I hope you can help me! I am trying to make a game similiar to candyland. I want the die to spin when the user clicks the button. A random number is chosen and based on that number, the dice displays the image for that number. That works! Then, I want our user to be able to move forward on our board- based on the spot that they're on, it adds whatever they spinned and the image on that spot becomes visible. When in debug mode, everything works perfectly but for some reason, the pawn never moves! Can you please tell me why. I am attaching my code below. Thank you so much!
protected void btnSpin_Click(object sender, EventArgs e)
{
Random randomNumber = new Random();
int x = randomNumber.Next(1, 6);
switch (x)
{
case 1:
//imgDie.ImageUrl = "~/Images/dice1.jpg";
Session["Die"] = "~/Images/dice1.jpg";
break;
case 2:
Session["Die"] = "~/Images/dice2.jpg";
break;
case 3:
Session["Die"] = "~/Images/dice3.jpg";
break;
case 4:
Session["Die"] = "~/Images/dice4.jpg";
break;
case 5:
Session["Die"] = "~/Images/dice5.jpg";
break;
case 6:
Session["Die"] = "~/Images/dice6.jpg";
break;
}
imgDie.ImageUrl = (string)Session["Die"];
place = place + x;
switch (place)
{
case 2:
img2.Visible = true;
img2.ImageUrl = (string)Session["Imagesrc"];
break;
case 3:
img3.Visible = true;
img3.ImageUrl = (string)Session["Imagesrc"];
break;
case 4:
img4.Visible = true;
img4.ImageUrl = (string)Session["Imagesrc"];
break;
case 5:
img5.Visible = true;
img5.ImageUrl = (string)Session["Imagesrc"];
break;
case 6:
img6.Visible = true;
img6.ImageUrl = (string)Session["Imagesrc"];
break;
case 7:
img7.Visible = true;
img7.ImageUrl = (string)Session["Imagesrc"];
break;
case 8:
img8.ImageUrl = (string)Session["Imagesrc"];
img8.Visible = true;
break;
my guess is your 'place' variable is a member field and it's being reinitialized with each page construction. chnge your place variable to be viewstate or session state like your other stuff.
Related
I have the following Code down here, but when I try to add a child to parent it causes an error when parentID is bigger than 4.
public void LoadNodes()
{
ConnectionShorten("TreeViewTable");
int H = MyNodes.Tables["TreeViewTable"].Rows.Count;
for (int i = 0; i < H; i++)
{
int PID = MyNodes.Tables["TreeViewTable"].Rows[i].Field<int>("ParentID");
string Name = MyNodes.Tables["TreeViewTable"].Rows[i].Field<string>("RootName");
int Level = MyNodes.Tables["TreeViewTable"].Rows[i].Field<int>("Level");
int UID = MyNodes.Tables["TreeViewTable"].Rows[i].Field<int>("UID");
switch (Level)
{
case 0:
treeView1.Nodes.Add(Name.ToString());
break;
case 1:
treeView1.Nodes[0].Nodes.Add(Name.ToString());
break;
case 2:
switch (PID)
{
case 1:
treeView1.Nodes[0].Nodes[0].Nodes.Add(Name.ToString());
break;
case 2:
treeView1.Nodes[0].Nodes[1].Nodes.Add(Name.ToString());
break;
case 3:
treeView1.Nodes[0].Nodes[2].Nodes.Add(Name.ToString());
break;
case 4:
treeView1.Nodes[0].Nodes[3].Nodes.Add(Name.ToString());
break;
case 5:
treeView1.Nodes[0].Nodes[4].Nodes.Add(Name.ToString());
break;
case 6:
treeView1.Nodes[0].Nodes[5].Nodes.Add(Name.ToString());
break;
case 7:
treeView1.Nodes[0].Nodes[6].Nodes.Add(Name.ToString());
break;
case 8:
treeView1.Nodes[0].Nodes[7].Nodes.Add(Name.ToString());
break;
case 9:
treeView1.Nodes[0].Nodes[8].Nodes.Add(Name.ToString());
break;
case 10:
treeView1.Nodes[0].Nodes[9].Nodes.Add(Name.ToString());
break;
case 11:
treeView1.Nodes[0].Nodes[10].Nodes.Add(Name.ToString());
break;
default:
break;
}
break;
case 3:
break;
default:
break;
}
}
}
It does load 1 main node and 10 parents, then when it comes to child it says a negative index, but I'm sure the parent does exist!
