C#•11mo ago

Using Instances in Multiple Locations

Within a Form I am creating an Instance of

c#
public Form()
{
      EdgeDriver Driver = new(options)
      {
          //                Url = login_url
          Url = $"http://{NVR.IP}/doc/index.html#/portal/login"
      };
}

c#
public Form()
{
      EdgeDriver Driver = new(options)
      {
          //                Url = login_url
          Url = $"http://{NVR.IP}/doc/index.html#/portal/login"
      };
}

Then within the Form there is a Button that on Click i would like to

c#
public void Close_FS_Click(object sender, EventArgs e)
     {
         Driver.Close();
         Driver.Quit();
     }

c#
public void Close_FS_Click(object sender, EventArgs e)
     {
         Driver.Close();
         Driver.Quit();
     }

How can i do this?

9 Replies

Jimmacle•11mo ago

store the instance of EdgeDriver in a field/property in your form you need to do that anyway if you want that class instance to keep existing after your form constructor completes

Christian DaleOP•11mo ago

So make it a Global Variable.

Jimmacle•11mo ago

no, make it a member of your form class that's not global, it only exists in that instance of your form and can't be accessed outside it there is technically no such thing as a global variable in C#, the closest you can get is public static fields/properties

Christian DaleOP•11mo ago

where in the Code would i need to pozition it for it to be classed as a member of the Form Class.

Jimmacle•11mo ago

where do you position your methods to make them a member of the form class? https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/members

Christian DaleOP•11mo ago

what would the Return type be?

Jimmacle•11mo ago

look at the "fields" section in the page i linked

Christian DaleOP•11mo ago

It is the Output that i would need to use multiple times not the Command. If i run the command multiple times it loads the driver multiple times.

Jimmacle•11mo ago

once you store the driver in a field you can run whatever you want as many times as you want

private EdgeDriver Driver;

public Form()
{
      Driver = new(options)
      {
          //                Url = login_url
          Url = $"http://{NVR.IP}/doc/index.html#/portal/login"
      };
}

public void Close_FS_Click(object sender, EventArgs e)
     {
         Driver.Close();
         Driver.Quit();
     }

private EdgeDriver Driver;

public Form()
{
      Driver = new(options)
      {
          //                Url = login_url
          Url = $"http://{NVR.IP}/doc/index.html#/portal/login"
      };
}

public void Close_FS_Click(object sender, EventArgs e)
     {
         Driver.Close();
         Driver.Quit();
     }

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Using Instances in Multiple Locations