I am having trouble getting a SQL query to post its results to a Session variable. I am close, but no success thus far. Here is what I have:
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However, I keep getting this error when I click to a new page that is using this "PracticeID" Session variable: No mapping exists from object type System.Data.SqlClient.SqlCommand to a known managed provider native type.
I would like to run a SQL query on the codebehind VB page that will also set a value from that query to a Session variable. Also, this needs to be done on the Page_Load.
Example:
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I've managed to use my MS Access database with repeaters and gridviews in my website. Basically, printing the result of a query directly to the website seems easy enough using something like this :
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After quite a bit of googling this seems to be a common way to do this. My question then seems kinda silly.
I want to use some of the data from the query in for example a variable without sending the data to a repeater or gridview and so on. Say I just want the username and a password from a database and want to store the username in one variable and the password in another for further use in the code. What do I do?
I have a Query which I run as an SQL. This is my SQL:
"SELECT COUNT(*) As NoDup FROM [XXX Dir] WHERE (FileName Like 'XXX_YYY_20100916.txt')"
The "XXX Dir" is a table and "FileName" is a text field within that table.
When I execute the SQL in the Query development windows, it returns a single value like 2.
I would like to assign that value to a variable so I can use it in my VB code.
I have a page with 2 dropdown menus and 2 datagrids.
The datagrids get populated by a database based on a dropdown menu slection.
This page links to another page which in turn links back to the original.
If the user leaves the first page and then returns back I want to keep the dropdown menus and datagrids populated.
I tried doing this with session variables but can't get the datagrids to stay populated ...
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If that Possible then How?
Response.Redirect("Manage Admin.aspx?AdminId=Select AdminId from Admins where UserName=" + Session["AdminSession"]);
Example scenario:
User login has a list of associated 'accounts' it has access to... this list of accounts is stored in a database table, say tblAccountAccessControl, something like:
login, accountID
userA, account123
userA, account456
userA, account798
userB, accountABC
userB, accountDEF
etc..
This info is used throughout the web application and determines the 'domain' of information the particular login has access to. For example there are many other tables that have the 'accountID' field and whenever a page pulls data from the table it only pulls data that the currently logged in user should be allowed to see, based on that tblAccountAccessControl data.
The security question:
Do I need to query the database every time I need to get this list of allowed accountID's? I was about to use a plain old query string to pass a particular accountID to another page but quickly caught myself as I realized that would be a major security flaw (the receiving page was going to use that accountID to grab info from the database, and there would be nothing preventing a user from simply typing in a url manually to get data from an accountID they are not supposed to be allowed to view). So I then thought I'll just store the list of accountID's in a session state variable so they will be carried with the user throughout the session.
But then I remembered there are tools out there that allow you to easily intercept and modify asp.net viewstate information and I'm not sure if that would included session state variables, but I'm guessing they would. Is there a way to create a secure query string? If I used session state would that session state information be exposed and modifyable by utilities out there? Am I just stuck having to query the database every time I need this info to assure security? What about encrypting it and then storing in session state variable (just thought of that one)?
I have the following in my code (Login.aspx page)
Javascript:
<script
language="javascript"
type="text/javascript">
alert(username);
[Code]....
[Code]....
i want to insert the result of that query into nother table in my database. please help me find a way to do that.
I have a search form on my site. I want to post the search term to my controller. I just have a question about [AcceptVerbs(HttpVerbs.Post)]. It seems to post the field name. Why can't I just get the value ?View:
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Controller:
[Code]....
Result:
ViewData["SearchTerm"] contains the value : txtSearch=my search term
I am executing the following T-SQL code, which runs successfuly according to message I see at end of its execution, but the file c:cptest.txt is never created. I have checked for this file and it doesn't exist. what is the issue here?
EXEC MASTER..xp_cmdshell 'bcp "SELECT top(10) from Person.Address" queryout "C:cptest.txt" -T -c -t,'
I have a page which is used to filter through a list of jobs. The form is built dynamically with values available in a database (ex. education level, element, full/part time, etc). I have checkboxes and radio buttons.
On submit, I am able to pass the FormCollection, loop through all that, generate my parameters, pass them on to my stored procedure, and return the resulting job list. The problem is that when the page reloads with the results, the filters are reset. How would I make sure that the search parameters (filters), are kept ? How would I re-select the fields in my form ?
