Get value from isolate storage

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2.00/5 (3 votes)

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Hi,
I am trying to read a value from isolated storage and perform a function based on the value.

For example if the value is true I will then load some values. However all I get is Cannot implicitly convert type 'string' to 'float'

Here is the first part of my code:

C#

private void LayoutRoot_Loaded(object sender, System.Windows.RoutedEventArgs e)
       {
           {
               checkstate.Text +=
               IsolatedStorageSettings.ApplicationSettings["lost"] as string;
               float checks = float.Parse(checkstate.Text);
               if (checks = "true")
               {

                   number1.Text = rnd.Next(1, 10).ToString();
                   number2.Text = rnd.Next(1, 10).ToString();

and so on

Any help is much appreciated, I am just learning how to program so please forgive me for any completely stupid mistakes.

Posted 17-Jul-12 7:05am

Alex Foster

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[no name] 17-Jul-12 14:25pm

"checks = "true" ... is "true" a float? No it's a string. You cannot do that.

Sergey Alexandrovich Kryukov 17-Jul-12 16:44pm

Besides, it probably meant "==". This is not spelling, just lack of understanding the very basics.
Voted 1.
--SA

[no name] 17-Jul-12 15:06pm

Once you figure out the first error, the answer to your next question/error is: "=" is an assignment operator. What you want here is if (checks == true). The "==" (double equals) is a comparison operator.

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WoodenLegNamedSmith · Accepted Answer · 2012-07-17T11:50:00

Data Types 101

A "STRING" is a sequence of characters commonly called "Text"
A "BOOLEAN" is a true or false value.
A "FLOAT" is a precision decimal number.

Here is an example of using each one.

C#

//STRINGS
string checkState = IsolatedStorageSettings.ApplicationSettings["lost"];
if(checkState == "true")
{
     //Do Stuff!
}

//BOOLEAN
bool checkState = false;
if(checkState == true)
{
     //Do Stuff!
}

//FLOATS
float checkState = 1.0002;
if(checkState > 1)
{
     //Do Stuff!
}