-1

每当我尝试写入已打开的文件时，我都会收到此错误“文件已被另一个程序使用”，尽管我使用了“close（）”和“flush（）”命令，但它仍然给我错误，这里是我的代码：

private void Openbtn_Click(object sender, EventArgs e)
    {
        textBox1.Text = "";
        listView1.Items.Clear();
        OpenFileDialog ofd = new OpenFileDialog();
        ofd.Title = "Open GSMB File";
        ofd.Filter = "GSMB Files (*.gsmb)|*.gsmb|All Files (*.*)|*.*";
        if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {
            MessageBox.Show("File opened Succesfully!", "Info", MessageBoxButtons.OK, MessageBoxIcon.Information);
            path = ofd.FileName;
            BinaryReader br = new BinaryReader(File.OpenRead(path), Encoding.Unicode);
            BinaryReader brs = new BinaryReader(File.OpenRead(path), Encoding.Unicode);
            brs.BaseStream.Position = 0x4;
            menuItem9.Text = brs.ReadInt32().ToString();
            if (menuItem9.Text == "3620")
            {
                num_pointers = 204;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "54662")
            {
                num_pointers = 2372;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "9560")
            {
                num_pointers = 88;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "1126")
            {
                num_pointers = 130;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "342")
            {
                num_pointers = 16;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "6232")
            {
                num_pointers = 467;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "75698")
            {
                num_pointers = 498;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "9914")
            {
                num_pointers = 110;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "128")
            {
                num_pointers = 4;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "5394")
            {
                num_pointers = 156;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "12000")
            {
                num_pointers = 580;
                menuItem8.Text = num_pointers.ToString();
            }
            else 
            {
                MessageBox.Show("This is not a Pokémon Typing Adventure string file !", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            List<int> offsets = new List<int>();
            int startstr = 0x1C;
            br.BaseStream.Position = startstr;
            int startstrval = br.ReadInt32();
            for (int i = 4; i < (num_pointers * 4 + 1); i += 4)
            {
                br.BaseStream.Position = startstr + i;
                offsets.Add(br.ReadInt32() + startstrval);
            }
            Dictionary<int, string> values = new Dictionary<int, string>();
            for (int i = 0; i < offsets.Count; i++)
            {
                int currentOffset = offsets[i];

                int nextOffset = (i + 1) < offsets.Count ? offsets[i + 1] : (int)br.BaseStream.Length;

                int stringLength = (nextOffset - currentOffset - 1) / 2;

                br.BaseStream.Position = currentOffset;

                var chars = br.ReadChars(stringLength);
                values.Add(currentOffset, new String(chars));
            }
            foreach (int offset in offsets)
            {
                listView1.Items.Add(offset.ToString("X")).SubItems.Add(values[offset]);
             listView1.Items[offset].SubItems[1].Text.Replace(System.Environment.NewLine, "\n");
            }

            br.Close();
            br = null;
        }
        ofd.Dispose();
        ofd = null;
    }
private void menuItem10_Click(object sender, EventArgs e)
    {
        BinaryWriter bw = new BinaryWriter(File.OpenWrite(path));

        bw.BaseStream.Position = 0x20;
        int number_pointers = Convert.ToInt32(num_pointers);
        Encoding enc = Encoding.Unicode;

        bw.Write(number_pointers);

        int curr_pointer = 4 + number_pointers * 4;
        for (int i = 0; i < number_pointers; i++)
        {
            bw.Write(curr_pointer);
            curr_pointer += enc.GetByteCount(listView1.Items[i].SubItems[1].Text) + 2;
        }

        for (int i = 0; i < number_pointers; i++)
            bw.Write(enc.GetBytes(listView1.Items[i].SubItems[1].Text + '\0'));

        bw.Flush();
        bw.Close();
        bw = null;
    }

谢谢你，我对任何干扰表示歉意。PS：请不要发布无用的评论和答案，例如“在 google 中搜索”、“我们已经回答了这些类型的问题”等……我花了 5 个小时在 google 中寻找答案，除了使用 ofd 什么都没有出现.close()，我也在stackoverflow网站上搜索了类似的问题，同样的答案，谢谢。

4

3 回答 3

1

如果可能，应在using- 语句中使用所有一次性物品

http://msdn.microsoft.com/en-US/library/yh598w02(v=vs.80).aspx

如果您将所有一次性对象（BinaryReader、FileStream 等）放入这样的语句中，它会起作用

于 2012-09-25T19:42:52.510 回答
1

可能的罪魁祸首是你自己的程序！

正如 user287107 所说，如果您处理文件的句柄，您应该能够再次打开它以便稍后写入。

Also, sircapsalot has a good suggestion: make sure that everything is disposed of properly by using try {} finally {}.

