Is this possible? (Properties.Settings.Default)

Question

I want to make a test on the Properties.Settings.Default in the middle of an array...

List<Button> buttons = new List<Button>();
                for (int j = 0; j < hour; j++)
                {                    
                    Button btn = new Button();
                    btn.Name = GenerateButtonName(day[i],j);
                   
                    name = btn.Name.Substring(3);
                                      if (Properties.Settings.Default.SettingsKey == name)
                    {
                    btn.BackColor = System.Drawing.Color.Green;
                    }
                    else
                    {
                        btn.BackColor = System.Drawing.Color.LightGray; ;
                    }
                                               
The buttons name will be like btnMon12 and im appending it to Mon12 (which is the name of a setting in the app.Config)

I want to test to make sure its the correct entry and if its true or false

Answer 1

Hi,

you are checking the SettingsKey property. This property is there for supporting multiple AppSettings (one for each instance of the application).

If you like to check, if there is a specific entry inside the Properties collection, you can simple iterate trough the Properties-property with foreach:

bool found=false;

foreach (SettingsProperty currentProperty in Properties.Settings.Default.Properties)

{

if(currentProperty.Name == name)

{

found = true;

}

}

Best Regards,
Ilija Injac

Answer 2

Edit: I fixed it just missed the quotes around the "True"

Answer 3

Now i got it working with this code:

foreach (SettingsProperty currentProperty in Properties.Settings.Default.Properties)
                    {
                        if (currentProperty.Name == name)
                        {
                            if (currentProperty.DefaultValue.Equals("True"))
                            {
                                btn.BackColor = System.Drawing.Color.Green;
                            }
                            else
                            {
                                btn.BackColor = System.Drawing.Color.LightGray;
                            }
                        }
      
                    }

It wont save, i have Properties.Settings.Default.Save(); on a button click

I modified my code for testing..

private void btn_Click(object sender, EventArgs e)

{

string senderName;

senderName = ((System.Windows.Forms.Button)sender).Name.Substring(3);

if (((System.Windows.Forms.Button)sender).BackColor == System.Drawing.Color.Green)

{

((System.Windows.Forms.Button)sender).BackColor = System.Drawing.Color.LightGray;

foreach (SettingsProperty currentProperty in Properties.Settings.Default.Properties)

{

if (currentProperty.Name == senderName)

{

currentProperty.DefaultValue = "False";

label1.Text = currentProperty.DefaultValue.ToString();

Properties.Settings.Default.Save();

}

}

}

else

{

label8.Text = ((System.Windows.Forms.Button)sender).BackColor.ToString();

((System.Windows.Forms.Button)sender).BackColor = System.Drawing.Color.Green;

foreach (SettingsProperty currentProperty in Properties.Settings.Default.Properties)

{

if (currentProperty.Name == senderName)

{

currentProperty.DefaultValue = "True";

label1.Text = currentProperty.DefaultValue.ToString();

Properties.Settings.Default.Save();

}

}

}

}

The lable changes from true to false on click (which should mean the setting has changed, but if i close and open the form, the settings are lost

Answer 4

Hi,

if your settings are defined as application settings, they will not save, because they are read-only.

You have to change the settings type to "user".


Best Regards,
Ilija Injac

Answer 5

Nah they are defined as User, i was thinking about it this morn and i still cant work out wahts wrong unless im using the wrong command to save

Answer 6

ok it seems that this bit is wrong

foreach (SettingsProperty currentProperty in Properties.Settings.Default.Properties)

{

if (currentProperty.Name == senderName)

i can add pretty much anything to that and it wont error even though its a bool. Is there some other way to do this

Answer 7

I found that even though the settings look like this
Name | Type | Scope | Value
mon0    bool     user     True

this statement returns false

  public Form1()
        {
            InitializeComponent();
            CreateButton();
            label1.Text = Properties.Settings.Default.Mon0.ToString(); 
           
        }
 
however if i add "Properties.Settings.Default.Mon0 = true;" so it looks like this

 public Form1()
        {
            InitializeComponent();
            CreateButton();
            Properties.Settings.Default.Mon0 = true;
            label1.Text = Properties.Settings.Default.Mon0.ToString(); 
           
        }
it will return true and the settings will still remain as

Name | Type | Scope | Value
mon0    bool     user     True

Whats going on? I tried to publish it and it still doesn't save the changes and draw the boxes properly
        

Answer 8

 

Hello,

         Please try not to run the application in Visual Studio Debugger.   And please double click the application and press “Ctrl + F5” in Visual Studio IDE to run the application directly, then run again please, the settings value is actually changed.   If we run the application via Visual Studio Debugger, the project default information and settings will be changed back to original default values.   So it looks like you could only save the values during run time.   Following are the testing codes:

-------------------------------------------------------------------       
        public Form1()

        {

            InitializeComponent();

            MessageBox.Show(Properties.Settings.Default.Setting1);

            Properties.Settings.Default.Setting1 = "New Value";

            Properties.Settings.Default.Save();

        }
------------------------------------------------------------------- 

          
        Thanks,

Best Regards,
Lingzhi

---

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