从外部从 App 配置文件中读取值

Question

I have created a windows form application which taking values from App config file. I wanted to make it, when after the build, I goes to the app config file and open it and change the value. Then program is taking that value. But sadly it isn't working. Can you tell me where I was wrong?

int EmId = Properties.Settings.Default.UserId; //taking the UserId value from Appconfig
bl_Static.empIDFixed = EmId; // assign it to the Static variable

this is the Appconfig code that I'm changing the "value"

<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" /></startup>

<userSettings>
    <PopUpPAS.Properties.Settings>
        <setting name="UserId" serializeAs="String">
            <value>4</value> 
        </setting>
    </PopUpPAS.Properties.Settings>
</userSettings>

<runtime>

When I do that change Externally ( Opening the app config file from note pad and change the value to another value). It doesn't get the value.

Answer 1

After my test, I found that your code has no problems. I suggest you follow my steps to create a project.

My Settings.settings is as follows: Settings.settings

My code:

private void Form1_Load(object sender, EventArgs e)
     {
         int EmId = Properties.Settings.Default.UserId;
         MessageBox.Show(EmId.ToString());
     }

The execution process: Execution process