Mixing
Keep opening OpenFileDialog until selecting valid file
I have code that opens the OpenFileDialog, I'm checking the size of the file to make sure it doesn't exceed specific limit.
But, if the user selected a big sized file I need to warn him and lead him back to the dialog to select a different file or click cancel.
This is what I've tried:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
while (dialog.ShowDialog() != DialogResult.Cancel)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
continue;
}
}
EDIT:
I also tried the following code but it opens the dialog each time the ShowDialog is called. So, if the user selected a file 3x the size the limit, the dialog will appear 3 times.
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
XtraMessageBox.Show("File size");
dialog.ShowDialog();
}
};
if (dialog.ShowDialog() == DialogResult.OK)
{
XtraMessageBox.Show("File Selected");
}
c# .net while-loop openfiledialog
edited Jan 25 at 21:56
E. Earl
137113
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
add a comment |
I have code that opens the OpenFileDialog, I'm checking the size of the file to make sure it doesn't exceed specific limit.
But, if the user selected a big sized file I need to warn him and lead him back to the dialog to select a different file or click cancel.
This is what I've tried:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
while (dialog.ShowDialog() != DialogResult.Cancel)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
continue;
}
}
EDIT:
I also tried the following code but it opens the dialog each time the ShowDialog is called. So, if the user selected a file 3x the size the limit, the dialog will appear 3 times.
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
XtraMessageBox.Show("File size");
dialog.ShowDialog();
}
};
if (dialog.ShowDialog() == DialogResult.OK)
{
XtraMessageBox.Show("File Selected");
}
c# .net while-loop openfiledialog
edited Jan 25 at 21:56
E. Earl
137113
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
add a comment |
I have code that opens the OpenFileDialog, I'm checking the size of the file to make sure it doesn't exceed specific limit.
But, if the user selected a big sized file I need to warn him and lead him back to the dialog to select a different file or click cancel.
This is what I've tried:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
while (dialog.ShowDialog() != DialogResult.Cancel)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
continue;
}
}
EDIT:
I also tried the following code but it opens the dialog each time the ShowDialog is called. So, if the user selected a file 3x the size the limit, the dialog will appear 3 times.
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
XtraMessageBox.Show("File size");
dialog.ShowDialog();
}
};
if (dialog.ShowDialog() == DialogResult.OK)
{
XtraMessageBox.Show("File Selected");
}
c# .net while-loop openfiledialog
edited Jan 25 at 21:56
E. Earl
137113
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
I have code that opens the OpenFileDialog, I'm checking the size of the file to make sure it doesn't exceed specific limit.
But, if the user selected a big sized file I need to warn him and lead him back to the dialog to select a different file or click cancel.
This is what I've tried:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
while (dialog.ShowDialog() != DialogResult.Cancel)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
continue;
}
}
EDIT:
I also tried the following code but it opens the dialog each time the ShowDialog is called. So, if the user selected a file 3x the size the limit, the dialog will appear 3 times.
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev)
{
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
XtraMessageBox.Show("File size");
dialog.ShowDialog();
}
};
if (dialog.ShowDialog() == DialogResult.OK)
{
XtraMessageBox.Show("File Selected");
}
c# .net while-loop openfiledialog
c# .net while-loop openfiledialog
edited Jan 25 at 21:56
E. Earl
137113
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
edited Jan 25 at 21:56
E. Earl
137113
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
edited Jan 25 at 21:56
E. Earl
137113
edited Jan 25 at 21:56
E. Earl
137113
edited Jan 25 at 21:56
E. Earl
137113
137113
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
asked Oct 7 '12 at 4:54
Nour SabounyNour Sabouny
2,92332850
2,92332850
add a comment |
add a comment |
4 Answers
4
active
oldest
votes
You are half-way there, the FileOk event is what you want to use. What you are missing is setting the e.Cancel property to true. That keeps the dialog opened and avoids you having to display it over and over again. Like this:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev) {
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000) {
MessageBox.Show("Sorry, file is too large");
ev.Cancel = true; // <== here
}
};
if (dialog.ShowDialog() == DialogResult.OK) {
MessageBox.Show(dialog.FileName + " selected");
}
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
add a comment |
ev.Cancel = true; Check if following piece of code serves your purpose?
public void SomeMethod()
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.FileOk += new CancelEventHandler(dialog_FileOk);
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.ShowDialog();
}
void dialog_FileOk(object sender, CancelEventArgs e)
{
OpenFileDialog dialog = sender as OpenFileDialog;
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
e.Cancel = true;
}
}
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
add a comment |
Yes as far as your requirement is concern, this is OK but in general opening Dialog after showing a prompt for Size is not the best way. Instead a prompt should be displayed, best is to display the validation error on the size from the main window. And it should be User's duty to select the proper file again by opening the File Dialog again according to Usability principles of HCI.
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
add a comment |
Add a handler to FileDialog.FileOk and let verify the file size inside their.
