Question

我正在尝试将所选项目从Type保存到文本文件（checklistbox）。
我还将主要演员（treeview）保存到文本文件
这部分有用，而且它们正在保存但是，当我尝试打开文本文件以将数据重新填充回表单时，我收到错误：

索引超出了数组的范围。

以下是我的保存和打开功能的代码：

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();
}

Answer 1

您的actor count stored at index 5以及genre count is at 4和Actorlist at 6以,分隔，因此您必须在索引6处获取元素，然后将其拆分为{{1}然后循环并将其添加到,

tvActor.Nodes

同样适用于GenreList ..

将checkedlistbox中的值保存到文本文件，然后打开文本文件并将保存的值填充回表单中

1 个答案: