Web Development

How to handle secondary tables that key off primary table

26-Feb-07 9:27

The correct crystel reports dlls need to installed on your web server. I have gotten this error before. If your web.config file you probably have something like this:

<assemblies>
<add assembly="CrystalDecisions.CrystalReports.Engine, Version=11.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
<add assembly="CrystalDecisions.Enterprise.Framework, Version=11.5.3300.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
<add assembly="CrystalDecisions.ReportAppServer.ClientDoc, Version=11.5.3300.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
<add assembly="CrystalDecisions.Shared, Version=11.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
<add assembly="CrystalDecisions.Enterprise.InfoStore, Version=11.5.3300.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
<add assembly="CrystalDecisions.Web, Version=11.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
<add assembly="CrystalDecisions.ReportSource, Version=11.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/>
</assemblies>

That stuff needs to be removed if you are not using crystel reports.

Hope that helps.
Ben

Re: new error

No-e26-Feb-07 9:47

No-e

26-Feb-07 9:47

Thanks, I tried removing it and got another error... think I messed up the syntax someplace when I removed it correctly all is well.

Thanks
Smile | :)

MaxRelaxman26-Feb-07 7:23

MaxRelaxman

26-Feb-07 7:23

I have a web form that a user fills out. The form fills in several tables which key off another table that I'll call Table1. When I add a record to Table2, I need a valid key from Table1. What I'm currently doing is adding a record to Table1 and using the key SQL Server returns to me. So far so good. My problem is if the user doesn't complete the form, I'll have a basically empty record in Table1 and bunch of records in Table2.
What I would do in a desktop app would be to use DataTables (C#) in memory and update the DB later but since this is a Web Form, I don't want to kill the server with a bunch of extra junk.

So is what I'm currently doing correct? Should I write a utility/query to clean out the half completed records? Am I correct in assuming that keeping a couple DataTables in memory for each logged in user is bad practice?

Thanks in advance!

Specified Cast Not Valid

No-e26-Feb-07 7:12

No-e

26-Feb-07 7:12

I have a SQL database with a "Real" field called "MinutesRemining", I am trying ot load it into a DataGrid as in the example below:

<br />
       Dim dt As New DataTable<br />
       Dim MyDataRow As DataRow<br />
<br />
       dt.Columns.Add(New DataColumn("MinutesRemaining", GetType(GetSQLInt32)))<br />
<br />
sqlStatement = "Select MinutesRemaining from tblStatusLot "<br />
<br />
            Dim cmd As New SqlCommand(sqlStatement, cn)<br />
            Dim dr As SqlDataReader = cmd.ExecuteReader<br />
            Do While dr.Read()<br />
                MyDataRow = dt.NewRow()<br />
                MyDataRow(0) = dr.GetSqlInt32(0)<br />

The database field type is "Real", but there is not an option for real in the "dr." options, nor is there one in the DataColumn function options. I get an error "Specified Cast is Not Valid", when I use GetDouble, GetSQLInt32, I am not what conversion I should be usng as there is not an option for Real.

Thanks in advance...

kubben26-Feb-07 7:36

26-Feb-07 7:36

Hard to know for sure, but I think what you want here is the Decimal type GetSqlDecimal. So the type in your table will also need to be of Type Decimal or float. I am pretty sure if you have a real number in sql calling it an int is not going to work.

Hope that helps.
Ben

No-e26-Feb-07 9:01

No-e

26-Feb-07 9:01

Thanks for the suggestion, I changed the table and tried a few other casts. It turns out to be happiest with no casting at all... Now why did I not think if that first....

kubben26-Feb-07 9:02

26-Feb-07 9:02

Great, I am glad that it worked out. Isn't that funny how it works out that way sometimes?

Ben

adding a row on a datagrid

Guffa26-Feb-07 23:45

Guffa

26-Feb-07 23:45

The equivalent .NET data type for a Real is Single. You can use the GetFloat method to read it from the data reader.

