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DataGrid Sort Problem

 
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Old 10-04-2006, 12:08 AM   #1
thebison
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Default DataGrid Sort Problem


Hi all,

I hope someone can help with this relatively simple problem.
I am building a timesheet application using ASP.NET C# with Visual
Studio 2003.As it is only a protoype application, my database has been
made in MSDE.

I've searched all over the web for the answer to this, but can't quite
work it
out. Basically, I am showing all Timesheet Entries in a DataGrid, by
applying a DataView to a DataSet. This works fine, and now I need to
sort the entries. I want my sort order to be done by ResourceID, Day.
The problem is that my Database has the days of the week stored as a
string (i.e. each entry will be for one of of the following
'Mon','Tues','Weds', 'Thurs', 'Fri', 'Sat', 'Sun')

The problem when sorting is that if I sort by 'Day', because it's a
string it will do it alphabetically. Obviously this is wrong, I want
it to sort it in the order of the days of the week as shown above. How
would I go about achieving this? I thought about assigning values to
each day when adding to the database (this is done by a drop-down list
so Monday could =1, Tuesday =2, Weds = 3 etc). However when I then pull
the data into the DataGrid, it will be stored as numbers, not Days.

Does anyone have any suggestions as to how I could solve this? To
re-iterate, I have a column called 'Day' which will contains one of the
7 days of the week, and I wish to sort rows in 'Day' logical order.

Thanks in advance

Al

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Old 10-04-2006, 06:04 AM   #2
OHM \( One Handed Man \)
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Default Re: DataGrid Sort Problem

One way would be to add a hidden column with the numbers representing the
days, when you sort, sort on this column not the string representing the
day.

--
( OHM ) - One Handed Man
AKA Terry Burns - http://TrainingOn.net

"thebison" <alex.sinclair3@btinternet.com> wrote in message
news:1144624105.287613.126620@e56g2000cwe.googlegroups.com...
> Hi all,
>
> I hope someone can help with this relatively simple problem.
> I am building a timesheet application using ASP.NET C# with Visual
> Studio 2003.As it is only a protoype application, my database has been
> made in MSDE.
>
> I've searched all over the web for the answer to this, but can't quite
> work it
> out. Basically, I am showing all Timesheet Entries in a DataGrid, by
> applying a DataView to a DataSet. This works fine, and now I need to
> sort the entries. I want my sort order to be done by ResourceID, Day.
> The problem is that my Database has the days of the week stored as a
> string (i.e. each entry will be for one of of the following
> 'Mon','Tues','Weds', 'Thurs', 'Fri', 'Sat', 'Sun')
>
> The problem when sorting is that if I sort by 'Day', because it's a
> string it will do it alphabetically. Obviously this is wrong, I want
> it to sort it in the order of the days of the week as shown above. How
> would I go about achieving this? I thought about assigning values to
> each day when adding to the database (this is done by a drop-down list
> so Monday could =1, Tuesday =2, Weds = 3 etc). However when I then pull
> the data into the DataGrid, it will be stored as numbers, not Days.
>
> Does anyone have any suggestions as to how I could solve this? To
> re-iterate, I have a column called 'Day' which will contains one of the
> 7 days of the week, and I wish to sort rows in 'Day' logical order.
>
> Thanks in advance
>
> Al
>



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Old 10-04-2006, 07:16 AM   #3
Cor Ligthert [MVP]
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Posts: n/a
Default Re: DataGrid Sort Problem

The Bison,

In addition of OHM answers here a link to our website where is showed how
easy it is to do that.

http://www.vb-tips.com/default.aspx...c3-a3539697edbd

I hope this helps,

Cor

"thebison" <alex.sinclair3@btinternet.com> schreef in bericht
news:1144624105.287613.126620@e56g2000cwe.googlegroups.com...
> Hi all,
>
> I hope someone can help with this relatively simple problem.
> I am building a timesheet application using ASP.NET C# with Visual
> Studio 2003.As it is only a protoype application, my database has been
> made in MSDE.
>
> I've searched all over the web for the answer to this, but can't quite
> work it
> out. Basically, I am showing all Timesheet Entries in a DataGrid, by
> applying a DataView to a DataSet. This works fine, and now I need to
> sort the entries. I want my sort order to be done by ResourceID, Day.
> The problem is that my Database has the days of the week stored as a
> string (i.e. each entry will be for one of of the following
> 'Mon','Tues','Weds', 'Thurs', 'Fri', 'Sat', 'Sun')
>
> The problem when sorting is that if I sort by 'Day', because it's a
> string it will do it alphabetically. Obviously this is wrong, I want
> it to sort it in the order of the days of the week as shown above. How
> would I go about achieving this? I thought about assigning values to
> each day when adding to the database (this is done by a drop-down list
> so Monday could =1, Tuesday =2, Weds = 3 etc). However when I then pull
> the data into the DataGrid, it will be stored as numbers, not Days.
>
> Does anyone have any suggestions as to how I could solve this? To
> re-iterate, I have a column called 'Day' which will contains one of the
> 7 days of the week, and I wish to sort rows in 'Day' logical order.
>
> Thanks in advance
>
> Al
>



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