各位大侠：
    你们好，求助一个问题。我用openFileDialog打开了一些文件，但是在listBox1中显示的都带有路径的文件名，怎么样才能够把这些路径取消掉，不显示路径，直接显示文件名。谢谢各位了。我的代码如下
 private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)
        {   int i;
           Stream myStream;
         //  FileStream GetFile;
            OpenFileDialog openFileDialog1 = new OpenFileDialog();
            openFileDialog1.InitialDirectory = "D:\\岩性密度测井";
            openFileDialog1.Filter = "txtfiles(*.txt)|*.txt|inp文件(*.inp)|*.inp|All files(*,*)|*.*";
            openFileDialog1.FilterIndex=2;
            openFileDialog1.Multiselect = true;
            openFileDialog1.RestoreDirectory=true;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                if ((myStream = openFileDialog1.OpenFile()) != null)
                { myStream.Close(); }
                string[] str1 =openFileDialog1.FileNames;
                for (i = 0; i < str1.Length; i++)
                {
                   listBox1.Items.Add(str1[i]);
                }
            
            }

        }

listBox1.Items.Add(str1[i].Substring(str1[i].LastIndexOf('\')));

试试吧

   int i;
            Stream myStream;
            //  FileStream GetFile;
            OpenFileDialog openFileDialog1 = new OpenFileDialog();
            openFileDialog1.InitialDirectory = "D:\\岩性密度测井";
            openFileDialog1.Filter = "txtfiles(*.txt)|*.txt|inp文件(*.inp)|*.inp|All files(*,*)|*.*";
            openFileDialog1.FilterIndex = 2;
            openFileDialog1.Multiselect = true;
            openFileDialog1.RestoreDirectory = true;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                if ((myStream = openFileDialog1.OpenFile()) != null)
                { myStream.Close(); }
                string[] str1 = openFileDialog1.FileNames;
 
                //for (i = 0; i < str1.Length; i++)
                //{
                //    listBox1.Items.Add(str1[i]);
                //}
 
 
                foreach (string mystring in openFileDialog1.FileNames)
                {
                    string op = mystring.Substring(mystring.LastIndexOf("\\") + 1);
 
                    this.listBox1.Items.Add(op);
                 
                 
                 
                }
 
            }