写了一个记事本
错误地方已加粗 求大神帮助处理using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 记事本
{
public partial class frmMain : Form
{
public string fname = "";
public bool modified = false;
string fileDialongFilter = "文本文件|*.cs;*.htm;*.html;*.vb|所有文件|*.*";
private object fongname;
private readonly int lenfth;
public frmMain()
{
InitializeComponent();
}
private void Open()
{
openFileDialog1.Title = "打开";
openFileDialog1.FileName = "";
openFileDialog1.Filter = this.fileDialongFilter;
openFileDialog1.FilterIndex = 1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
fname = openFileDialog1.FileName;
rtb1.LoadFile(fname, RichTextBoxStreamType.PlainText);
modified = false;
}
}
private DialogResult NeedSave()
{
DialogResult result = DialogResult.None;
if (modified)
{
result = MessageBox.Show("是否保存数据", "提示", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
Save();
}
}
return result;
}
private void Save()
{
if (fname == "")
{
SaveAs();
}
else
{
rtb1.SaveFile(fname, RichTextBoxStreamType.PlainText);
modified = false;
}
}
private void SaveAs()
{
saveFileDialog1.Title = "另存为";
this.saveFileDialog1.Filter = "文本文件|*.txt;";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
if (saveFileDialog1.FileName != "")
{
rtb1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText);
fname = saveFileDialog1.FileName;
modified = false;
}
}
}
private void frmMain_Load(object sender, EventArgs e)
{
cbxFontName.Items.Clear();
foreach (FontFamily ff in FontFamily.Families)
{
if (ff.IsStyleAvailable(FontStyle.Regular & FontStyle.Underline & FontStyle.Bold & FontStyle.Italic & FontStyle.Strikeout))
{
cbxFontName.Items.Add(ff.Name);
}
}
cbxFontName.Text = rtb1.Font.Name;
for (int i = 22; i < 72; i++)
cbxFontSize.Items.Add(i);
cbxFontName.Text = rtb1.Font.Name;
for (int i = 5; i <= 20; i++)
cbxFontSize.Items.Add(i);
for (int i = 22; i < 72; i += 2)
cbxFontSize.Items.Add(i);
cbxFontName.Text = rtb1.Font.Name;
cbxFontSize.Text = ((int)(rtb1.Font.Size)).ToString();
MenuItemNew.PerformClick();
}
private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
{
if (NeedSave() == DialogResult.Cancel)
e.Cancel = true;
}
private void MenuItemNew_Click(object sender, EventArgs e)
{
if(NeedSave()!=DialogResult.Cancel)
{
rtb1.ResetText();
modified = false;
fname = "";
}
}
private void MenuItemOpen_Click(object sender, EventArgs e)
{
Open();
}
private void MenuItemSave_Click(object sender, EventArgs e)
{
Save();
}
private void MenuItemSaveAs_Click(object sender, EventArgs e)
{
SaveAs();
}
private void MenuItemExit_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void MenuItemUndo_Click(object sender, EventArgs e)
{
rtb1.Undo();
}
private void MenuItemWoedWrap_Click(object sender, EventArgs e)
{
rtb1.WordWrap = MenuItemWoedWrap.Checked;
}
private void MenuItemRedo_Click(object sender, EventArgs e)
{
rtb1.Redo();
}
private void MenuItemCut_Click(object sender, EventArgs e)
{
rtb1.Cut();
}
private void MenuItemCopy_Click(object sender, EventArgs e)
{
rtb1.Copy();
}
private void MenuItemPaste_Click(object sender, EventArgs e)
{
rtb1.Paste();
}
private void MenuItemAll_Click(object sender, EventArgs e)
{
rtb1.SelectAll();
}
private void MenuItemFind_Click(object sender, EventArgs e)
{
rtb1.FindForm();
}
private void MenuItemReplace_Click(object sender, EventArgs e)
{
rtb1.Replace();
}
private void MenuItemFont_Click(object sender, EventArgs e)
{
if(fontDialog1.ShowDialog()==DialogResult.OK)
{
rtb1.SelectionFont = fontDialog1.Font;
}
}
private void MenuItemBackColor_Click(object sender, EventArgs e)
{
}
private void toolNew_Click(object sender, EventArgs e)
{
MenuItemNew_Click(null, null);
}
private void toolOpen_Click(object sender, EventArgs e)
{
