Show Text In Datagrid Cell If I Close Form Without Saving

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Hi CodeProject Member.
i have a datagrid form . i want if i type some text in datagrid cell and close form without saving and again i reload form then old text should show in datagrid cell .

Thanks in Advance...

Posted 30-Mar-14 2:49am

guru14

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[no name] 30-Mar-14 8:52am

Well you have to save the data somewhere. Programming != magic.

guru14 30-Mar-14 8:59am

i know programming != magic .
if you know then tell me how to save somewhere.

[no name] 30-Mar-14 9:07am

If you know that then why did you ask for magic? I can't read your mind to know what it is that you have tried, what research you have done, what code you have written or what problem you have. Do you really expect me to waste my time trying to figure out where you want your data saved? What have you done?

gggustafson 30-Mar-14 11:45am

You are being testy. I don't need to waste my time reading your response if you continue responding poorly to an obviously new OP.

[no name] 30-Mar-14 13:57pm

Nobody asked you to waste any time at all. If you don't feel the need to read then don't. I don't feel like wasting my time reading your solution which is not what the OP asked for. So I guess we are even.

guru14 30-Mar-14 9:37am

i mentioned above what i am trying and wht's my problem. if you know the answer of my question then you give some solution instead of meaning less comments.
Thanks once again that you have given your important time to me.

[no name] 30-Mar-14 10:01am

As a matter of fact, you have not described any kind of a problem or asked any kind of a question. You just stated some nonsense about magically recreating data without saving it first. If you do not like meaningless comments then don't make meaningless postings on public websites. Show us what you have tried to do for yourself and describe an actual problem. Saving data in C# is very well documented and the fact that you are asking how to do it tells me that you are just too lazy to go look.

guru14 30-Mar-14 14:35pm

friend my posting not meaningless see below solution.if my question nonsense then you replied my nonsense question.. it means ?????????
and no need to show you what i tried. here not mention anywhere that you can not ask this type question. i request you please finish this matter here only . Thank you.

CHill60 30-Mar-14 10:46am

Do you know anything about databases or is it just the population of the grid that you are having a problem with? Also, is it a DataGrid (ASP) or DataGridView (WinForms)

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gggustafson · Answer 1 · 2014-03-30T06:08:00

The trick is to catch the ApplicationExit event. This is done by writing an event handler that will be invoked when the form is closed. I personally use the application exit as my trigger. You could also use the FormClosing event. An example:

C#

// ****************************************** Application_Exit

void Application_Exit ( object    sender,
                        EventArgs e )
    {

    // Place your data saving code here

    }

Then declare the event handler in your form constructor, like:

C#

Application.ApplicationExit +=
                new EventHandler (
                        Application_Exit );

Also in your form constructor include code to determine if there is any earlier saved data. The mere existence of a file should be sufficient. If so, retrieve it and populate your DataGrid.

Make sure that you save the user's data in a user-accessible user-unique file. I recommend against using cookies as they may be prohibited on the machine.

Hope that helps.