WinForm控件之【RichTextBox】

基本介绍

高级文本控件，提供高级文本输入和编辑功能，如字符或段落格式的设置。

常设置属性

DetectUrls：指示是否自动将URL的格式设置为链接；

EnableAutoDragDrop：是否启用文本、图片和其他数据的拖放操作；

BorderStyle：指示编辑控件是否应带有边框或边框类型；

Lines：多行编辑中的文本行，作为字符串值的数组；

MaxLength：指定可以在编辑控件中输入的最大字符数；

Multiline：控制编辑控件的文本是否能够跨越多行；

ScrollBars：定义控件滚动条的行为；

WordWrap：指示多行编辑控件是否自动换行；

Enabled：指示是否启用该控件，true为启用状态用户可编辑，false为禁用状态用户不可编辑；

Name：指示代码中用来标识该对象的名称；

Text：获取或设置多格式文本框中的文本；

Rtf：获取或设置控件文本，包括所有RTF格式代码；

事例举例

 

相关代码

　　　　 private string rtf;
        /// <summary>
        /// 多信息文本格式内容
        /// </summary>
        public string Rtf
        {
            get
            {
                return this.richTextBox1.Rtf;
            }
            set
            {
                this.richTextBox1.Rtf = value;
            }
        }
        private string textValue;
        /// <summary>
        /// 文本格式内容
        /// </summary>
        public string TextValue
        {
            get
            {
                return this.richTextBox1.Text;
            }
            set
            {
                this.richTextBox1.Text = value;
            }
        }

        private OpenFileDialog openImageDialog = new OpenFileDialog();
        private ColorDialog colorDialog1 = new ColorDialog();

        //工具栏按钮项单击事件触发字符和段落的格式设置
        private void toolStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {
            if (e.ClickedItem.Tag != null)
            {
                switch (e.ClickedItem.Tag.ToString())
                {
                    case "Bold":
                        if (this.richTextBox1.SelectionFont != null)
                        {
                            this.richTextBox1.SelectionFont = new Font(this.richTextBox1.SelectionFont, this.richTextBox1.SelectionFont.Style ^ FontStyle.Bold);
                        }
                        else
                        {
                            this.richTextBox1.SelectionFont = new Font(this.richTextBox1.Font, this.richTextBox1.Font.Style ^ FontStyle.Bold);
                        }

                        break;
                    case "Itilic":

                        if (this.richTextBox1.SelectionFont != null)
                        {
                            this.richTextBox1.SelectionFont = new Font(this.richTextBox1.SelectionFont, this.richTextBox1.SelectionFont.Style ^ FontStyle.Italic);
                        }
                        else
                        {
                            this.richTextBox1.SelectionFont = new Font(this.richTextBox1.Font, this.richTextBox1.Font.Style ^ FontStyle.Italic);
                        }
                        break;
                    case "Underline":
                        if (this.richTextBox1.SelectionFont != null)
                        {
                            this.richTextBox1.SelectionFont = new Font(this.richTextBox1.SelectionFont, this.richTextBox1.SelectionFont.Style ^ FontStyle.Underline);
                        }
                        else
                        {
                            this.richTextBox1.SelectionFont = new Font(this.richTextBox1.Font, this.richTextBox1.Font.Style ^ FontStyle.Underline);
                        }
                        break;
                    case "Cut":
                        this.richTextBox1.Cut();
                        break;
                    case "Copy":
                        this.richTextBox1.Copy();
                        break;
                    case "Paste":
                        this.richTextBox1.Paste();
                        break;
                    case "InsertImg":
                        if (this.openImageDialog.ShowDialog() == DialogResult.OK)
                        {
                            string fileName = this.openImageDialog.FileName;
                            try
                            {
                                Bitmap data = new Bitmap(fileName);
                                Clipboard.SetDataObject(data);
                                DataFormats.Format clipFormat = DataFormats.GetFormat(DataFormats.Bitmap);
                                if (this.richTextBox1.CanPaste(clipFormat))
                                {
                                    this.richTextBox1.Paste(clipFormat);
                                }
                            }
                            catch (Exception exception)
                            {
                                MessageBox.Show("图片插入失败" + exception.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                            }
                        }

                        break;
                    case "Color":
                        if (this.colorDialog1.ShowDialog() == DialogResult.OK)
                        {
                            this.richTextBox1.SelectionColor = this.colorDialog1.Color;
                        }
                        break;
                    case "Undo":
                        this.richTextBox1.Undo();
                        break;
                    case "Redo":
                        this.richTextBox1.Redo();
                        break;
                    case "Left":
                        this.richTextBox1.SelectionAlignment = HorizontalAlignment.Left;

                        break;
                    case "Center":
                        this.richTextBox1.SelectionAlignment = HorizontalAlignment.Center;

                        break;
                    case "Right":
                        this.richTextBox1.SelectionAlignment = HorizontalAlignment.Right;

                        break;
                    default:

                        break;
                }
            }
        }

        //字符或段落的字体设置
        private void tscb_Typeface_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.tscb_Typeface.SelectedItem != null)
            {
                string familyName = this.tscb_Typeface.SelectedItem.ToString().Trim();
                if (this.richTextBox1.SelectionFont != null)
                {
                    this.richTextBox1.SelectionFont = new Font(familyName, this.richTextBox1.SelectionFont.Size, this.richTextBox1.SelectionFont.Style);
                }
                else
                {
                    this.richTextBox1.SelectionFont = new Font(familyName, this.richTextBox1.Font.Size, this.richTextBox1.Font.Style);
                }
            }

        }

        //字符或段落的字号设置
        private void tscb_Size_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.tscb_Size.SelectedItem != null)
            {
                int num = Convert.ToInt32(this.tscb_Size.SelectedItem.ToString().Trim());
                if (this.richTextBox1.SelectionFont != null)
                {
                    this.richTextBox1.SelectionFont = new Font(this.richTextBox1.SelectionFont.FontFamily, (float)num, this.richTextBox1.SelectionFont.Style);
                }
                else
                {
                    this.richTextBox1.SelectionFont = new Font(this.richTextBox1.Font.FontFamily, (float)num, this.richTextBox1.Font.Style);
                }
            }

        }