Re: Listview Subitems index out of range - C# Discussion Boards

Re: C# Save Application Layout on application exit and reload it on application start.

shaktisinh12-Aug-09 3:27

shaktisinh

12-Aug-09 3:27

Dear Arindam
Thanks,
I do the same thing but i am unable to serialize class as it contains
property of type TabControl.

Message Removed

13-Aug-09 0:35

shaktisinh

13-Aug-09 0:35

Message Removed

Re: C# Save Application Layout on application exit and reload it on application start.

Arindam Sinha15-Aug-09 13:14

Arindam Sinha

15-Aug-09 13:14

Hi Shakti,
Today got sometime and posted one article [^]which might help you.

Keep me posted if this helps.

Regards,
Arindam Sinha
MyBlog - http://arindamsinha.wordpress.com/
Please give your feedback on this answer.

Re: C# Save Application Layout on application exit and reload it on application start.

shaktisinh16-Aug-09 19:40

shaktisinh

16-Aug-09 19:40

Dear Arindam,
Application settings are read-Only
we cant assign value to them.

UserPreferenceSample.Settings defaultSettings= new Settings();
defaultSettings.FormForeColor = this.ForeColor;

This code ll give design time error.
Property or indexer 'project...' cannot be assigned to -- it is read only

if it is possible to assign value to application settings than please let me know how.?
Thanking you

Re: C# Save Application Layout on application exit and reload it on application start.

Arindam Sinha16-Aug-09 22:29

Arindam Sinha

16-Aug-09 22:29

shaktisinh wrote:
Application settings are read-Only
we cant assign value to them.

Did you go through my article? I think it was clearly mentioned how the User Preferences can saved in Application Settings. Also, I have provided a sample application with source code. You can simulate the same thing there.

shaktisinh wrote:
UserPreferenceSample.Settings defaultSettings= new Settings();
defaultSettings.FormForeColor = this.ForeColor;

Yes..It was a typo. I have modified the code in the article[^]. I have posted the updated article[^] in CodeProject also.
But I guess you have not opened my source code yet Frown | :(

. There you should have got the proper code. Keep me posted on this. if this resolves your problem

Regards,
Arindam Sinha
MyBlog - http://arindamsinha.wordpress.com/
Please give your feedback on this answer.

Re: C# Save Application Layout on application exit and reload it on application start.

Mycroft Holmes7-Aug-09 22:09

Mycroft Holmes

7-Aug-09 22:09

And I thought my work was irrelevant. Try this article[^].

Never underestimate the power of human stupidity
RAH

Listview Subitems index out of range

iNutR7-Aug-09 16:48

iNutR

7-Aug-09 16:48

well im having listview problems.
my code is not letting me display a variable in listview subitem[3]
displaying the same varible in subitem[0] or [1] or [2] works fine, just 3 and onwards.

it says the index is out of range.

ive tried everything i can think of :S

heres my code:

public void button1_Click(object sender, EventArgs e)
{
{

int iCount = lvAccounts.Items.Count;

ListViewItem[] accUserPass = new ListViewItem[iCount];
lvAccounts.Items.CopyTo(accUserPass, 0);

for (int i = 0; i < accUserPass.Length; i++)
{

foreach (ListViewItem item in lvAccounts.Items)
{

// i defined my variables here

accUserPass[i].SubItems[2].Text = sec;
accUserPass[i].SubItems[3].Text = validpro;

}

}

ive manually defines column headers:

public RapidCheck()
{
InitializeComponent();
lvAccounts.Columns.Add("Login", 80, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Password", 80, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Security", 75, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Expiry Date", 120, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Rapidpoints", 80, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Email", 80, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Ref Points", 80, HorizontalAlignment.Left);
lvAccounts.Columns.Add("Files", 50, HorizontalAlignment.Left);

}

still not working :S

please help

Re: Listview Subitems index out of range

Arindam Sinha7-Aug-09 22:12

Arindam Sinha

7-Aug-09 22:12

You are asking to debug your code.. Poke tongue | ;-P

Anyway, from your code I can suggest some hint..

iNutR wrote:
for (int i = 0; i < accUserPass.Length; i++)
{

foreach (ListViewItem item in lvAccounts.Items)
{

// i defined my variables here

accUserPass[i].SubItems[2].Text = sec;
accUserPass[i].SubItems[3].Text = validpro;

}

}

My observations -
1. Why do you need

for (int i = 0; i < accUserPass.Length; i++)

?
You already have inner foreach which should be enough.
2. If you use only one foreach (after removing the

for

), then you should use the

ListViewItem item

instead of that array of things.

