ASP.NET

Web Services - implementing an interface

22-Nov-06 7:26

You can't put anything (ethical) in the code.

Guy Harwood22-Nov-06 2:25

Guy Harwood

22-Nov-06 2:25

Hi, here is my scenario...

i have the following in my solution...

App1 - normal application
App2 - normal application
CoreApp - library containing classes and 'core' functionality

App1 and App2 talk to each other via their sql server databases.

now, sometimes app1 and app2 may be installed on the same server, sometimes they are not.

so, if they are installed on the same box there will be a connection string to the other apps db in their web.config file.

if the connection string does not exist then i must call the other apps web service which will perform the db insert for me.

i made an interface, lets says its called IComms
this interface is implemented by the web service and the class that performs the direct insert.

it defines the method signature that allows app1 to put something in app2s database.

so to send a message i write this code in App2..

<br />
<br />
dim proxy as IComms<br />
'see if we have connection string for app1 database<br />
<br />
if getConfigSetting("App1ConnectionString").length = 0 then<br />
'use web service<br />
proxy = new app1.webservice<br />
else<br />
proxy = new CoreApp.dbCalls<br />
end if<br />
<br />
proxy.sendmessageToApp1("hello")

this is all very well, but the reference to app1s web service in app2 does not create an implementation of the interface on the proxy class.

is there any way round this or should i just design the app without the use of an interface?
Unsure | :~

---Guy H ( Wink | ;-)

---

Need help on how to use ObjectDataSource - don't know how to select

pedrak22-Nov-06 2:20

pedrak

22-Nov-06 2:20

Hello all

I am in desperate need of help with this problem.

I would like to do the following but can't figure out how to do it.

(This is the part I know how to do):

Present a ListBox which contains a items associated with a database table.

The user can remove items such that the listbox might contain less than all the items from the database table.

(I don't know how to do this part):

Present the items from the listbox in a datalist control using a objectdatasource, associated with some sort of select method in a BLL object, which will then work on a typed dataset.

I think it would be smart if I could give a collection of id's taken from the listbox, and send it as an argument to the select method in the BLL object. The select method should then return BLL objects, with all the data associated with the chosen id's from the listbox

Hope my describtion makes sence, and that you guys can help.

Thanks in advance

/dresen

DataGrid String Binding problem

param thaker22-Nov-06 1:57

param thaker

22-Nov-06 1:57

Hi Friends

I want to bind the String with the DataGrid , in such a way
that i have one string say "125:test" . I want this string to be bound with the datagrid , so that , each and every character , means
1 2 5 : t e s t , will store individually ,in the individual cell of the datagrid.

Please , guide me.

Thanking you,
Param

param

coolestCoder22-Nov-06 3:11

coolestCoder

22-Nov-06 3:11

Hi,
You can create rows and cells using a loop where in you parse a given string and put 1 character in the cells text property. But please note that there will be problems if your strings are not of same length. If that is the case, you will have to enter the blank values in cells where there are less number of characters. Hope I am clear enough and the solution can be implemented Smile | :)

"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder

coolestCoder

ed^nrgc22-Nov-06 3:37

22-Nov-06 3:37

store the characters in a table (1 char per column), then databind it.

coolestCoder22-Nov-06 3:46

coolestCoder

22-Nov-06 3:46

Hi,
I dont remeber but you can directly attach a string as a data source to a data grid as --

value = "123:test"
dataGrid1.datasource=value

here value is declared to be a string variable. I read it somewhere on the other forums here on CP (not able to remember the exact link)

But i dont think that this will work in case if multiple rows are needed. Dont know ! i havent checked it myself !

"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder

coolestCoder

ravikiranreddydharmannagari

ravikiranreddydharmannagari22-Nov-06 18:54

22-Nov-06 18:54

hai

its working out,i checked

string value1="123 test";
DataGrid1.DataSource=value1;
DataGrid1.DataBind();

with regards

datagrid

monika_vasvani22-Nov-06 1:56

monika_vasvani

22-Nov-06 1:56

Hi All

I have one datagrid.I have one string like value= "123;value".whenever I bind this string with datagrid like

datagrid.datsource=value
datagrid.databind

when my grid is displayed one character per cell.