---
single minded; short sighted; long gone;

nclauder26-Feb-07 1:02

nclauder

26-Feb-07 1:02

Hi,
I'm trying to Insert a new Row on a dagrid. When I did a google search, I got an example on this address: http://www.codeproject.com/ASPNET_DataGrid.asp.
I've done mycode as follows:

private void Fill()
{
DataSet ds=new DataSet();
SqlDataAdapter adapter =new SqlDataAdapter("select * from DashBoard", con);
adapter.Fill(ds);
}
private void Bind()
{
DataSet ds=new DataSet();
dgis.DataSource = ds;
dgis.DataBind();
}
private void InsertEmpty()
{
DataSet table=new DataSet();
Table.Rows.InsertAt(Table.NewRow(), 0);
}
private void bttnew_Click(object sender, System.EventArgs e)
{

dgis.EditItemIndex = 0;

EditCommandColumn ecc = (EditCommandColumn) dgis.Columns[0];
ecc.UpdateText = "Insert";

Fill();
InsertEmpty();
Bind();
}
private void dgis_ItemCommand(object source,System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
dgis.EditItemIndex = -1;
switch (e.CommandName)
{
case "Insert":
break;

case "Update":
break;

case "Cancel":
EditCommandColumn ecc =(EditCommandColumn) dgis.Columns[0];
ecc.UpdateText = "Update";
break;

case "Edit":
dgis.EditItemIndex = e.Item.ItemIndex;
break;
}

Fill();
Bind();
}

On compiling I get this error

-'System.Web.UI.WebControls.Table' does not contain a definition for 'NewRow'
-'System.Web.UI.WebControls.TableRowCollection' does not contain a definition for 'InsertAt'
-'An object reference is required for the nonstatic field, method, or property 'System.Web.UI.WebControls.Table.Rows'

Where could I be going wrong?

Sharepoint 2007 code to get a list of User Profiles.

Member 368588925-Feb-07 23:41

Member 3685889

25-Feb-07 23:41

Hi,

I want a customized User Profile Search. I cannot use GetUserProfile method as it returns only one user profile. What is the way to get a list of users matching the input user name.Please help me with the sharepoint 2007 code for the same.

Thanks in advance...........

Usha

ASP 3.0 Search In Word Document using classic asp 3.0

adnanrafiq25-Feb-07 12:33

adnanrafiq

25-Feb-07 12:33

hi,

i want to do keyword search in word .doc files, e.g in resumes, i want to implement a script in asp 3.0, please guide me by giving some help full links to get started, or give some code snipts... any help will be highly appreciated.

Many Thanks,
Adnan Rafiq
muhammadadnanrafiq@gmail.com

Auto-incrementing assembly build numbers for ASP.NET 2.0

MayyMagdy25-Feb-07 10:46

MayyMagdy

25-Feb-07 10:46

Hi all,

actually i am very depressed of VS.NET 2.0 i have a real problem and am sure i'll found the solution here. firstly i can't understand how .net 2.0 doesn't automatically create dll file for the project, while i was using .net 1.1 there was bin\debug which contains dll file for the web project so i can upload it on the server each time i change something in the code. now after converting to .net 2.0 i don't know what to do? also i found a tool which is "web deployment" i installed it and tried to get the dll it works once and didn't work again but when it worked the build number was 0.0.0.0 and it never changes when i make changes and build again. please i really need help if anyone can. Thank you all

Re: Auto-incrementing assembly build numbers for ASP.NET 2.0

kubben26-Feb-07 7:41

Web Development [modified]

26-Feb-07 7:41

The problem may be in your solutionInfo file. You should find something like this:
// You can specify all the values or you can default the Revision and Build Numbers
// by using the '*' as shown below:
[assembly: AssemblyVersion("1.0.0.*")]
[assembly: AssemblyFileVersion("1.0.0.*")]

I am guessing that you don't have * in the build you just have 0.0.0.0 which means you are controling the build number.