Keep me posted if this helps. Smile | :)

Regards,
Arindam Sinha
MyBlog - http://arindamsinha.wordpress.com/
Please give your feedback on this answer.

Re: Listview Subitems index out of range

Mycroft Holmes7-Aug-09 22:16

Mycroft Holmes

7-Aug-09 22:16

Check the number of subitems in lvAccounts I have the feeling that there will only be 1 Item and 2 subitems in the source listview.

Subitems are weird in a listview, IIRC it counts the item as subitem[0].

If accUserPass[i].SubItems[3] is missing you can use accUserPass[i].SubItems.Add().

Never underestimate the power of human stupidity
RAH

Using XML as a data source

Rafone7-Aug-09 11:36

Rafone

7-Aug-09 11:36

Been searching eveything I know to search and cant find anything specific enough.

Is there a way to make an XML file into a data source so I can take advantage of the Data-Aware capibilities in Visual Studio 2008.

I would like to use the Data Source and Data Navigator to develop a simple data entry form that had 6 data bound textboxs and a child DataGridView with the ability to add, delete and modify some small(300-500 items) xml files. In other words use the XML files like I would use SQL server.

Thanks in advance for any comments or suggestions and links to any examples would be helpful.

rafone

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

Re: Using XML as a data source

Henry Minute7-Aug-09 15:31

Henry Minute

7-Aug-09 15:31

Well sort of. I do not know of a way to do this directly, although there may be one.

However, the DataSet class has a ReadXml method as, I believe, does the DataTable class. Obviously they both also have WriteXml methods too. So you can create a DataSet, or DataTable, in memory and read the XML into it. From then on it is just like using SQL Server.

If you Google/Bing for dataset.readxml you will find loads of examples.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
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“I want to report a fraud. The government is lying to us all.”

Re: Using XML as a data source

Rafone7-Aug-09 17:17

Rafone

7-Aug-09 17:17

Thanks Henry

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

Re: Using XML as a data source

Rafone7-Aug-09 18:29

Rafone

7-Aug-09 18:29

Found this if anyone is intrested...

Using XML as Database[^]

rafone

Statistics are like bikini's...
What they reveal is astonishing ...
But what they hide is vital ...

Format date mm/dd/yyyy

Wheels0127-Aug-09 9:08

Wheels012

7-Aug-09 9:08

Good afternoon.

We want a user to enter a date as 08/07/2009, but if someone enters 08/07/09 we want to format it correctly, but any other dates like 08/07 will be rejected. I know InfoPath automatically changes 09 to 2009 depending on the format of the field. What makes it additionally challenging, is if someone enters 08/07/20 (deletes the 09 in error), we wouldn't want it to format 08/07/2020.

Any suggestions? Thank you, WHEELS

You can cheat it a little

Ennis Ray Lynch, Jr.7-Aug-09 9:16

Ennis Ray Lynch, Jr.

7-Aug-09 9:16

While you can most definitely enforce the ##/##/#### format they could try British style dates. DateTime.ParseExact[^] can be used to check to see if it is valid. Any logic you want you will have to combine with if statements. I would recommend against and format input boxes as they always seem to cause problems. Now, using a DateTime picker with a custom format is also a perfect solution.

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"Sir I exist!"
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"The fact has not created in me
A sense of obligation."
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Re: You can cheat it a little

Wheels0127-Aug-09 9:19

Wheels012

7-Aug-09 9:19

Thank you. Have a great weekend.

