Database

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17-Dec-04 13:32

For both your follow up questions I have no idea. I've not had much time to look into the new features of SQL Server 2005 or the licensing/deployment model that it will use.

Re: MSDE Inquiry

Rob Graham24-Dec-04 6:08

Rob Graham

24-Dec-04 6:08

1. No. SQL server exress 2005 is a newer version of SQL server (Yukon - not yet released) than the MSDE distributed with VS. Net 2003 (SQL 2000). Most SQL 2000 functions should work the same on Yukon (It is backwards compatible), but there is no gaurantee at this point since it is not released.

2. No it will not work like Access, you will need to install the server if it is not already present, and attach or create your database to the server.

Why would anyone waste time arguing with an accountant about anything? Their sole function is to record what happenned, and any higher aspirations are mere delusions of grandeur. On the ladder of productive contributions they are the little rubber pads at the bottom that keep the thing from sliding out from under you. - Roger Wright

ListView Control

RogerDodge16-Dec-04 21:41

RogerDodge

16-Dec-04 21:41

I'm new to .NET and C# coming from VisualFox background.

I'm having a tough time with this control, namely determining which row has been selected.

I have four columns, three of which are visible, the fourth contains an id which becomes the parameter to a Stored Procedure which then populates a DataGrid.

e.g.

private void listView2_SelectedIndexChanged(object sender, System.EventArgs e)
{
cmdSelectZoneCosts.Parameters["@zoneid"].Value=this.listView2.SelectedItems[0].SubItems[3].Text;
dsZoneCosts.Clear();
daZoneCosts.Fill(dsZoneCosts, "ZoneCosts");
}

For some reason, the code is executed TWICE(?) the first time the .SelectItems.Count = 0 which crashes the line. If I "trap" for that i.e.

if (this.listView2.SelectedItems.Count !=0)
{
cmdSelectZoneCosts.Parameters["@zoneid"].Value=this.listView2.SelectedItems[0].SubItems[3].Text;
dsZoneCosts.Clear();
daZoneCosts.Fill(dsZoneCosts, "ZoneCosts");
}

It works this way, but why is it running the code twice ??

Can anyone point me in the right direction to a sample walkthrough of a simple form which will display records from a database, Add, Edit, Delete functions.

Roger

SQL Syntax Error

Suresh Prasad16-Dec-04 19:48

Suresh Prasad

16-Dec-04 19:48

Can any one help me with the following SQL statement. I am getting a syntax error. I am trying to update fields in a access database. Thanks

strSQL = "UPDATE tblSetup SET"
strSQL = strSQL & "tblSetup.Company_Name = '" & txtName & "',"
strSQL = strSQL & "WHERE tblSetup.Company_ID = '" & txtID & "'"

Re: SQL Syntax Error

Colin Angus Mackay17-Dec-04 2:24

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17-Dec-04 2:24

There are no spaces between SET and tblSetup. Also there is a spurious comma just before the WHERE. Finally, your SQL is highly susceptable to SQL Injection Attack. You may wish to read up on what SQL Injection attacks are, and how to prevent them.[^]

Does this help?

Re: SQL Syntax Error

Suresh Prasad17-Dec-04 4:06

Suresh Prasad

17-Dec-04 4:06

Thanks. I will try it out.

Datagrid update

Yulianto.16-Dec-04 16:15

Yulianto.

16-Dec-04 16:15

I`m new to ADO.NET, can we update a table from the datagrid? Thanks

<italic>Work hard and a bit of luck is the key to success.

You don`t need to be genius, to be rich.

Re: Datagrid update

Veera Raghavendra16-Dec-04 17:20

Veera Raghavendra

16-Dec-04 17:20

You can update the database from the datagrid it is possible in web.ui.datagrid.u must use the templates of datagrid properties Poke tongue | ;-P

e.veera raghavendra

Generating wrapper code for SQL Server Stored Procedure

Fraas16-Dec-04 15:32

Fraas

16-Dec-04 15:32

How Can I Generating wrapper code for SQL Server Stored Procedure ??

If You will Go To The Following link you will see an example for Generating wrapper code for Oracle Database .. And Also the author say there is built in tool for Generating wrapper code for SQL Server
http://www.codeproject.com/vb/net/OracleSPWrapper.asp
my question .. where is this tools ???

and thanks with my regarding

Fraas

"Artificial" Server" -beginner question

Anonymous16-Dec-04 13:49

Anonymous

16-Dec-04 13:49

I want to practice my SQL on Excel spreadsheets. When I have a project open in VS2003.NET and open the 'Server Explorer' window, it tells me (as it should) that there are no SQL Servers to connect to.
When I was learning SQL in school we would connect to the Oracle 9 Database on the Network. Now I want to continue practicing SQL/C#, but have no network/database or internet connectivity.
Is there a way I can add an add an "SQL Server" to this path when in fact the "Server" is located on the same laptop.
Please forgive my ignorance on the subject. I'm in no way pretending to know what I'm talking about but very much want to learn...

thanks for your time....

Server Object - Where to find the Dll ?

Vector715-Dec-04 22:37

15-Dec-04 22:37

Hello,

I want to use the command Server.MapPath and need the Server object. Where I can found it for reference ?

Heath Stewart15-Dec-04 23:17

Heath Stewart

15-Dec-04 23:17

The Server property is an intrinsic object accessible from within ASP.NET. You cannot simply use Server.MapPath (which is actually HttpServerUtility.MapPath) because 1) it's an instance method and you cannot instantiate the HttpServerUtility class yourself, and 2) it only works with a given virtual path because it needs to map a virtual path to a physical path. This is specific to both the virtual host and the virtual directory. Even on two different virtual hosts, a virtual directory will map differently to the same physical directory.

