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Martin Fernandez
Asked: 2020-09-10 06:20:52 +0800 CST 2020-09-10 06:20:52 +0800 CST

Equivalent to VB.net's InputBox in C#?

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Given the number of times I have come across this question and have not found a clear or direct answer, I am going to formalize it here.

What is the InputBox equivalent of vb.netor VBAin C#?

c#

2 Answers

  1. Best Answer

    To get access to Inputboxit, you must make a bridge with the references of the controls, VisualBasicfor this you must follow the following steps.

    Step 1

    In the solutions explorer we look for the section Referencias, we right-click and click onAgregar referencia...

    Step 1

    Step 2

    Once inside we filter by visual, microsoft.visualbasic, VisualBasic, etc... and check the reference calledMicrosoft.VisualBasic

    Step 3

    We declare the reference entering using Microsoft.VisualBasic;at the beginning of our code

    enter image description here

    Step 4

    We call the control inside the function Interaction.InputBox();and assign the parameters it asks for, in the image below I put an example of the parameters it indicates, although the one intellisensefrom Visual studio helps a lot

    enter image description here

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  2. There is no equivalent

    InputBox [C#]

    but if there is the possibility of creating the form dynamically using code and encapsulating everything in a class

    create a class and put this code inside

    using System.Windows.Forms;
using System.Drawing;

public static DialogResult InputBox(string title, string promptText, ref string value)
{
  Form form = new Form();
  Label label = new Label();
  TextBox textBox = new TextBox();
  Button buttonOk = new Button();
  Button buttonCancel = new Button();

  form.Text = title;
  label.Text = promptText;
  textBox.Text = value;

  buttonOk.Text = "OK";
  buttonCancel.Text = "Cancel";
  buttonOk.DialogResult = DialogResult.OK;
  buttonCancel.DialogResult = DialogResult.Cancel;

  label.SetBounds(9, 20, 372, 13);
  textBox.SetBounds(12, 36, 372, 20);
  buttonOk.SetBounds(228, 72, 75, 23);
  buttonCancel.SetBounds(309, 72, 75, 23);

  label.AutoSize = true;
  textBox.Anchor = textBox.Anchor | AnchorStyles.Right;
  buttonOk.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
  buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;

  form.ClientSize = new Size(396, 107);
  form.Controls.AddRange(new Control[] { label, textBox, buttonOk, buttonCancel });
  form.ClientSize = new Size(Math.Max(300, label.Right + 10), form.ClientSize.Height);
  form.FormBorderStyle = FormBorderStyle.FixedDialog;
  form.StartPosition = FormStartPosition.CenterScreen;
  form.MinimizeBox = false;
  form.MaximizeBox = false;
  form.AcceptButton = buttonOk;
  form.CancelButton = buttonCancel;

  DialogResult dialogResult = form.ShowDialog();
  value = textBox.Text;
  return dialogResult;
}

    so you just do

    string value;
var dialogResult = NombreClass.InputBox("Titulo", "Descripcion:", ref value);

if(dialogResult == DialogResult.OK)
{
   TextBox1.Text = value;
}
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