在winform C＃中重新使用上次使用的数据

Question

I've developed one project in winform with c#. There i've used listbox , datagridview and textbox es . What i want to do is that, in the middle of execution accidentally if user closed the winform , we need to save those data and give it back when user restarts the project. For this , its better to use database or any other choice is there ? If we are using database how can we store those data dynamically ? is that better to use sqlite ? Can Anyone give me an idea ?

Answer 1

This is a very general question.You need to serialize the state by yourself somewhow but that depend on many things in your project.

Alternatively you can also take a look at Settings

this might also be helpful

Answer 2

Are you asking about when the user closes a single form or closes the application entirely?

If you just mean closing the single form, you can have the form data stored in a class outside the form class. Create a subclass of Main with properties for the form and have it instantiated just prior opening the form. It should probably implement IDisposable and call the GC after it's not needed.

Closing the application will require serialization and saving to a file and/or a database.

Answer 3

I also had to do something like this, I thought it would be best to use: this is a short way of using the settings, just for you c:

private void Form_Load(object sender, EventArgs e)
    {
        if (Properties.Settings.Default.SettingName != "")
        {
            TextBox1.text = Properties.Settings.Default.SettingName;
            //And so on
        }
    }



    private void Form_FormClosing(object sender, FormClosingEventArgs e)
    {
        Properties.Settings.Default.SettingName = //things you want to save;
        //Do it for the rest aswell
    }

"BlockquoteThis is a very general question.You need to serialize the state by yourself somewhow but that depend on many things in your project.

Alternatively you can also take a look at Settings

this might also be helpful" ~Kyle

PS: My reputation isn't high enough to comment, so thats why i had to do it like this.