For future reference, if you have a question about what assembly a class (not object, which is an instance of a class) is defined in, you can view the bottom of the class documentation topic in the .NET Framework SDK that states what namespace and in what assembly the class (or any Type) is defined.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

[My Articles] [My Blog]

Vector716-Dec-04 1:45

16-Dec-04 1:45

Hello, thx for response. Yes I am working on an ASP.NET project and need the MapPath Method. But if I cannot instantiate it, i have no possibilities accessing it ?

Colin Angus Mackay16-Dec-04 2:34

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16-Dec-04 2:34

Vector7 wrote:
Yes I am working on an ASP.NET project and need the MapPath Method. But if I cannot instantiate it, i have no possibilities accessing it ?

Did you read what Heath said? You cannot instantiate it. It is created by the framework for you.

In your page class there is a property called Server[^] which exposes a pre-existing instance of the class which you can use.

Vector716-Dec-04 3:58

16-Dec-04 3:58

I have read it, but still not the correct hint.

This is what I've looked for :

HttpContext.Current.Server.MapPath Smile | :)

Because I didn't found the Server object, I thought I need an explicit IIS dll. But now I found this in the web by chance ( all other places show System.MapPath instead the right ASP.NET Version ).

Heath Stewart16-Dec-04 5:26

Heath Stewart

16-Dec-04 5:26

You can also access the Server property from the Page class (or rather the instance of the Page for your code, if you're running within a .aspx for example).

Excuse me for wondering why you're trying to access the Server property when you posted in the ADO/ADO.NET forum. Next time please use the appropriate forum, i.e. the ASP.NET forum.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

[My Articles] [My Blog]

Vector716-Dec-04 23:41

16-Dec-04 23:41

Excuse me for wondering why you're trying to access the Server property when you posted in the ADO/ADO.NET forum. Next time please use the appropriate forum, i.e. the ASP.NET forum.

Because I am developing a DB Application, where I need this in the connectionstring.

How to databound listbox with three table relational structure?

Heath Stewart17-Dec-04 1:00

Heath Stewart

17-Dec-04 1:00

It's still a question about ASP.NET. If you had a question about how to do a particular operation in C# you'd ask in the C# forum. The context of the application isn't as important as the context of the question. We don't know what you're writing, but if you ask in the right forum you'll get a more appropriate response.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

[My Articles] [My Blog]

Origon15-Dec-04 22:31

Origon

15-Dec-04 22:31

Hi, I have a little problem with data bounding a listbox, it works just fine when I bound the listbox to a “parent -> child” structure but when I want to bound it to the following structure I just can’t get it to work.

product (table)
- prod_id (PK)
- prod_name

category (table)
- cat_id (PK)
- cat_name

product_category_relation (table)
- prod_id (PK)
- cat_id (PK)

product (one to many) -> product_category_relation <- (one-to-many) category

I want to get the category names into a listbox when a product is chosen through data bounding, any help in the right direction is much appreciated, thanks in advance.

Reporting Service : custom parameter

Member 150632215-Dec-04 5:42

Member 1506322

15-Dec-04 5:42

I have just recently created a few reports for this web app we are working on. Upon constructing the reports and connecting them to some stored procedures i noticed that the parameters passed to the report only allow a single selection for a specific parameter.. for example if you have an employee parameter it only allows a single selection which sucks if you want the user to be able to pick a few employees.

i was wondering if anyone had information on creating or modifying the current reporting Service Api that renders reports so that one could create custom parameter selection tools.

here is an example of what im looking for.
http://dspace.dial.pipex.com/town/drive/xxg48/CustomParameters.html

any information would be great!

Help ! Selective SQL Statement

RDoes15-Dec-04 1:16

RDoes

15-Dec-04 1:16

Hi there,

Who can help me with this one.
I have a form with a Checkbox treeview. Now the user select one or more items.
I want execute a procedure which gets all the items selected in the treeview.
I tryed a procedure similar like the example

CREATE PROCEDURE dbo.GET_InstrumentReport @SELECTED varchar(2000) AS
SELECT *

FROM tblKBRLIJST

WHERE (tblKBRLIJST.ID = @SELECTED) AND (tblKBRLIJST.Valid = 1)
GO

The Parameter @SELECTED conains the value's like '44&67&89'
When Execute this only the first one is returned.
any solution ?

Thanks.

Re: Help ! Selective SQL Statement

Michael Potter15-Dec-04 11:12

Michael Potter

15-Dec-04 11:12

Your query string should look like:

SELECT *
FROM tblKBRLIJST
WHERE tblKBRLIJST.ID IN (44,67,89) AND tblKBRLIJST.Valid = 1

Your problem is how to form (44,67,89) from a parameter. The easy way would be to use sp_executesql

CREATE PROCEDURE dbo.GET_InstrumentReport 
(
    @Selected NVARCHAR(2000) 
)
AS
    DECLARE @sql NVARCHAR(2000)
   
    SET @sql = N'SELECT * FROM tblKBRLIJST WHERE tblKBRLIJST.ID IN (' + 
               REPLACE(@Selected,'&',',') +
               N') AND tblKBRLIJST.Valid = 1'

    EXEC executesql @sql

You can't use the parameter directly because it mixes values with SQL syntax. SQL syntax will be ignored if it is used as a parameter. Therefore, you must build the entire string by hand and pass it as a string.

Note: You should add some protection for SQL injection in the above code.

Re: Help ! Selective SQL Statement

Colin Angus Mackay15-Dec-04 12:28