于 2012-09-25T19:49:42.377 回答
0

由于您在此函数内部没有异常处理，因此如果发生异常，它将不会继续，因此永远不要执行该br.Close();函数。

您应该使用try { } finally { }以确保它已关闭。

private void Openbtn_Click(object sender, EventArgs e)
{
    textBox1.Text = "";
    listView1.Items.Clear();
    OpenFileDialog ofd = new OpenFileDialog();
    ofd.Title = "Open GSMB File";
    ofd.Filter = "GSMB Files (*.gsmb)|*.gsmb|All Files (*.*)|*.*";
    if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
    {
        try {
            MessageBox.Show("File opened Succesfully!", "Info", MessageBoxButtons.OK, MessageBoxIcon.Information);
            path = ofd.FileName;
            BinaryReader br = new BinaryReader(File.OpenRead(path), Encoding.Unicode);
            BinaryReader brs = new BinaryReader(File.OpenRead(path), Encoding.Unicode);
            brs.BaseStream.Position = 0x4;
            menuItem9.Text = brs.ReadInt32().ToString();
            if (menuItem9.Text == "3620")
            {
                num_pointers = 204;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "54662")
            {
                num_pointers = 2372;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "9560")
            {
                num_pointers = 88;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "1126")
            {
                num_pointers = 130;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "342")
            {
                num_pointers = 16;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "6232")
            {
                num_pointers = 467;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "75698")
            {
                num_pointers = 498;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "9914")
            {
                num_pointers = 110;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "128")
            {
                num_pointers = 4;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "5394")
            {
                num_pointers = 156;
                menuItem8.Text = num_pointers.ToString();
            }
            else if (menuItem9.Text == "12000")
            {
                num_pointers = 580;
                menuItem8.Text = num_pointers.ToString();
            }
            else 
            {
                MessageBox.Show("This is not a Pokémon Typing Adventure string file !", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            List<int> offsets = new List<int>();
            int startstr = 0x1C;
            br.BaseStream.Position = startstr;
            int startstrval = br.ReadInt32();
            for (int i = 4; i < (num_pointers * 4 + 1); i += 4)
            {
                br.BaseStream.Position = startstr + i;
                offsets.Add(br.ReadInt32() + startstrval);
            }
            Dictionary<int, string> values = new Dictionary<int, string>();
            for (int i = 0; i < offsets.Count; i++)
            {
                int currentOffset = offsets[i];

                int nextOffset = (i + 1) < offsets.Count ? offsets[i + 1] : (int)br.BaseStream.Length;

                int stringLength = (nextOffset - currentOffset - 1) / 2;

                br.BaseStream.Position = currentOffset;

                var chars = br.ReadChars(stringLength);
                values.Add(currentOffset, new String(chars));
            }
            foreach (int offset in offsets)
            {
                listView1.Items.Add(offset.ToString("X")).SubItems.Add(values[offset]);
             listView1.Items[offset].SubItems[1].Text.Replace(System.Environment.NewLine, "\n");
            }               
        }
        finally {
            br.Close();
            br = null;
        }
    }
    ofd.Dispose();
    ofd = null;
}
private void menuItem10_Click(object sender, EventArgs e)
    {
    BinaryWriter bw;
    try {
        bw = new BinaryWriter(File.OpenWrite(path));

        bw.BaseStream.Position = 0x20;
        int number_pointers = Convert.ToInt32(num_pointers);
        Encoding enc = Encoding.Unicode;

        bw.Write(number_pointers);

        int curr_pointer = 4 + number_pointers * 4;
        for (int i = 0; i < number_pointers; i++)
        {
            bw.Write(curr_pointer);
            curr_pointer += enc.GetByteCount(listView1.Items[i].SubItems[1].Text) + 2;
        }

        for (int i = 0; i < number_pointers; i++)
            bw.Write(enc.GetBytes(listView1.Items[i].SubItems[1].Text + '\0'));
    }
    finally {
        bw.Flush();
        bw.Close();
        bw = null;
    }
}

我也不确定您是否应该在逻辑的开头显示一个显示“文件已成功打开”的消息框。

于 2012-09-25T19:39:44.510 回答