ASP.NET

23-Apr-07 0:22

Hello programmers,
Any idea how to compute two time value in two textbox and display in label?

Bernie

Chetan Ranpariya23-Apr-07 0:41

23-Apr-07 0:41

Hi
Can you elaborate your exact requirement?

Thanks and Regards,
Chetan Ranpariya

bernie_01129-Apr-07 22:55

Re: how to compute two dateTime on postback [modified]

29-Apr-07 22:55

i have 2 time dropdownlist, frmdrp and todrp, i just add collection to dropdown which is 8:30,9:00,9:30,10:00(completed to 24 hours)

For example i have selected 8:30 from the frmdrp then i select 12:30 from todrp.

After postback, the label will show the difference between the two time selected.
The result is:

label1="4" hour difference.

Can you help me with that?

Bernie

Chetan Ranpariya29-Apr-07 23:14

29-Apr-07 23:14

Hi,

You can use the following logic if it is applicable to your requirments.

DateTime dt1 = Convert.ToDateTime(frmdrp.SelectedValue);
DateTime dt2 = Convert.ToDateTime(todrp.SelectedValue);
TimeSpan ts = dt2 - dt1;
int totalhours = ts.Hours;
int totalmins = ts.Minutes;
label1.Text = totalhours.ToString() + ":" + totalmins.ToString();

I hope this will help you.

Thanks and Regards,
Chetan Ranpariya

-- modified at 5:19 Monday 30th April, 2007

bernie_01130-Apr-07 20:45

30-Apr-07 20:45

Can you please do the code in visual basic not in C# code?

Thanks and God Bless!

Bernie

bernie_01130-Apr-07 21:09

30-Apr-07 21:09

i got it..Thank yo very much i used DIM something like that.

God Bless you boy..

Ahh..

I have another question,

How can i insert multiple items from listbox in my table in database?
I have a category "Agents" on dropdownlist,
I have may names on my listbox,
If i click Insert it only insert 1 row not all the items inside my listbox.

Bernie

Chetan Ranpariya1-May-07 20:44

1-May-07 20:44

Hi,

You can do it like this.

ListItem litem = new ListItem();
litem.Text = drp.SelectedText;
litem.Value = drp.SelectedValue;
lstbox.Items.Add(litem);

The code above is the logic and you can implement in VB easily. Just syntax is the difference.

Thanks and Regards,
Chetan Ranpariya

bernie_0111-May-07 22:25

1-May-07 22:25

How can i insert all the items in listbox into the database? multiple insert.
I can get all the items but its just inserting 1 row in that category.

drpcategory : Agent,Trainees
drpNames : Bernie, Ray,Kirby,John,Beejay
list1 : contains all the selected items on drpNames
table1 : my table in my database

my query now is
INSERT INTO table1(Category,Name)VALUES(@category,@name)

If list1box1 contains all the items from drpnames and i select "Agent" category on my drpcategory and i click the button insert, all the 4 items will be inserted in my database table(table1) on a single click.
Can you help me with that?

I am using detailsView and SQLdatasource

Bernie Leynes

Chetan Ranpariya1-May-07 22:28

1-May-07 22:28

Hi,

If you are creating seperate row for each of the item in the listbox then you have to loop through all the items and create intsert query in the loop and execute it.

Thanks and Regards,
Chetan Ranpariya

bernie_0111-May-07 22:38

1-May-07 22:38

it works fine if i use dropdownlist, but in dropdownlist you will insert the data in the database individually right?.

I want to use listbox for me to insert all the data in a single click of the button.

God Bless you!

Bernie Leynes

Chetan Ranpariya1-May-07 22:40

1-May-07 22:40

HI,

I am not getting you exact requirement. Can you pelase elaborate by giving an example?

Thanks and Regards,
Chetan Ranpariya

bernie_0111-May-07 22:58

1-May-07 22:58

ok. heres my example
I have 2 dropdown and a listbox and a table in my database
drpcategory
drpNames
listbox1
table1- the columns are Category,Name

I have items in drpcategory.
the items are:
Agent, Trainees

In my drpNames the items are :
Bernie, Ray, Kirby

listbox1.items= drpNames.selecteditem.text

If my listbox1 contains all the names from drpNames
and i select "Agent" from drpCategory then i click insert button all the 3 names on my listbox will be inserted but different row.
The result will be

Category Name
Agent Bernie
Agent Ray
Agent Kirby

My problem is even if i have multiple items in my listbox then after i click insert int only insert 1 row in my table which is the first row only

Bernie Leynes

Chetan Ranpariya1-May-07 23:09

1-May-07 23:09

hi,

See in this case the solution is what I have told you before. U have to loop through all the items in the listbox and create INSERT query for each of the item and execute it.

Can u send the code you have written?

Thanks and Regards,
Chetan Ranpariya

bernie_0111-May-07 23:29

1-May-07 23:29

listbox1.items = drpNames.selecteditem.text
this is how i get the items from dropdown and display in listbox.

How can i Loop all the items from listbox?
If i do looping it will insert all the items from listbox in my table in the database?

Bernie Leynes

Chetan Ranpariya1-May-07 23:36

1-May-07 23:36

Hi,

The onel line of code u have given will not execute coz it will give compile time error.

yes i u loop through all items in the listbox it will all the items from the listbox in the table in database.

how do u try to insert data in the table in you database?
Please paste your code here.

Thanks and Regards,
Chetan Ranpariya

bernie_0111-May-07 23:40

1-May-07 23:40

Heres my code..
INSERT INTO table1(category,Name)VALUES(@category,@name)

category bind to drpcategory
name bind to listbox1

You are blessed men.
Thanks

Bernie Leynes

bernie_0113-May-07 23:49

3-May-07 23:49

I know you know how to do that man. Please help me..

Thanks and God Bless

Bernie

Chetan Ranpariya6-May-07 23:57

6-May-07 23:57

HI,

I have asked you to paste your whole code here. but I dont think you want to do that. You are just pasting one or two lines and want me to do everything for you.
Things doesnt happen like that.
If you want to insert values from the listbox the commong logic is that you take items from the listbox one by one and create insert query for each of the item and execute the query.

foreach(ListItem LI in lstbox.Items)
{
string strquery = "Insert Into table Values ('" + ddl.SelectedValue + "', '" + LI.Value + "')";

cmd.executenonquery(strquery);

}

THis is the commong logic. You implement this as per your requirement.
If any further assistance is needed then do reply with the whole code u have written to insert the data in the table.

Thanks and Regards,
Chetan Ranpariya

bernie_0117-May-07 0:16

7-May-07 0:16

im sori but i am using SQLDataSource thats why i have only one line of Code. I just bind the listbox on my textfield. I did not use the manual connection in code behind.

Any idea about that?. I already check the multiple selection but still insert 1 data per transaction

thank you

Bernie

Exam Application

bernie_0119-May-07 20:35