i am making a simple cms system
but I have a problem when updating some information
here is the code
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and in the page load everything is fine
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I build a webpage to edit the data entry, all the textbox wroks fine. However when I update the value originally took in using dropdown list , I get error and couldn't get correct update.
View 2 Repliesi have 5 methods in classA. each and every methods i have open the sqlconnection and close it, instead of that is there anyway to create a sqlconnection at one time if its opened then no need to create a new connection, if its closed then we have to connect.
View 5 RepliesIs it possible to use a pre-existing ConnectionString in this construction?
myConnection = New SqlConnection("server=localhost;" & "database=pubs;Trusted_Connection=Yes")
Regards -Penn
I have a whole bunch of data access methods where in each one I am doing this
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and them moving on with my SqlCommand and SqlDataReader and so on.Is this creating to many instances of an SQLConnection?I was thinking doing this instead. Creating a SqlConnection Manager which would look like this
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and then in my database access methods
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Is this a good or bad idea and why?Also would this even be neccesary?
'SqlConnection' is not defined in the behind code as follows:
Source Error:
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Source File: I:WebsitesCMPHostFox BackupDefault.aspx.vb Line: 24
Snippet reads as follows:
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can capture return value from a SQL by using SqlConnection SqlCommand
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I'm trying to determine whether it is better to declare the connection outside with it's own using statement or to create it inside the sqlcommand itself. This is in regards to a single command interaction with the database (no loops).
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Or
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I am using "ASP .Net 2.0" with "SQL Server 2005". What is better and preffered approach towards making a sqlconnection to interect with database?
1. To open new connection each time we need to interact with DB and then close the connection
2. Or to make a shared database connection for whole web application.
I know you can point to a OnSelecting event on the aspx page datasource. But I've created my SqlDataSource in the code behind. Is there any way to point to a selecting event in the code behind (I need this to provide the parameters)? Or should I just include all my logic in the Page_Load event (where I keep my SqlConnection)Here's what I have so far:
protected void Page_Load(object sender, EventArgs e)
{
SqlCommand myCommand = new SqlCommand();
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'i'm working with visual studio 2005 asp.net c#. and i want to bind my website to my database with the "sqlConnection"
how do i get and set details from the database to the website fields with the sqlCommend and ect...
On the form I have
txtFirstName
txtLastName
txtAddress
The GridView is a command "Edit"
But I do not want the information update within a GridView.
If click on the "Edit", the data can only change update within the GridView.
I wish to correct information in the control txtFirstName, txtLastName, txtAddress when I click "Edit".
Im trying to write a sql Procedure that will get information on the day a user specifies.
so far i have written:
set ANSI_NULLS ON
I'm using SQL server 2005 and Visual Webdeveloper 2008 express.
I have a database created and I've successfully connected to it. My question is, would it be possible to do something like search the first column of a table for a value, get the index of that row and use the index to get the value of each column? Sort of like you would with an array.
Are there are good tutorials out there that I could use, everything I found shows you how to display your information in a datagrid, which I've already done, but I can't find anything on how to get an individual row's information.
How can I retrieve information from delete rows. I delete some rows from table in dataset, then I use method GetChanges(DataRowState.Deleted) to get deleted rows. I try delete rows in original table on server side, but it finished with this errors. I try get value of columns from row, which was deleted
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I would like to check my database for to see if a user name is available but my script isn't working.
I am taking input from a text box call unametextbox and i'm trying to extract any matching username from the database, this is my code.
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It's probably something small but I can't seem to find what went wrong. I am trying to insert information into my database. It goes through the code just find but it doesn't insert into my database. Here's my code:
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Here's my webconfig connection string:
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I have a C#/Asp.net web application which caches SQL DB schema information. Is there a way that I can determine what child relationships a given table has? I have looked into using the DataTable.ChildRelations property, but it is never populated with items unless i manually create a relationship using the .add property. I also have access to DataColumn information for each column in the database.
View 4 RepliesBasically the main page has a couple of DataSourceObjects sucking information from a local database and displaying them on the page. The page is a form, which then generates an HTML email and fires it off using the SMTPClient. The problem is that I cannot seem to get the data from the database to be accessable from the code-behind. Attempting to get data from either of the ListViews results in a number of Null Exception errors, mainly when using the ExtractItemValues method. The OrderedDictionary that comes back always seems to be empty. So I figured I'd use one of the 3 Object Data Sources I already have set up, that queries the actual database, but cannot find any way of calling the Select statement present in either of them, let alone managing to store and access what comes back.
View 1 RepliesI have a website that displays information from my database into a gridview. The gridview has a checkbox, that once selected, is suppose to move a 'Y' into the field that has the checkbox selected. I have it generating the code, and displaying the code on my page to confirm, but the database is not being updated. Here is my code,
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I need to enter text in sql in nvarchar(max) .. the text contains titles and paragraphs.
I was using a separate table called paragraphs to enter paragraph title and paragraph content. These get a 'article ID' so I can read them out of SQL. On my page I format title and content differently.
Now I was wondering if I can enter Title format information into sql (as the <br/>) tags, so that i can enter all article information into 1 table column.
I'm using Content Management System, DotNetNuke for my dynamic website. DNN itself they have one database, I named it dnnDB. Inside the dnnDB they have the users table which have the list of users. I need to be able to pull this set of information or synchronize to my own database, myDatabase for development purposes. I do not want to incorporate my database into dnnDB, afraid that I may corrupt the system.
View 4 RepliesHere is the sqldatasource config code: <asp:SqlDataSource ID="SqlDataSource1" runat="server"
View 1 Repliesi want to update the data of a database through a gridview update button
how can i attach a dataconvertion like this
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My sqldatabase is inputting NULL instead of the information from my form. Form is collecting different names and multiple phone numbers for each. names, addresses, zip codes are going in as entered on form but phone numbers are not they are going in as NULL. Columns are set as header is Cell, nvarchar, Length is 15 and I have setup as I did other columns. code for my form is (i have removed some lines that are working as expected)
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