MenuItemOpen_PerformClick(sender,e);
}
private void MenuItemOpen_PerformClick(object sender, EventArgs e)
{
throw new NotImplementedException();
}
private void toolSave_Click(object sender, EventArgs e)
{
MenuItemSave_Click(sender, e);
}
private void toolCopy_Click(object sender, EventArgs e)
{
MenuItemCopy_Click();
}
private void MenuItemCopy_Click()
{
throw new NotImplementedException();
}
private void toolCut_Click(object sender, EventArgs e)
{
MenuItemCut_Click();
}
private void MenuItemCut_Click()
{
throw new NotImplementedException();
}
private void toolPaste_Click(object sender, EventArgs e)
{
MenuItemPaste_Click();
}
private void MenuItemPaste_Click()
{
throw new NotImplementedException();
}
private void toolUndo_Click(object sender, EventArgs e)
{
MenuItemRedo_Click();
}
private void MenuItemRedo_Click()
{
throw new NotImplementedException();
}
private void toolRedo_Click(object sender, EventArgs e)
{
MenuItemRedo_Click();
}
private void toolSlecletAll_Click(object sender, EventArgs e)
{
MenuItemSlecletall_Click();
}
private void MenuItemSlecletall_Click()
{
throw new NotImplementedException();
}
private void cbxFontName_SelectedIndexChanged(object sender, EventArgs e)
{
this.SetSelectionTxetFont(cbxFontName.Text.Trim());
}
private void SetSelectionTxetFont(string v)
{
throw new NotImplementedException();
}
private void cbxFontSize_SelectedIndexChanged(object sender, EventArgs e)
{
float size;
if(float.TryParse(cbxFontSize.Text,out size))
{
if (size >= 5.0)
this.SetSelectionTextFont(size);
}
}
private void toolBold_Click(object sender, EventArgs e)
{
this.SetSelectionTextFont(FontStyle.Bold);
}
private void toolItalic_Click(object sender, EventArgs e)
{
this.SetSelectionTextFont(FontStyle.Italic);
}
private void toolStripButton12_Click(object sender, EventArgs e)
{
this.SetSelectionTextFont(FontStyle.Underline);
}
private void SetSelectionTextFont(RichTextBox rtb, string fontname, float fontsize, FontStyle fontstyle)
{
int currentPosition = rtb.SelectionStart;
int length = rtb.SelectionLength;
RichTextBox temp = newRichTextBox();
temp.Rtf = rtb.SelectedRtf;
for (int i = 0; i < length; i++)
{
temp.Select(i, 1);
temp.SelectionFont = newFont(fongname == null || fontname == "" ? temp.SelectionFont.Name : fontname,
fontsize < 5 ? temp.SelectionFont.Size : fontsize, temp.SelectionFont.Style ^ fontstyle);
}
temp.Select(0, lenfth);
rtb.SelectedRtf = temp.SelectedRtf;
rtb.SelectionStart = currentPosition;
rtb.Select(currentPosition, length);
rtb.Focus();
}
private Font newFont(string v1, float v2, object p)
{
throw new NotImplementedException();
}
private RichTextBox newRichTextBox()
{
throw new NotImplementedException();
}
private void SetSelectionTextFont(string fontname)
{
this.SetSelectionTextFont(rtb1, fontname, 0, FontStyle.Regular);
}
private void SetSelectionTextFont(float fontsize)
{
this.SetSelectionTextFont(rtb1, "", fontsize, FontStyle.Regular);
}
private void SetSelectionTextFont(FontStyle fontstyle)
{
this.SetSelectionTxetFont(rtb1, "", fontstyle);
}
private void SetSelectionTxetFont(RichTextBox rtb1, string v, FontStyle fontstyle)
{
throw new NotImplementedException();
}
private void rtb1_TextChanged(object sender, EventArgs e)
{
modified = true;
}
private void rtb1_SelectionChanged(object sender, EventArgs e)
{
int lineNum = rtb1.GetLineFromCharIndex(rtb1.SelectionStart);
int colNum = rtb1.SelectionStart - rtb1.GetFirstCharIndexFromLine(lineNum);
try
{
msg1.Text = String.Format("行:{0},列:{1}", lineNum, colNum);
}
catch(Exception x)
{
msg1.Text = x.Message;
}
if(rtb1.SelectionType==RichTextBoxSelectionTypes.Text)
{
cbxFontName.Text = rtb1.SelectionFont.Name;
cbxFontSize.Text = rtb1.SelectionFont.Size.ToString();
}
}
}
}