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
You are half-way there, the FileOk event is what you want to use. What you are missing is setting the e.Cancel property to true. That keeps the dialog opened and avoids you having to display it over and over again. Like this:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev) {
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000) {
MessageBox.Show("Sorry, file is too large");
ev.Cancel = true; // <== here
}
};
if (dialog.ShowDialog() == DialogResult.OK) {
MessageBox.Show(dialog.FileName + " selected");
}
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
add a comment |
You are half-way there, the FileOk event is what you want to use. What you are missing is setting the e.Cancel property to true. That keeps the dialog opened and avoids you having to display it over and over again. Like this:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev) {
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000) {
MessageBox.Show("Sorry, file is too large");
ev.Cancel = true; // <== here
}
};
if (dialog.ShowDialog() == DialogResult.OK) {
MessageBox.Show(dialog.FileName + " selected");
}
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
add a comment |
You are half-way there, the FileOk event is what you want to use. What you are missing is setting the e.Cancel property to true. That keeps the dialog opened and avoids you having to display it over and over again. Like this:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev) {
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000) {
MessageBox.Show("Sorry, file is too large");
ev.Cancel = true; // <== here
}
};
if (dialog.ShowDialog() == DialogResult.OK) {
MessageBox.Show(dialog.FileName + " selected");
}
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
You are half-way there, the FileOk event is what you want to use. What you are missing is setting the e.Cancel property to true. That keeps the dialog opened and avoids you having to display it over and over again. Like this:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.FileOk += delegate(object s, CancelEventArgs ev) {
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000) {
MessageBox.Show("Sorry, file is too large");
ev.Cancel = true; // <== here
}
};
if (dialog.ShowDialog() == DialogResult.OK) {
MessageBox.Show(dialog.FileName + " selected");
}
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
answered Oct 7 '12 at 14:32
Hans PassantHans Passant
794k10913172102
794k10913172102
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
add a comment |
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
Bingo, +1 for the correct answer, actually my approach is correct but it lack the else break; after the (if). but it makes the dialog flash, your way will keep the dialog opened and show the message before closing. Thanks a lot.
– Nour Sabouny
Oct 8 '12 at 4:40
add a comment |
ev.Cancel = true; Check if following piece of code serves your purpose?
public void SomeMethod()
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.FileOk += new CancelEventHandler(dialog_FileOk);
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.ShowDialog();
}
void dialog_FileOk(object sender, CancelEventArgs e)
{
OpenFileDialog dialog = sender as OpenFileDialog;
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
e.Cancel = true;
}
}
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
add a comment |
ev.Cancel = true; Check if following piece of code serves your purpose?
public void SomeMethod()
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.FileOk += new CancelEventHandler(dialog_FileOk);
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.ShowDialog();
}
void dialog_FileOk(object sender, CancelEventArgs e)
{
OpenFileDialog dialog = sender as OpenFileDialog;
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
e.Cancel = true;
}
}
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
add a comment |
ev.Cancel = true; Check if following piece of code serves your purpose?
public void SomeMethod()
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.FileOk += new CancelEventHandler(dialog_FileOk);
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.ShowDialog();
}
void dialog_FileOk(object sender, CancelEventArgs e)
{
OpenFileDialog dialog = sender as OpenFileDialog;
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
e.Cancel = true;
}
}
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
ev.Cancel = true; Check if following piece of code serves your purpose?
public void SomeMethod()
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.FileOk += new CancelEventHandler(dialog_FileOk);
dialog.Filter = "Jpeg files, PDF files, Word files|*.jpg;*.pdf;*.doc;*.docx";
dialog.ShowDialog();
}
void dialog_FileOk(object sender, CancelEventArgs e)
{
OpenFileDialog dialog = sender as OpenFileDialog;
var size = new FileInfo(dialog.FileName).Length;
if (size > 250000)
{
MessageBox.Show("File size exceeded");
e.Cancel = true;
}
}
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
edited Oct 8 '12 at 9:36
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
answered Oct 7 '12 at 5:25
RockWorldRockWorld
1,11121022
1,11121022
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
add a comment |
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
Actually I tried similar way but it's opening the dialog once for each wrong file selected, I will edit the question to add the code.
– Nour Sabouny
Oct 7 '12 at 13:29
add a comment |
Yes as far as your requirement is concern, this is OK but in general opening Dialog after showing a prompt for Size is not the best way. Instead a prompt should be displayed, best is to display the validation error on the size from the main window. And it should be User's duty to select the proper file again by opening the File Dialog again according to Usability principles of HCI.
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
add a comment |
Yes as far as your requirement is concern, this is OK but in general opening Dialog after showing a prompt for Size is not the best way. Instead a prompt should be displayed, best is to display the validation error on the size from the main window. And it should be User's duty to select the proper file again by opening the File Dialog again according to Usability principles of HCI.
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
add a comment |
Yes as far as your requirement is concern, this is OK but in general opening Dialog after showing a prompt for Size is not the best way. Instead a prompt should be displayed, best is to display the validation error on the size from the main window. And it should be User's duty to select the proper file again by opening the File Dialog again according to Usability principles of HCI.
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
Yes as far as your requirement is concern, this is OK but in general opening Dialog after showing a prompt for Size is not the best way. Instead a prompt should be displayed, best is to display the validation error on the size from the main window. And it should be User's duty to select the proper file again by opening the File Dialog again according to Usability principles of HCI.
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
answered Oct 7 '12 at 5:09
Furqan SafdarFurqan Safdar
12.4k114680
12.4k114680
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
add a comment |
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
Your rather correct, but closing the dialog and then showing a validation error icon, forces the user to open the dialog again, browse to the same folder and check again, which makes it harder for him.
– Nour Sabouny
Oct 8 '12 at 4:43
add a comment |
Add a handler to FileDialog.FileOk and let verify the file size inside their.
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
add a comment |
Add a handler to FileDialog.FileOk and let verify the file size inside their.
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
add a comment |
Add a handler to FileDialog.FileOk and let verify the file size inside their.
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
Add a handler to FileDialog.FileOk and let verify the file size inside their.
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
answered Oct 7 '12 at 5:27
dotINSolutiondotINSolution
21415
21415
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
add a comment |
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
Thanks, but see the new version of the question.
– Nour Sabouny
Oct 7 '12 at 13:33
add a comment |
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