JobExplorerController.cs
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Sample from my View (Index.aspx) :
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I am running a sql script which Inserts 500 rows and after each insert, it calls a stored procedure which diplays result in the results window. So after executing 100 rows, it throws an error that maximum number od results in the results pane has reached its limit but the query executes successfully. How can we disable the stored proc output to not display in the results pane. I do not have access to the stored procedure.
View 4 RepliesI cant seem to find a good example of how to build the query logic. We are allowing users to search based on lat/long and need to add radius as another parameter. So you enter 29.30125 as the latitude and -95.04590 as the longitude and pick say 15miles as the radius, i need to return all records that fall within that radius.. can someone suggest a good site to review this type of query?
View 1 RepliesWe recently migrated a web app from one Prod server (Prod 1) to another server (Prod 2). There is a session varialbe checked inside the page load event of the default master page. I have enabled session state both in web.config as well inside the pagedirective. The compilation went through without any issue. The web app is also running just fine on the server but the log file keeps logging a warning message. There is no run time error.
"System.Web.HttpException: Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration><system.web><httpModules> section in the application configuration."Any idea why this is happening on one server vs other?
Currently in an .aspx file, I am storing a value (filename that was created in that session) in an hidden text box. When the user clicks on the "Print" labeled Hyperlink control, it opens the file that was stored in the hidden text box control. But when the user goes to different screen (in the same session), I loose the filename value that is stored in the hidden text box control. So I would like to store the filename variable in a session variable. So that if the user leaves this .aspx file and comes back to this .aspx file I can load the value into the hidden text box from the session variable.
View 11 Repliessales.aspx.vb
Custom function which stores the current DATE into todayDate. I use this function to convert system date into SQL friendly date.
sales.aspx
I used Data Grid and SQL Data source.
SelectCommand="select * from sales where aab = 110026"
I want my select statement should take the date from todayDate.
i.e.: SelectCommand="select * from sales where aab = todayDate"
How to write this statement in correct syntax.
i am wishing to store the query result in any variable, have look at below code.
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I have marked the code with bold, where I am getting error.
how do I store query result in any variable.
I want to use session variable for ConnectionStrings in SqlDataSource, so the same script can be used with different users with different databases. My SqlDatasource code is :
<asp:SqlDataSource
runat="server"
ID="sdsAvdeling"
SelectCommand="SELECT
* FROM [Avdeling] ORDER BY [Avdeling]"
ConnectionString="<%$
ConnectionStrings:UtstyrConnectionString %>">
</asp:SqlDataSource>
In Page_load, I assign the connectionstring for the SqlDataSource like:
sdsAvdeling.ConnectionString = Session["ConString"].ToString();
where
Session["ConString"]
is assign to "UtstyrConnectionString" when the the user logs in. When running the script, I get the following error: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.
This should be really simple and I am new to asp development.
I am using ASP log in controls..when user logs in, I am storing the userid in a session variable. On this another page, I want to put the previously stored session variable value into a table using Insert statement.
in my sqldatasource..here is the code..
InsertCommand="INSERT INTO tblMain(PatientId, UserId, IncAge, IncDeNovo, IncAnginaIschemia, IncNative, IncLesions, IncStudyConform, IncStenosis) VALUES (@PatientId, @UserId, @IncAge, @IncDeNovo, @IncAnginaIschemia, @IncNative, @IncLesions, @IncStudyConform,
@IncStenosis)">
I have hosted my web forms files and reports files two different IIS instance in same server. When user login i keep username inside session variable. According to that session variable i checking roles each web forms page load event. i share session variable between two difereent IIS instance in same server?
View 1 RepliesI had a .net 4.0 vb.net page that was setting session variable and setting a hidden form value to the same value. It was a paypal buy now button. When the user selects it, they are sent to paypal for payment. If the transaction is good, they are redirected back to another page on my site and a hidden value is sent back with the invoice I originally sent them. They are sending the form value, but my session variable does not available.
From the user point of view it's all seamless.. Is it the same session? And should my session variable be available?
In my asp.net website I am creating a session upon user login and I would like to perform some operations in the database just before this session will expire.I am having problem in determining where should I write code and how will I know the session is going to expire.
I am not sure if 'session_end' event of 'Global.asax' suits my requirements as the session I want to check is created manually(not a browser instance).
How would I go about using my session data (ie username) for an SQL query to populate a dropbox? Here is what I have so far: SELECT Client_Name, Client_ID FROM Client WHERE (Client_Name LIKE '%@Client_Name%')
View 6 Repliescan we grab a global variable or Session or View State variable in the javascript or using jquery?