Databases
StackOverflow2013
Postsdbo
POapp stops responding with no apparent reason
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POapp stops responding with no apparent reason
    primarykey
    data
    text
    <p>My dice roller app contains 7 text boxes (three pairs of 'No. Of Dice' and 'Dice Type' and a bonus one) and a button. I intended that each pair of text boxes is read separately, and if it doesn't contains valid numbers ('fate' and '%' are read as numbers for app reasons) it ignores it.</p> <p>the problem is that when I do not enter valid numbers in one of the 'no. of dice' text box the app stops responding, and eventually returns to the loading page.</p> <p>note that I've tested each method separately already.</p> <p>here is the code:</p> <pre><code>namespace DiceRoller { public sealed partial class MainPage : DiceRoller.Common.LayoutAwarePage { public MainPage() { this.InitializeComponent(); } Random r = new Random(); //regular, untouched basic page code here private void btnRoll1_Click(object sender, RoutedEventArgs e) { //the problem is with the number boxes. List&lt;int&gt;[] results = new List&lt;int&gt;[3]; if (!(ReadInput(textBoxNumber1.Text) == 0 || ReadInput(textBoxType1.Text) == 0)) { results[0] = Roll(ReadInput(textBoxType1.Text), ReadInput(textBoxNumber1.Text)); } if (!(ReadInput(textBoxNumber2.Text) == 0 || ReadInput(textBoxType2.Text) == 0)) { results[1] = Roll(ReadInput(textBoxType2.Text), ReadInput(textBoxNumber2.Text)); } if (!(ReadInput(textBoxNumber3.Text) == 0 || ReadInput(textBoxType3.Text) == 0)) { results[2] = Roll(ReadInput(textBoxType3.Text), ReadInput(textBoxNumber3.Text)); } textBlockOutput1.Text = "Results:" + String.Join(", ",results[0]) + ", " + String.Join(", ", results[1]) + ", " + String.Join(", ", results[2]) + System.Environment.NewLine + "Total:" + ((results[0].Sum() + results[1].Sum() + results[2].Sum() + ReadInput(textBoxBonus.Text)).ToString()); } //METHODS private int ReadInput(string input) //tested { int returnValue = 0; if (int.TryParse(input, out returnValue)) ; //the 'out' will make sure that the number has passed else if (input == "%") returnValue = 100; else if (input.ToLower() == "fate") returnValue = 6; else if (input == "") ; else textBlockOutput1.Text = "Error: All text boxes should contain a number, the strings '%', 'Fate'(not case sensitive) or to be blank"; return returnValue; } private int Roll(int diceType) //tested { return r.Next(diceType - 1) + 1; } private List&lt;int&gt; Roll(int diceType, int diceNumber)//tested { List&lt;int&gt; results = new List&lt;int&gt;(); for (int i = 1; i &lt;= diceNumber; i++) results.Add(Roll(diceType));//if one of the no. textboxes is read as '0', this couln't operate return results; } } </code></pre> <p>}</p> <p>-thanks in advance for helpers</p> <p><strong>edit:</strong> i looked at it with the debugger as advised in the comments (thanks) and the error is 'Value cannot be null'. but what value? it doesn't give any clues. thanks again.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser1461837
    1. USuser1461837
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COHave you run it under the debugger? If not, I suggest you start there.
      singulars
      1. POapp stops responding with no apparent reason
      1. USMatthew Watson
    2. CO@MatthewWatson - You beat me to it, it sounds like a job for Mr Efften and Mrs EFFEleven
      singulars
      1. POapp stops responding with no apparent reason
      1. USSayse
    3. COMr Efften and Mrs EFFEleven, I like that. Those two will be his bffs in every situation.
      singulars
      1. POapp stops responding with no apparent reason
      1. USZanderAdam
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload