DataSource Controls :: Retrieve Part Of A Data Field?
May 16, 2010
how one would retrive a value stored among several values in a single database field?
For example, the MS Customize CreateUserWizard walkthrough [URL] adds the ability to save the users preference for subscribing to a newsletter and allowing their info to be shared as 1 value in the comment column of the membership database. The result ofaspnet_Membership.Comment is Subscribe=TRUE&ShareInfo=FALSE.
My question is if Subscribe=TRUE&ShareInfo=FALSE is in one field of the database, how would you retrieve just the Subscribe=TRUE value from the field and use it to send a newsletter to the proper users while ignoring the ShareInfo=FALSE value?
I have text field on a sql server table and I retrieve it on string variable using datareader : string result = reader["MyTextfied"] but I have this errors ( text or binary field cannot be troncated ) My text fied contains a large of text
I'm an experienced PHP programmer that is new to ASP.net (C#). I'm trying to figure out how to do a manual echo of a specific field from an SQL database and was wondering how you do an if condition in case the field would meet certain criteria ?
What I want the script to do is check in the database if a certain condition is activated, then the html page should echo a windows media player object with the source of the video coming from the database itself ( $line[Video], and if the condition isn't active then either don't echo the player or just echo an old video (in the script I'm just printing a message).
I have a ReportViewer control on my aspx page that displays a report defined in an rdlc file. The rdlc has a textbox for displaying the number of rows on the report (using the =Count function).
I am looking for a way to retrieve the value of this textbox in my code-behind.
I'm trying to retrieve the value of the "ListName" field that was clicked in the repeater but I'm getting null ("") in "ListTitle", please could someone correct my code:
Protected Sub repTriggers_ItemCommand(ByVal sender As Object, ByVal e As RepeaterCommandEventArgs) Dim ListTitle As String If e.CommandName = "trigger" Then ListTitle = CType(e.Item.FindControl("lnkTrigger"), LinkButton).Text
I want to retreive some data from an SqlDataSource using it's Selected event I've tried
DataView dv = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty)
but here it's going into in infinite loop and then it gives me an StackOverflowException error in ASP.Net Development Server (my dev machine) and if I publish to IIS it requires me an user name and password to connect to server and gives an InternetExplorer error "Sys.WebForms.PageRequestManagerServerErrorException. An unknown error ... status code returned was 400. The SqlDataSource is in an UpdatePanel. Maybe this is why I get this.
I want to retrieve the data from the last record of a table. For eg: I have sorted the data in my table and want the value from the last record? How can I do that?
Is there a way to check that "saving" data to a table was successful and then do something after that?
How can i retrieve the data in linqdatasource in code behind?i have a dynamic database design with column storing the datatype eg. text, int, date.i need to retrieve the value in order to populate the control and bind it.
I need to retrieve data based on 3 different selections(current year, 5 years, 10 years). If the user select current year, then I need to pull data with the most up to date year, if the user selects 5 years, then I need to pull data for 5 years from the most up to date year in database. I am trying to accomplish this in sql due to using object DataTables in asp.net 3.5. I am able to do this with separate queries but I need to accomplish this with one query. I was going to use CASE statements but not really sure if I am approaching this correctly.
Is there any method by which we can retrieve random data from a dataset or rather directly from a table.
For example, I have around 30 questions in my table, I just wanted to display 20 among them and that too in a random order without the same item repeating. Can we achieve this using SP or through some Dataset manipulation?
I have a page in my website where there is very little code-behind. I only have two lines of code in Page_Load() and the rest of the code is declarative ASP.NET code. I have a FormView control which uses a SqlDataSource to get some order information. The SqlDataSource calls a stored procedure called usp_GetOrderDetails, here's the code for the SqlDataSource:
[Code]....
<truncated>
What I want is to grab the screenshotId from the SqlDataSource when the usp_GetOrderDetails stored proc gets called and populate it into a field on the page called screenshotId. I then want to use this screenshotId to get an image from the database based on Id. populating the screenshotId field. How do I do this - do I need to have something like OnDataBound or something like that?
I need to retirve data from two tables...when i click a value in dropdown list, i need to retrieve values from two tables based on that id( which i have selected in dropdown)..so when i have written query ( "Select assign_issue.issue_assigned_to, assign_issue.created_on,assign_issue.last_Date, issue_register.issue_desc,issue_register.issue_Priority from assign_issue INNER JOIN Issue_register ON assign_Issue.Issue_ID = issue_register.Issue_ID where issue_register = '" + ddlissueid.selecteditem.text + "'")..query is executing ..when it comes to dr = cmd.executereader()..Dr is unable to read..it is showing false when i trace..unable to read into while loop.
I'm trying to make a dropdown list with data available based on the users login name. Heres what I have as my SQL Query in the SQLDataSource:
SELECT Client_Name, Client_ID FROM Client WHERE (Client_Name LIKE '%@Client_Name%')
So say if the login username is "User1" but the database client name is "User1 Steel" I want the dropdownlist to pull "User1 Steel" as the display and Client_ID as the value from the dropdown list.
I have a 20 to 30 fields on a form. Most of them are optional. However, the users can fill out what they want. If a user dosen't fill in a field when data is sent to the database it's sent as blank, instead of NULL. Is there a way I can generically say "for all textboxes if Equals("") then DBNull.Value". Without going through each and every textbox?
I am attempting to compare one of ASP.NET's membership userID's with the current userID in an SQL query, however because of the "hyphens -" in the uniqueidentifier field type of userID, i am unable to compare the ids. is there a way around this? (in my example, family_id from tblFamily is the userID that has type uniqueidentifier). my code as it stands is:
Dim UserID As String = New String(Membership.GetUser(User.Identity.Name).ProviderUserKey.ToString()) Response.Write(UserID) Dim strConn As String = ConfigurationManager.ConnectionStrings("ApplicationServices").ConnectionString Dim SQLI As New Data.SqlClient.SqlCommand("SELECT family_name FROM tblFamily WHERE [family_id] IS " & UserID & "") Dim sqlCon As New Data.SqlClient.SqlConnection(strConn) sqlCon.Open() SQLI.Connection = sqlCon Dim RSI As Data.SqlClient.SqlDataReader = SQLI.ExecuteReader() RSI.Read() Dim FamilyName As String = "0" While RSI.Read FamilyName = Convert.ToString(RSI("family_name")) End While Response.Write(FamilyName) RSI.Close() sqlCon.Close()
One of the fields in a table stores a long article. I just want to extract the beginnig part of it; could be any portion of it, like first one or two or three paragraphs. The vb code shows below:
Imports System.Data.SqlClient
Partial Class _Default Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Try
[Code]....
I really don't want the whole article displaying in the literalBrief. A few paragraphs from that article would be good enough. Is it possible to achieve that? At SQL level, or in VB coding, something like substring function?
