Display Waiting /Updating Message While Time taking process

Question

0.00/5 (No votes)

See more:

I I just want to Display a another form while i Updating records to DB lets say it will take a while and during that time i want to load a new form and say its updating DB or something. i did nt use back ground worker.i actually want to display pop up Message with gif and just close from when updation complete. its working but when it did nt show loaded forms lables and images clearly.i cannot drag them its like stuck

C#

frmloading loading = new frmloading();
loading.StartPosition = FormStartPosition.CenterScreen;
loading.Show();
try
{
    //My coding....   
}
loading.Close();
MessageBox.Show("Sucessfully Updated!!!");
dataGridView1.DataSource = "";

Posted 13-Dec-15 20:23pm

Hesha

Updated 13-Dec-15 20:49pm

v5

Add a Solution

Comments

BillWoodruff 14-Dec-15 4:09am

If this is Windows Forms, and you are using 'Form.Show, not Form.ShowModal, I don't see why there should be any blocking of actions that affect the visual state of your Controls in another Form.

Please say more about what "when it did nt show loaded forms lables and images clearly" means in more detail. What do you see ? What don't you see ?

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CPallini · Answer 1 · 2015-12-13T20:50:00

Solution 1

Quote:
i did nt use back ground worker

That's the problem. In order Keep the GUI responsive you need to do the long-time-taking operation in another thread.

[update]
If you have 'crss-threading' issues then MSDN is waiting for you (have a good read): "How to: Make Thread-Safe Calls to Windows Forms Controls"[^].
[/update]

Posted 13-Dec-15 20:50pm

CPallini

Updated 13-Dec-15 23:36pm

v2

Comments

Hesha 14-Dec-15 3:10am

hi i did like that but im getting following error

?ex
{"Cross-thread operation not valid: Control 'dataGridView1' accessed from a thread other than the thread it was created on."}
Data: {System.Collections.ListDictionaryInternal}
HResult: -2146233079
HelpLink: null
InnerException: null
Message: "Cross-thread operation not valid: Control 'dataGridView1' accessed from a thread other than the thread it was created on."
Source: "System.Windows.Forms"
StackTrace: " at System.Windows.Forms.Control.get_Handle()\r\n at System.Windows.Forms.DataGridView.FlushDisplayedChanged()\r\n at System.Windows.Forms.DataGridView.PerformLayoutPrivate(Boolean useRowShortcut, Boolean computeVisibleRows, Boolean invalidInAdjustFillingColumns, Boolean repositionEditingControl)\r\n at System.Windows.Forms.DataGridView.ResetUIState(Boolean useRowShortcut, Boolean computeVisibleRows)\r\n at System.Windows.Forms.DataGridViewRowCollection.OnCollectionChanged_PreNotification(CollectionChangeAction cca, Int32 rowIndex, Int32 rowCount, DataGridViewRow& dataGridViewRow, Boolean changeIsInsertion)\r\n at System.Windows.Forms.DataGridViewRowCollection.OnCollectionChanged(CollectionChangeEventArgs e, Int32 rowIndex, Int32 rowCount, Boolean changeIsDeletion, Boolean changeIsInsertion, Boolean recreateNewRow, Point newCurrentCell)\r\n at System.Windows.Forms.DataGridViewRowCollection.ClearInternal(Boolean recreateNewRow)\r\n at System.Windows.Forms.DataGridView.RefreshCol
umnsAndRows()\r\n at System.Windows.Forms.DataGridView.OnDataSourceChanged(EventArgs e)\r\n at System.Windows.Forms.DataGridView.set_DataSource(Object value)\r\n at Exp_GFM.frmVarifyInvoices.submitdata1() in C:\\Users\\Heshan\\Documents\\Visual Studio 2015\\Projects\\Exp_GFM\\Exp_GFM\\frmVarifyInvoices.cs:line 436"
TargetSite: {IntPtr get_Handle()}

here was the code i tried

private void submitdata()
{

List<task> tasks = new List<task>();
tasks.Add(Task.Run(() => { loading(); }));
tasks.Add(Task.Run(() => { submitdata1(); }));
Task.WaitAll(tasks.ToArray());

}

CPallini 14-Dec-15 5:36am

See my updated solution.

Guti7 14-Dec-15 8:49am

I guess you need to switch back to UI thread to update UI.

Please check following article-
http://stackoverflow.com/questions/16668207/update-the-gui-from-another-thread-in-c-sharp-change-back-to-the-main-thread-o