将值从清单框保存到文本文件，然后打开文本文件并将保存的值重新填充回表单中

本文关键字：文本 文件 保存 新填充 填充 表单 单框 然后 | 更新日期: 2023-09-27 18:34:04

我正在尝试将所选项目从类型保存到文本文件（复选框框）。
我也将主要演员（树视图）保存到文本文件中
这部分有效，他们正在保存。
但是，当我尝试打开文本文件以将数据重新填充回表单时，
出现错误：

索引超出数组的范围。

以下是保存和打开函数的代码：

private void openDatabaseToolStripMenuItem_Click(object sender, EventArgs e)
{
   // Open the file and upload the information 
    openFileDialog1.ShowDialog();
    Stream s1 = openFileDialog1.OpenFile();
    StreamReader reader = new StreamReader(s1);
    saveDatabaseToolStripMenuItem.Enabled = true;
    string infomovie = reader.ReadLine();
    string[] select = infomovie.Split('#');
    int nline = select.Length;
    txtTitle.Text = select[0];
    txtYear.Text = select[1];
    txtDir.Text = select[2];
    txtDur.Text = select[3];
    int nactors = Convert.ToInt32(select[4]);
    // put the number of actors in the file
    for (int i = 0; i < nactors; i++)
    {
       tvActor.Nodes.Add(select[4 + i]);
    }//end of for loop
    int genre = Convert.ToInt32(select[5]);
    // put the number of actors in the file
    for (int i = 0; i < genre; i++)
    {
        cBoxType.Items.Add(select[5 + i]);
    }//end of for loop
    reader.Close();
}
private void saveDatabaseToolStripMenuItem_Click(object sender, EventArgs e)
{
    //save data enter into form to text file
    saveFileDialog1.ShowDialog();
    Stream textOut = saveFileDialog1.OpenFile();
    StreamWriter writer = new StreamWriter(textOut);
    //creates string called infomovie
    String infomovie = "";
    //prints parameters
    infomovie += txtTitle.Text + "#";
    infomovie += txtYear.Text + "#";
    infomovie += txtDir.Text + "#";
    infomovie += txtDur.Text + "#";
    //gets values from check list box 
    int genre = cBoxType.Items.Count;
    infomovie += genre.ToString() + "#";
    //gets values for tree view
    int nactors = tvActor.Nodes.Count;
    infomovie += nactors.ToString() + "#";
    for (int i = 0; i < nactors; i++)
    {
        //convert treeview to string
        infomovie += tvActor.Nodes[i].Text + ",";
    }
    //sep
    infomovie += "#";
    for (int i = 0; i < genre; i++)
    {
        if (cBoxType.GetItemCheckState(i) == CheckState.Checked)
        {
            //if statement to check which boxes are selected then converts to string
            infomovie += cBoxType.Items[i].ToString() + ",";
        }
    }
    //sep
    infomovie += "#";
    writer.WriteLine(infomovie);
    writer.Close();
}

将值从清单框保存到文本文件，然后打开文本文件并将保存的值重新填充回表单中

你的actor count stored at index 5，genre count is at 4和Actorlist at 6，用,分隔，所以你必须在索引 6 处获取元素，然后按,拆分它们，并循环它并将其添加到tvActor.Nodes 

 string[] actorlist= select[6].Split(',');
// Then Do loop here

流派列表也是如此。

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