CODEWITHSUNDEEP
c#random
user4646310
user4646310

Reputation:

Retain variables when use Guid type

Today, I have problem when create random ID with Guid type in C#.

When I want random ID. And I use:

obj.ID = new Guid(txtID.Text);    //ID type Guid

But when run program. It automatic generate 1 id random when I swipe card.

I want when swipe card. It will random ID and retain this values until I delete it.

Edit: My english not good. Sorry about that.

Here my code generate Guid and set value to textbox:

mReader.CurrentCardIDBlock1 = System.Guid.NewGuid().ToString("N");
mReader.CurrentCardIDBlock2 = System.Guid.NewGuid().ToString("N");

txtID.Text = mReader.CurrentCardIDBlock1.ToString();
String strCompont = txtID.Text;

onWriteDataBlock1(strCompont);  //Write data to mifare card in block 1 sector 14
MessageBox.Show("Write data success");

If swipe card 1 > random id[any value].
Continues swipe card 1 > random id[any value]. => incorrect.

I want swipe card 1 > random id[value 1], if I take card leave RFID reader and put again.
It until return values is random id[value 1]in card 1 for me.

Swipe card 2 > random id[any value]. Swipe card 3 > random id[any value]. => It's ok.

I think this easy to imagine. Thanks to @Preston Guillot.

Thank you!!!

Upvotes: 1

Views: 59

Answers (1)

Valikhan Akhmedov
Valikhan Akhmedov

Reputation: 976

Just use Guid.NewGuid() instead explicit instanciation, it will generate 99.9 % unique ID.

Upvotes: 2

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