Also how can I make more levels with no difficulty like this, because I think it's very difficult to make levels > 3.
You can close it, I just found that problem and solved it.
It was because there is a jump on ID on the DB. So I try to add child before I even add the parent. my program is read by ID so thats it ... sorry for this.
I am building a form that takes an input number from a text box and then will take the number that was input, and display the roman numeral equivalent in another text box.
My Form:
private void convertButton_Click(object sender, EventArgs e)
{
int numberInput;
switch (numberInput)
This is where I keep getting an error code. The "switch (numberInput)" is seen as and unassigned local variable. How do I assign it so that it will be able to access all of the case integers?
{
case 1:
outputTextBox.Text = "I";
break;
case 2:
outputTextBox.Text = "II";
break;
case 3:
outputTextBox.Text = "III";
break;
case 4:
outputTextBox.Text = "IV";
break;
case 5:
outputTextBox.Text = "V";
break;
case 6:
outputTextBox.Text = "VI";
break;
case 7:
outputTextBox.Text = "VII";
break;
case 8:
outputTextBox.Text = "VIII";
break;
case 9:
outputTextBox.Text = "IX";
break;
case 10:
outputTextBox.Text = "X";
break;
default:
MessageBox.Show("Please enter and number between 1 and 10. Thank you!");
break;
}
Cause your variable is not assigned yet int numberInput; and so the error. You said input is coming from a TextBox, in that case do like below assuming textbox1 is your TextBox control instance name
int numberInput = Convert.ToInt32(this.textbox1.Text.Trim());
Convert.ToInt32 may throw an exception if the parsing is unsuccessful. Another method is to Int.Parse:
int numberInput = int.Parse(textbox1.Text.Trim());
or better yet
int numberInput;
if(int.TryParse(textbox1.Text.Trim(), out numberInput))
{
switch (numberInput)
...
}
I'm creating n 8th ball and I'm trying to randomly generate one of the eight phrases into a textbox once a button is tapped and can't get my head around how to get my phrases in a textbox when a button is tapped.
private void Button1_Tapped(object sender, TappedRoutedEventArgs e)
{
Random num = new Random();
int a = num.Next(9);
switch (a)
{
case 0:
Console.;
break;
case 1:
Console.WriteLine.TextBox("Yes");
break;
case 2:
Console.WriteLine.TextBox("No");
break;
case 3:
Console.WriteLine.TextBox("Maybe");
break;
case 4:
Console.WriteLine.TextBox("You could say that");
break;
case 5:
Console.WriteLine.TextBox("Most certain");
break;
case 6:
Console.WriteLine.TextBox("Dont even try");
break;
case 7:
Console.WriteLine.TextBox("Full steam ahead");
break;
}
}
Console.WriteLine() normally writes to the Console output in a Console App. So it seems you are mixing something up...
Your textbox in the wpf app needs to have a variable name e.g. theTextBox and then you assign the string to the .Text property.
