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I have a variable which is an array of strings and I want to print their values, but that values and consequently the amount of them is only set after the system works.
How can I print on a MessageBox, for example, all values of all positions in one MessageBox instead of making a for and print one by one?
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Another option would be the following
var dataTransacao = new string[] {"01/01/2015", "02/02/2015", "03/03/2015" };
MessageBox.Show(String.Format("Datas de transação: {0}", String.Join(", ", dataTransacao)), MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
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You can use the string.Join()
In the example below the variable strDados contains all items from array comma-separated.
string[] dados = { "um", "dois", "três" };
string strDados = string.Join(", ", dados);
MessageBox.Show(strDados);
The MessageBox will show:
one, two, three
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Simply uses String.Join
string.Join(", ", valores);
Fiddle: https://dotnetfiddle.net/5nh3wo
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You can carry out this printing using the function Aggregate. For example:
MessageBox.Show(dataTransacao.Aggregate( (acumulador, posicao) => acumulador + ", " + posicao, "Título"), MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
If you declare dataTransacao thus:
var dataTransacao = new string[] {"01/01/2015", "02/02/2015", "03/03/2015" };
Will come out in the MessageBox thus:
01/01/2015, 02/02/2015, 03/03/2015
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The positions of a string are
chars. This is exactly what you want to print?– Leonel Sanches da Silva
@Ciganomorrisonmendez, are not char, are string,
string[] dataTransacao = null;– Jeremias Santos
So it’s a vector of
string.stringis a vector by definition (see 4th example). I’ll put an answer to you.– Leonel Sanches da Silva