combine creditcard fields

:      I have a textbox textcreditcardnum  dropdown expiration month, dropdown expiration year  and textbox creditID
I want to combine those values in one label  by showing last four digits of the txtcreditcardnum and the rest of them..how can I do that?

Something like this...
mylabel.text = Microsoft.VisualBasic.Right(textcreditcardnum.text, 4) & expirationmonth.selecteditem.text & " " & expirationyear & " " & creditID.text

or...

mylabel.text = textcreditcardnum.text.Substring(textcreditcardnum.text.Length - 4) & expirationmonth.selecteditem.text & " " & expirationyear & " " & creditID.text

finally...

mylabel.text = textcreditcardnum.text.Substring(textcreditcardnum.text.Length - 4) & expirationmonth.selecteditem.text & " " & expirationyear.selecteditem.text & " " & creditID.text

yes, I need this in C# and i need xxx fields untill last four in creditcard number

Try this....

You will have to adjust the control names...

mylabel.text == textcreditcardnum.text.Substring(textcreditcardnum.text.Length - 4) + expirationmonth.selecteditem.text + " " + expirationyear.selecteditem.text + " " + creditID.text

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with a semicolon at the end :)

You may wish to use this which is in C#

string ccnum = textcreditcardnum.Text.Substring(textcreditcardnum.Text-4);
txtResult.Text = ccnum.PadLeft(textcreditcardnum.Length, 'X') + " " + ddExpirationMonth.SelectedItem.Text + " " + ddExpirationYear.SelectedItem.Year + " " txtCreditID.Text;
// where ddExpirationMonth is the control ID of the dropdown expiration month and ddExpirationYear is the control ID of the dropdown expiration year and txtCreditID is the ID of the Credit ID textbox

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Oops correction please.

string ccnum = textcreditcardnum.Text.Substring(textcreditcardnum.Text.Length-4);
txtResult.Text = ccnum.PadLeft(textcreditcardnum.Text.Length, 'X') + " " + ddExpirationMonth.SelectedItem.Text + " " + ddExpirationYear.SelectedItem.Text + " " txtCreditID.Text;
// where ddExpirationMonth is the control ID of the dropdown expiration month and ddExpirationYear is the control ID of the dropdown expiration year and txtCreditID is the ID of the Credit ID textbox and you may assign this to a text box txtResult or to a variable.

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it is exaclty what I was looking for but giving me error on the highliging txtCardID as a expecting ; it says
=ccnum.PadLeft(txtCreditCard.Text.Length, 'X') + " " + ddExpirationMonth.SelectedItem.Text + " " + ddExpirationYear.SelectedItem.Text + " " txtCardID.Text;

you missed a +.  i have modified your code as below.  Please note that, the control IDs that I have specified are sample and you need to replace them with the actual Control IDs.

ccnum.PadLeft(txtCreditCard.Text.Length, 'X') + " " + ddExpirationMonth.SelectedItem.Text + " " + ddExpirationYear.SelectedItem.Text + " " + txtCardID.Text;

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string ccnum = txtCreditCard.Text.Substring(txtCreditCard.Text-4); on there I get error operator - cannot  apply string and int it says

i added like this
txtCreditCard.Text.Trim().Substring(txtCreditCard.Text.Length - 4);
is it correct?

yes. sorry for that as i have once again posted the correct code above, just next to the incorrect one.  You can refer to that above.

perfect it works, only thing there are so close to each other  I need to something maybe "/" to seperate values from each other ?

Yes you may separate each value by replacing the below
      " "
with
     " / "

I put those didnt look good, can we put like this to the string. is this correct way?

 ccnum.PadLeft(txtCreditCard.Text.Length, 'X') + " Exp Date: " + ddExpirationMonth.SelectedItem.Text + " " + ddExpirationYear.SelectedItem.Text + " Card ID: " + txtCardID.Text;

 

thank you soo much!!!!