保存文本的PDF文件强调了使用C# [英] save text highlighted in pdf file using C#
问题描述
我建打开任何文本文件(甚至是PDF使用iTextSharp的DLL)中的Windows窗体应用程序,并查看了丰富的特箱中的内容,搜索字段在那里我可以搜索特定的模式,将在突出显示所有可能的匹配金色。我创建了一个保存按钮。
I built a windows form application that opens any text file (even pdf using iTextSharp Dll) and view its contents in a rich tex box, a search field where i can search for a certain pattern, all possible matches to be highlighted in "Gold" color. I created a save button.
- 我怎么可以覆盖与文本的文本文件(.DOC)通过保留高亮
文本格式? - 我该怎么办与PDF相同的步骤?
(因为覆盖文件后,PDF将崩溃)
中的代码:
private void open_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
tb.Clear();
label1.Text = openFileDialog1.FileName;
if (label1.Text.Contains(".pdf"))
{
// create a reader (constructor overloaded for path to local file or URL)
string location = openFileDialog1.FileName;
PdfReader reader = new PdfReader(location);
StringBuilder text = new StringBuilder();
for (int page = 1; page <= reader.NumberOfPages; page++)
{
ITextExtractionStrategy strategy = new SimpleTextExtractionStrategy();
string currentText = PdfTextExtractor.GetTextFromPage(reader, page, strategy);
currentText = Encoding.UTF8.GetString(ASCIIEncoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(currentText)));
text.Append(currentText);
reader.Close();
}
tb.Text = text.ToString();
}
else
{
tb.Text = File.ReadAllText(label1.Text);
}
}
}
private void save_Click(object sender, EventArgs e)
{
SaveFileDialog saveFile1 = new SaveFileDialog();
if (saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
File.WriteAllText(saveFileDialog1.FileName, tb.Text);
}
}
private void search_Click(object sender, EventArgs e)
{
int index = 0;
while (index < tb.Text.LastIndexOf(sb.Text))
{
tb.Find(sb.Text,index,tb.TextLength,RichTextBoxFinds.None);
tb.SelectionBackColor = Color.Gold;
index = tb.Text.IndexOf(sb.Text, index) + 1;
}
}
在此先感谢!
Thanks in advance!
推荐答案
您可以请尝试使用这个与所有富文本格式代码相处的文字?
Can you please try using this to get text along with all rich text format codes?
string str = richTextBox.Rtf;
有关对于更多的信息和实施指引,这种情况下,请参考
的 http://www.codeproject.com/Articles/12932/节约型和恢复-RichTextBox的格式化文本 - 铝
For more information and implementation guidelines with respect to this context, please refer http://www.codeproject.com/Articles/12932/Saving-and-Restoring-RichTextBox-Formatted-Text-Al
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