Re: Format date mm/dd/yyyy

musefan7-Aug-09 9:16

musefan

7-Aug-09 9:16

How will the user enter the data? Are you using WinForms? If so, you could just use a DatePicker Control and set the format however you want

Life goes very fast. Tomorrow, today is already yesterday.

Re: Format date mm/dd/yyyy

Wheels0127-Aug-09 9:20

Wheels012

7-Aug-09 9:20

The users are enter data in a datagrid view on a winform.

Re: Format date mm/dd/yyyy

musefan7-Aug-09 9:47

musefan

7-Aug-09 9:47

Maybe try something like this...

DateTime dt = DateTime.Now;
if(DateTime.TryParseExact("DATEVALUE", "MM/dd/yy", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out dt))//has short year
{
     //NOTE 1
     DataGridViewCell.Value = dt.ToString("MM/dd/yyyy");
}
else if(!DateTime.TryParseExact("DATEVALUE", "MM/dd/yyyy", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out dt))
{
     //not valid format so do some error handling
}

NOTE 1: you could add some logic here to test if the year is 20 but I would suggest you leave trying not to allow it to be converted to 2020 as that is what should be expected, plus if you validate each cell when it has lost focus then the user will see the change and can edit if it is wrong

Life goes very fast. Tomorrow, today is already yesterday.

Re: Format date mm/dd/yyyy

PIEBALDconsult7-Aug-09 10:45

PIEBALDconsult

7-Aug-09 10:45

Wheels012 wrote:
The users are enter data in a datagrid view on a winform.

Why? That's not the right tool. WTF | :WTF:

A view is for viewing. Why not pop up an editing dialog when the user wants to edit?

It is my firm belief that the DataGrid(View) was developed solely to demonstrate the power of ADO.net and should never be used in a production application.

Having said that, I have had some success in creating my own DataGrid that hosts other controls, but that was with .net 1.1, I had hoped that .net 2.0 would have that fuctionality built-in. Mad | :mad:

P.S. Always use an ISO 8601-compliant format -- YYYY-MM-DD

Re: Format date mm/dd/yyyy

Mycroft Holmes7-Aug-09 22:32

Mycroft Holmes

7-Aug-09 22:32

PIEBALDconsult wrote:
It is my firm belief that the DataGrid(View) was developed solely to demonstrate the power of ADO.net and should never be used in a production application.

Have 5, I want to form a club - those who refuse to use a DGV for editing.

Never underestimate the power of human stupidity
RAH

Re: Format date mm/dd/yyyy

PIEBALDconsult8-Aug-09 6:50

PIEBALDconsult

8-Aug-09 6:50

Thanks, I don't get many. Unsure | :~

Re: Format date mm/dd/yyyy

Mycroft Holmes7-Aug-09 22:34

Mycroft Holmes

7-Aug-09 22:34

Your 2 most useful responses are from Ennis - use a datetime picker and Piebald - DON'T USE A DGV FOR EDITING, pop a dialog and let the user edit in the dialog (using the datetime picker).

Never underestimate the power of human stupidity
RAH

connections strings in Linq

Chazzysb7-Aug-09 8:57

Chazzysb

7-Aug-09 8:57

Hi Ive created an application using c# vs2008 and sql server 2005

on my pc everything works fine, but when i release it onto a server it has trouble connecting to the database.

Im using Linq - ive created a DataLinq project, a DataAccess project and a BusinessLogic project...

For the Linq project i simply added a dbml file, dragged all the necessary tables across and voila...

If I do a search for 'connectionString' in the DataLinq project - it appears in a number of places with the actual value hard coded - its in:
app.config
bin\Debug\DataLinq.dll.config
DBLinq.dbml
Settings.Designer.cs
Settings.settings

I would expect it in the app.config file - am I expected to change it in all the locations before release or am i doing something wrong?

Cheers,
Chas

Re: connections strings in Linq

Super Lloyd7-Aug-09 14:58

Super Lloyd

7-Aug-09 14:58

Just app.config will be enough!

bin\Debug\DataLinq.dll.config is a copy of app.config made by VS on build success.

application settings are written to the app.config as well (in settings you can choose application or user)

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