在richtextbox中显示数组数据

Question

我在表单中添加了RichTextBox控件。我想在ArrayList的{​​{1}}中显示数据。我怎么能这样做？

RichTextBox

Answer 1

我认为只要ArrayList中的对象是简单数据类型，您就可以尝试

try
{
     string filepath = "";
     string filename = "";
     OpenFileDialog ofd = new OpenFileDialog();
     ofd.Filter = "XML files|*.xml";
     if (ofd.ShowDialog() == DialogResult.OK)
     {
          filepath = ofd.FileName;
          txtPath.Text = filepath + filename;
          XMLParser objxmlparser = new XMLParser();
          ArrayList al =objxmlparser.readDataLogXml(txtPath.Text);
          for (int i = 0; i < al.Count; i++)
          {
              yourRichTextBox.Text += string.Format("{0}\r\n", al[i].ToString());
          }
      }
 }

否则，如果ArrayList中的对象是您创建的自定义对象，则需要覆盖您定义的自定义类中的ToString（）方法

public class YourCustomClass
{
    // Your Custom Fields

    // Your Custom Methods

    public override string ToString()
    {
        // Format how you want this object to display information about itself
        // The {0}, {1}, etc... are place holders for your custom fields
        return string.Format("Put what you want to display here: {0} {1} {2}", customField1, customField2, customField3)
    }
}