Tag Archives: App Store

Vinnige en maklike: Stel die grootte van 'n Items in 'n lys Box in 'n Windows Store App

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In 'n Windows Store App ek skep, Ek wil die gebruiker verskeie inligting boodskappe te wys.  Ek pluk 'n ListBox as die instrument om dit te wys, sodat hulle kan blaai deur hulle en almal wat goeie dinge. 

Die boodskappe is die inligting net, so there’s no need to provide all that extra whitespace around them since the user can never select them for anything.  The default behavior of the ListBox provides a substantial amount of padding and I wanted to get rid of it.  Well …. you can’t do that sort of thing on the ListBox directly.  HOWEVER, you can do it to the items you add:

        private nietig AddGameStateLogMessage(string theMessage)
        {
            TextBox t = nuwe TextBox();
            t.Text = GameStateCounter   + ": " + theMessage;
            t.TextWrapping = TextWrapping.Wrap;
            t.MinWidth = 400;
            Dik thisPadding = nuwe Dikte(5, 0, 5, 0);
            t.Padding = thisPadding;
            t.FontSize = 12;

            ListBoxItem dat = nuwe ListBoxItem();
            li.Content = t;
            li.MaxHeight = 25;
            thisPadding = nuwe Dikte(5, 0, 5, 0);
            li.Padding = thisPadding;

            GameStateLog.Items.Insert(0,li);
        }

in the above, I’m creating a TextBox and setting its font, its padding, ens..

Volgende, I create a ListBoxItem and set its content to the formatted TextBox.

Ten slotte, I insert the ListBoxItem into the ListBox.  (I want to show most recent messages at the top of the list, hence the Insert(0,li) instead of a simple Add() invocation.).

I will be tweaking this a bit before I’m really happy with the ListBox behavior but the pattern shown above has been very fruitful.  Hopefully someone else finds it helpful.

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Die opstel van die Hoogte van ListboxItems In 'n ListBox Programmeer vir Windows Store App

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I’m working on a windows store application and one of the things I want to do in the app is display a log that shows status messages and other informational tidbits as the user works things. Vir hierdie doel, Ek het ook 'n ListBox soos volg:

<ListBox x:Noem ="GameStateLog" HorizontalAlignment ="Center" Hoogte ="221" VerticalAlignment ="Top" Breedte ="499" Padding ="0" Maak lettergrootte ="10">

 

Die C # kode die listbox te bevolk tydens looptyd was langs die lyne van:

GameStateLog.Items.Insert(0, GameStateCounter     + ": Nuwe spel staat: wag vir speler 1 naam");

This worked out fine enough but the UI showed a crazy amount of padding around the individual messages as they were added. Dit maak sin as ek wil einde gebruikers in staat wees om hierdie items te kies, maar nie sin maak toe ek wil net 'n lopende reeks log boodskappe te wys - gebruikers sal nie kies hierdie, just view them. Dit was vreemd hard 'n maklike manier om dit te doen om uit te vind en waarskynlik, the way I found it isn’t necessarily “easy” but I got it working OK. Die sleutel insig het gekom van die plasing hier (http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/c4a6f694-bd46-4779-ab83-b1c2fcb2397c) from Bob Relyea. In plaas van die toevoeging van snare op die items versameling op die ListBox, add ListBoxItems. Deur die toevoeging van 'n string, the ListBox was creating its own ListBoxItem on its own. I wasn’t able to affect anything about that ListBoxItem after the fact. Die nuwe kode is:

        private nietig AddGameStateLogMessage(string theMessage)
        {
            ListBoxItem dat = nuwe ListBoxItem();
            li.Content = theMessage;
            li.MaxHeight = 25;

            Dik thisPadding = nuwe Dikte(5, 0, 5, 0);
            li.Padding = thisPadding;

            GameStateLog.Items.Insert(0,li);
        }

 

Here I’m creating ListBoxItem’s and inserting them. Ek verwyder die oortollige padding deur die oprigting van die dikte.

Dit is redelik buigsaam as ek nie van plan sommige kleurkodering bepaalde tipes boodskappe na vore te bring om te doen en deur die direk by ListBoxItems ek kry om te styl hulle enige manier wat ek wil.

Hoop dit help iemand!

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