private void Button1_Tapped(object sender, TappedRoutedEventArgs e)
{
Random num = new Random();
int a = num.Next(9);
switch (a)
{
case 0:
theTextBox.Text = "";
break;
case 1:
theTextBox.Text = "Yes";
break;
case 2:
theTextBox.Text = "No";
break;
case 3:
theTextBox.Text = "Maybe";
break;
case 4:
theTextBox.Text = "You could say that";
break;
case 5:
theTextBox.Text = "Most certain";
break;
case 6:
theTextBox.Text = "Dont even try";
break;
case 7:
theTextBox.Text = "Full steam ahead";
break;
}
}
I have a lstYourHand that has two cards in it, I loop through the listbox to get the values of both cards. I take the string value of the listbox item (strCardVal) and use a switch to give it an integer value (intCardVal). For some reason, when I run the code, the message Box at the end gives me the value 0 as a result, it does not register me giving it a value in the switch statement. My code is below:
Int32 intCardVal = 0;
String strCardVal;
Int32 intLoopCounter1;
for (intLoopCounter1 = 0; intLoopCounter1 == 1; intLoopCounter1++)
{
strCardVal = lstYourHand.SelectedItem.ToString();
switch (strCardVal)
{
case "2":
intCardVal = 2;
break;
case "3":
intCardVal = 3;
break;
case "4":
intCardVal = 4;
break;
case "5":
intCardVal = 5;
break;
case "6":
intCardVal = 6;
break;
case "7":
intCardVal = 7;
break;
case "8":
intCardVal = 8;
break;
case "9":
intCardVal = 9;
break;
case "10":
case "J":
case "Q":
case "K":
intCardVal = 10;
break;
case "A":
intCardVal = 11;
break;
}
}
MessageBox.Show(intCardVal.ToString());
Have a look at this part of your code:
for (intLoopCounter1 = 0; intLoopCounter1 == 1; intLoopCounter1++)
In fact this loop body never will be executed because of loop execution condition intLoopCounter1 == 1 (which is false at the very first iteration since intLoopCounter1 == 0 in the beginning) - so your intCardVal will not be modified.
I think you've kept in mind intLoopCounter1 <= 1 here.
Also note (as it was mentioned in comments) - this kind of errors is pretty easy can be found by using debugger.
Full disclosure here, I am a student doing homework. I have 2 listboxes with items that can be selected. What is said in them is not needed to be extracted. I wrote the code out and everything works except I get an error saying "use of unassigned variable" on 3 variables at the end of the code. They are locFees, days, and registration. Can anyone tell me what I am doing wrong that is causing the variables to not have a value?
private void btnCalc_Click(object sender, EventArgs e)
{
double registration, lodging, total, days, locFees;
int workshopIndex, locationIndex;
if (lbWorkshop.SelectedIndex != -1)
{
workshopIndex = lbWorkshop.SelectedIndex;
switch (workshopIndex)
{
case 0:
days = 3;
registration = 1000;
break;
case 1:
days = 3;
registration = 800;
break;
case 2:
days = 3;
registration = 1500;
break;
case 3:
days = 5;
registration = 1300;
break;
case 4:
days = 1;
registration = 500;
break;
}
}
else
{
MessageBox.Show("You didn't select a workshop.");
}
if (lbLocation.SelectedIndex != -1)
{
locationIndex = lbLocation.SelectedIndex;
switch (locationIndex)
{
case 0:
locFees = 150;
break;
case 1:
locFees = 225;
break;
case 2:
locFees = 175;
break;
case 3:
locFees = 300;
break;
case 4:
locFees = 175;
break;
case 5:
locFees = 150;
break;
}
}
else
{
MessageBox.Show("You didn't select a city.");
}
lodging = locFees * days;
total = registration + lodging;
}
Can anyone tell me what I am doing wrong that is causing the variables to not have a value?
Sure - you're ignoring the possibility that workshopIndex isn't 0, 1, 2, 3 or 4.
If you believe that should never happen, just add:
default:
throw new InvalidOperationException("Invalid selected index " + workshopIndex);
Or if you just want to use some defaults, do something like:
default:
days = 1;
registration = 100;
break;
That's the first way you can end up with days and registration unassigned.
Next, there's the fact that you only go into the switch block at all if lbWorkshop.SelectedIndex != -1. Your else block is just:
else
{
MessageBox.Show("You didn't select a workshop.");
}
... so after that else block, you're going to continue. You probably want:
else
{
MessageBox.Show("You didn't select a workshop.");
return;
}
You've then got the same problem for locFees, in terms of both the switch statement and the else block.
One thing to learn from this: be grateful that the compiler spotted these for you. It's stopped you from running code which definitely had bugs in. That's always a good thing.