But I want whole string in one cell.How can i do that?

pls reply me
Thanks
monika

Re: datagrid

ed^nrgc22-Nov-06 3:40

Reg : Microsoft Enterprise Libraries for Data

22-Nov-06 3:40

This must be homework if this exact question has been asked more than once by different people.

venkatasivaramaprasad22-Nov-06 1:43

venkatasivaramaprasad

22-Nov-06 1:43

Hi All,

i dont know whether this is right forum or not for my problem. But please give me the solution for me.

What is the use of Microsoft Enterprise Libraries over Ado.Net in .Net.

Can anybody please give me the solution.

Thanks in Advance

Thanks and Regards

Venkat

Re: Reg : Microsoft Enterprise Libraries for Data

ed^nrgc22-Nov-06 3:41

22-Nov-06 3:41

ELs are basically wrappers to make easier calls.

Two in one

sujith3122-Nov-06 1:15

sujith31

22-Nov-06 1:15

Can i use one page of vb.net and another of c#.net in a single asp.net project ?

Thanks in advance

"I firmly believe that
any man's finest hour,
the greatest fulfillment of all that holds dear,
is that moment,
when he has worked his heart out in a good cause
and lies exhausted in the field of battle - victorious..."

Re: Two in one

Britney S. Morales22-Nov-06 2:31

Britney S. Morales

22-Nov-06 2:31

Yes you can, the framework read the directives individually over the html Code page, what server Synthax code to use.

keep Learning and you never will be out of date...

Re: Two in one

coolestCoder22-Nov-06 3:38

coolestCoder

22-Nov-06 3:38

Britney S. Morales wrote:
keep Learning and you never will be out of date...

Very true !

"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder

coolestCoder

Re: Two in one

sujith3122-Nov-06 18:16

sujith31

22-Nov-06 18:16

Thanks

Also please tell how to add a vb.net page to c#.net web project

Listbox

kavithapuranik22-Nov-06 1:07

kavithapuranik

22-Nov-06 1:07

i have 2 listboxes,whichever item i select in the first listbox should appear in the second and the item in first listbox shud be removed,im using this piece of code

<br />
 For iCount = 0 To lststates.Items.Count - 1<br />
                If lststates.Items(iCount).Selected Then<br />
                    lstselectedstate.Items.Add(lststates.Items(iCount).Text)<br />
                    'lststates.Items.Remove(lststates.Items(iCount).Text)<br />
                    lststates.Items.RemoveAt(iCount)<br />
                End If<br />
<br />
            Next<br />

but im getting this error
"Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"

can anyone pls rectify it,its very urgent

kavitha

MIHAI_MTZ22-Nov-06 1:43

MIHAI_MTZ

22-Nov-06 1:43

Say that when you start "lststates.Items.Count - 1" = 10; this will be computed only once. When you remove an item it gets the index out of range. Try counting down from lststates.Items.Count - 1 to 0.

venkatasivaramaprasad22-Nov-06 1:46

venkatasivaramaprasad

22-Nov-06 1:46

Hi
Once u removed the item from listbox u need to decrease the count (count--)to 1. because once u removed the item count will be reduced. i think below code would be helpful to u. the code which i added is put in bold and underline

For iCount = 0 To lststates.Items.Count - 1
If lststates.Items(iCount).Selected Then
lstselectedstate.Items.Add(lststates.Items(iCount).Text)
'lststates.Items.Remove(lststates.Items(iCount).Text)
lststates.Items.RemoveAt(iCount)
iCount=iCount-1
End If

Next

kavithapuranik22-Nov-06 21:31

kavithapuranik

22-Nov-06 21:31

hello sir,

thanks for u r reply
i tried u r code ,but im getting the same error,pls help

kavitha

ed^nrgc22-Nov-06 3:47