed); } you should know, each time check key state using example iskeydown(keys.a) method returns true if ke...
Read more