如何將數據從富文本框傳輸到另一個富文本框 WPF C#

Question

嗨，我在將富文本框中的數據顯示或傳輸到其他富文本框時遇到問題...

richtextbox1.Document = richtextbox2.Document; //This will be the idea..

實際上我打算做的是，我想將我的數據從我的數據庫傳輸到我的列表視圖，它將顯示為

SQLDataEHRemarks = myData["remarks"].ToString();// Here is my field from my database which is set as Memo
RichTextBox NewRichtextBox = new RichTextBox();// Now i created a new Richtextbox for me to take the data from SQLDataEHRemarks...
NewRichtextBox.Document.Blocks.Clear();// Clearing
TextRange tr2 = new TextRange(NewRichtextBox.Document.ContentStart, NewRichtextBox.Document.ContentEnd);// I found this code from other forum and helps me a lot by loading data from the database....
MemoryStream ms2 = GetMemoryStreamFromString(SQLDataEHRemarks);//This will Convert to String
tr2.Load(ms2, DataFormats.Rtf);//then Load the Data to my NewRichtextbox

現在我想要做的是，我要將這些數據加載到我的 ListView .. 或其他控件，如文本塊或文本框...

_EmpHistoryDataCollection.Add(new EmployeeHistoryObject{
EHTrackNum = tr2.ToString()  // The problem here is it will display only the first line of the paragraph.. not the whole paragraph
}); 

Answer 1

使用TextRange的Text屬性而不是.ToString()

以字符串形式獲取RichTextBox內容的方法：

public static string GetStringFromRichTextBox(RichTextBox richTextBox)
{
    TextRange textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
    return textRange.Text;
}

獲取RichTextBox內容為富文本的方法：

public static string GetRtfStringFromRichTextBox(RichTextBox richTextBox)
{
    TextRange textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
    MemoryStream ms = new MemoryStream();
    textRange.Save(ms, DataFormats.Rtf);

    return Encoding.Default.GetString(ms.ToArray());
}

編輯：您可以通過執行以下操作將 GetRtfStringFromRichTextBox() 返回的富文本放入另一個RichText控件中：

FlowDocument fd = new FlowDocument();
MemoryStream ms = new MemoryStream(Encoding.ASCII.GetBytes(richTextString));
TextRange textRange = new TextRange(fd.ContentStart, fd.ContentEnd);
textRange.Load(ms, DataFormats.Rtf);
richTextBox.Document = fd;

Answer 2

不會將 RichTextBox 的內容作為字符串獲取，只是類似於以下內容（在 VB.Net 中）

Dim strText as string = MyRTB.text