TextBox.SelectedText : TextBox « System.Windows.Forms « C# / C Sharp by API

1. C# / C Sharp by API
2. System.Windows.Forms
3. TextBox

TextBox.SelectedText

  

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;

partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void showButton_Click(object sender, EventArgs e)
    {
        if (inputBox.SelectionLength == 0)
        {
            MessageBox.Show("You need to select something inside the text box first");
        }
        else
        {
            System.Text.StringBuilder builder = new System.Text.StringBuilder();
            builder.Append(String.Format("The input box contains {0}\n", inputBox.Text));
            builder.Append(String.Format("You have selected {0} characters, starting at {1}\n", inputBox.SelectionLength, inputBox.SelectionStart));
            builder.Append(String.Format("The selection is {0}", inputBox.SelectedText));

            MessageBox.Show(builder.ToString());

        }
    }
}
partial class Form1
{
    private void InitializeComponent()
    {
        this.inputBox = new System.Windows.Forms.TextBox();
        this.showButton = new System.Windows.Forms.Button();
        this.SuspendLayout();
        // 
        // inputBox
        // 
        this.inputBox.Location = new System.Drawing.Point(16, 15);
        this.inputBox.Name = "inputBox";
        this.inputBox.Size = new System.Drawing.Size(421, 22);
        this.inputBox.TabIndex = 0;
        // 
        // showButton
        // 
        this.showButton.Location = new System.Drawing.Point(311, 46);
        this.showButton.Name = "showButton";
        this.showButton.Size = new System.Drawing.Size(126, 27);
        this.showButton.TabIndex = 1;
        this.showButton.Text = "Show selection";
        this.showButton.Click += new System.EventHandler(this.showButton_Click);
        // 
        // Form1
        // 
        this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
        this.ClientSize = new System.Drawing.Size(449, 87);
        this.Controls.Add(this.showButton);
        this.Controls.Add(this.inputBox);
        this.Name = "Form1";
        this.Text = "Form1";
        this.ResumeLayout(false);
        this.PerformLayout();

    }

    private System.Windows.Forms.TextBox inputBox;
    private System.Windows.Forms.Button showButton;
}
public class TextBoxSelection
{
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.Run(new Form1());
    }
}

   
    
  

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