Editable Shortcut Controls

Does anyone know how I can create an editable label control? I need my users to be able to edit shortcuts (also change parts of his style information), but have not found any useful information anywhere on the Internet.

Any help is generally appreciated

thank

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4 answers

You can create a custom control (it takes some work). The control can have standard control over the label inside, and when the user clicks the label (or goes into edit mode in some way), you can create an instance of the text box control and show it where the label control was. Thus, the user will get the illusion that the label control is turning into a text field. The user can edit the text of the labels in the text field, and when editing is finished, all you have to do is hide the text field and apply the changes to the text of the label.

If you also need to edit styles, you will have to display a panel with all the editable settings, and not with a single text field.

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TextBox, , . readOnly true.

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.

. TextBox, . :

Labeleditor

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication
{
    public partial class LabelEditor : Form
    {
        private System.Windows.Forms.TextBox textBox;

        public LabelEditor()
        {
            InitializeComponent();

            this.textBox = new System.Windows.Forms.TextBox();

            this.textBox.Dock = System.Windows.Forms.DockStyle.Fill;
            this.textBox.Location = new System.Drawing.Point(0, 0);
            this.textBox.Name = "textBox";
            this.textBox.Size = new System.Drawing.Size(100, 20);
            this.textBox.TabIndex = 0;
            this.textBox.KeyDown += new System.Windows.Forms.KeyEventHandler(this.OnKeyDown);

            this.AutoSize = true;
            this.ClientSize = new System.Drawing.Size(100, 20);
            this.Controls.Add(textBox);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.MinimumSize = new System.Drawing.Size(100, 20);
            this.Name = "LabelEditor";
            this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
        }

        public override string Text
        {
            get
            {
                if (textBox == null)
                    return String.Empty;

                return textBox.Text;
            }
            set
            {
                textBox.Text = value;
                ResizeEditor();                
            }
        }

        private void ResizeEditor()
        {
            var size = TextRenderer.MeasureText(textBox.Text, textBox.Font);
            size.Width += 20;

            this.Size = size;
        }

        private void OnKeyDown(object sender, KeyEventArgs e)
        {
            switch (e.KeyData)
            {
                case Keys.Escape:
                    DialogResult = DialogResult.Cancel;
                    this.Close();
                    break;
                case Keys.Return:
                    DialogResult = DialogResult.OK;
                    this.Close();
                    break;
            }
        }
    }
}

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

namespace WindowsFormsApplication
{
    public partial class Form1 : Form
    {
        private Label EditableLabel;

        public Form1()
        {
            InitializeComponent();

            this.EditableLabel = new System.Windows.Forms.Label();

            this.EditableLabel.AutoSize = true;
            this.EditableLabel.Location = new System.Drawing.Point(102, 81);
            this.EditableLabel.Text = "Click me to change...";
            this.EditableLabel.MouseDoubleClick += new System.Windows.Forms.MouseEventHandler(this.LabelMouseDoubleClick);

            this.Controls.Add(this.EditableLabel);
        }

        private void LabelMouseDoubleClick(object sender, MouseEventArgs e)
        {
            var label = sender as Label;

            if (label != null)
            {
                var editor = new LabelEditor();

                editor.Location = label.PointToScreen(new Point(e.X + 5, e.Y + 5));
                editor.Text = label.Text;

                if (DialogResult.OK == editor.ShowDialog())
                {
                    label.Text = editor.Text;
                }
            }
        }
    }
}
+1

, PropertyGrid ( Visual Studio ).

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Source: https://habr.com/ru/post/1733849/


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