Hope that helps.
Ben

swjam24-Feb-07 20:42

swjam

24-Feb-07 20:42

Hi All,

I'm setting up a webserver and I'm a noob when it comes to. I will be doing my own research but just so I can direct my energy (and money!) on the right references, can I have your suggestions on:
1. Beginner's Guide
2. Definitive Reference

when it comes to
a. Setting up
b. Maintaining

webserver/website.

I am planning for the website to be interactive and not just plain html. Also, please don't limit your suggestions to books, websites will also be good.

Thank you and have a nice week ahead!

-- modified at 20:59 Sunday 25th February, 2007

I am a SysAdmin, I battle my own daemons.

Bradml24-Feb-07 20:54

Bradml

24-Feb-07 20:54

Don't do it. If you are planning to create a web server that is publicly available then you will need more then just what references can teach you, you need experience. I would advise you use a hosting service to host your website and learn by example.

Also what language and platforms are you planning to use?

Brad
Australian

- Christian Graus on "Best books for VBscript"

A big thick one, so you can whack yourself on the head with it.

swjam24-Feb-07 21:47

swjam

24-Feb-07 21:47

Thanks mate. I am weighing whether to use IIS/Asp.Net or Apache/Java (then there's CSS and a myriad other technologies). Since I am a C#/MS developer I have bias towards the former. I have registered a DNS but I thought if I host it myself I would learn more from it (I'll just use a dynamic DNS host). Yes I would like to do hands on hence I've bought all the necessary h/w and the DNS service but still it would be great to have some references. One that is for beginners and another definitive.

Cheers!
DC

I am a SysAdmin, I battle my own daemons.

GaryWoodfine 24-Feb-07 22:04

GaryWoodfine

24-Feb-07 22:04

Well, You are about to embark on a journey fraught with danger.
It's one thing setting up the server to run, but it's another thing when the banshee's arrive and start attacking the server, and believe me they will arrive in a matter of days, it is then that unfortunately no amount of books, references etc. will prepare you for, and you will be spending most of your time trying to figure out what they have done, instead of actually learning.
I think what you have to decide is what do you actually want to learn? To you want to learn how to code and deploy a website? Or do you want to learn how to defend a web server? Sadly learning how to do both will take plenty of time and effort.

I found this book invaluable when it came to IIS 6.0
IIS 6.0 book

Kind Regards,
Gary

My Website || My Blog || My Articles

User 988525-Feb-07 1:41

User 9885

25-Feb-07 1:41

Web development is one thing; running and securing a web server is another.

If you want to run a web server and understand how you can lock it down, instead of hosting it at a service provider, maybe the following links can point you in the right direction. Be prepared for getting some unwanted attention, and spending some time to deal with it.

http://articles.techrepublic.com.com/5100-10878_11-5055458.html
http://www.microsoft.com/technet/community/events/iis/tnt1-40.mspx
http://www.windowsecurity.com/articles/Installing_Securing_IIS_Servers_Part1.html
http://www.washington.edu/computing/support/windows/UWdomains/IISsecchecklist.html
http://searchsecurity.techtarget.com/tip/1,289483,sid14_gci1015581,00.html

If you want to just run a web server that you and a few people known to you wants to access, you can use a port other than port 80. Also make sure that only the web server port remains accessible from the Internet.

Go through the web server logs regularly. A hardware firewall may be good to have, but not essential. After all, if you have problems that take up too much of your time, you can just block the port, take down the webserver, and host it on a hosting service. It might also be a good idea to capture incoming packets (you won't have too many) using Wireshark so that you understand what kind of traffic your webserver attracts.

If you have the time, I will recommend that you do this. It will enhance your skills for sure. But, if you are interested in just getting a web presence and not in understanding how to run an Internet facing server, you better use a hosting service.

IIS or Apache -- the issues are the same. Your windows background makes IIS ideal. Checkout Ruby on Rails also. http://www.rubyonrails.org/. Paul Watson is the resident expert on this subject.

Thomas

Thomas

--------
Micrologic Networks, India

modified 29-Aug-18 21:01pm.