在数据库中保存多个文件 [英] Save multiple files in database

问题描述

C#2008

我在flowlayout面板中显示多个图像文件，现在我想将这些文件保存在数据库中.如何选择这些文件的名称?

C# 2008

I am showing multiple images files in flowlayout panel and now I want to save these files in database. How can I select names of these files?

public frmMultiSelectFile()
        {
            InitializeComponent();
        InitializeOpenFileDialog();
        }

private void InitializeOpenFileDialog()
{
    // Set the file dialog to filter for graphics files.
    this.openFileDialog1.Filter =
        "Images (*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|" +
        "All files (*.*)|*.*";
    // Allow the user to select multiple images.
    this.openFileDialog1.Multiselect = true;
    this.openFileDialog1.Title = "My Image Browser";
   
}

private void butSelect_Click(object sender, EventArgs e)
        {
            DialogResult dr = this.openFileDialog1.ShowDialog();
            if (dr == System.Windows.Forms.DialogResult.OK)
            {
                // Read the files
                foreach (String file in openFileDialog1.FileNames)
                {
                    // Create a PictureBox.
                    try
                    {
                        PictureBox pb = new PictureBox();
                        Image loadedImage = Image.FromFile(file);
                        pb.Height = 100;
                        pb.Width = 115;
                        pb.Image = loadedImage;
                        pb.SizeMode=
                            PictureBoxSizeMode.StretchImage;

                        flowLayoutPanel1.Controls.Add(pb);
   
                    }
                   
                    catch (Exception ex)
                    {
                        // Could not load the image - probably related to Windows file system permissions.
                        MessageBox.Show("Cannot display the image: " + file.Substring(file.LastIndexOf('\\'))
                            + ". You may not have permission to read the file, or " +
                            "it may be corrupt.\n\nReported error: " + ex.Message);
                    }
                }

            }
        }

推荐答案

您应该创建一个List< string>作为表单级变量.然后在foreach循环中，将图片添加到面板中，将每个图片的路径另存为字符串，然后将其添加到列表中.这样，您将拥有用户选择的所有文件的列表，以供以后使用.

希望对您有帮助

You should create a List<string> as a form level variable. Then in your foreach loop where you add the pictures to the panel save the path of each one as a string, and add it to the List. That way you will have a list of all files selected by the user, to use later.

Hope this helps

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