Forms Data Controls :: Datasource Can Potentially Change Any Time
Mar 9, 2010
I have a web content page that contains a ListView with two identical dropdownlists, one in the InsertItemTemplate and the other in the EditItemTemplate. I populate each from the same datasource. The listview is wrapped in an UpdatePanel.Any template change requires from 3-5 seconds to render which is not acceptable. The datasource can potentially change at any time thus limiting my options.
Is it possible to change the select, insert and update stored procedure of an SqlDataSource at run time. I don't mean to change the definition of the stored procedure, but I mean to change the assignment, i.e. To change the select stored procedure from "selectSP1" to "selectSP2" at run time. Is it possible?
I have a chart on a page and i call a dataset which sends the infomation to the chart this works fine and all the infomations is displayed fine. However my x axis is a time which is UTC time. Most of the people looking at the charts will be using EST is there anyway in which i can change the Xasis times to corespond with EST instead of UTC
I need to know that how i can edit the particular cell value in grid view at run time just by clicking it(value) then it shows text box and after enter any value, it then save in database.
I am using grid view with row "data bound event" at row row data bound i am using some function with loops to fill drop down of grid view in template columns. grid view gets populated with selected index change event of drop down. my problem is the asp.net page is getting slower i mean when grid populates its taking some time and some time page get hanged what to do to get rid of it?
created a data source DS_QCategory that select data from a table but according a passed parameter which is a DDL selectvalue.I write the sql statement like this (select * from myTable where ({fn YEAR(tblarQuestions.QuestionDate)} LIKE (@QuestionDate)))this function will compare only the Year from my full date field with a DDL that include all Years like 2008, 2009, 2010 Then I create a report using reportviewer control and i defined the parameter in the bjectDataSource of the report then I added to my Years list in the DDL something like this "All" to select all data from myTable regardless the parameter so i created another Datasource DS_QCategoryAll to select all data from myTablewhat I need is to change the object data source of my report once "All" is selected: this is my code:
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But get this error:
"
A data source instance has not been supplied for the data source 'DS_QCategory_tblarQuestionCategory' "
I want to create a data type for time but i dont know how, i have researched and the method that was given has its flaws as well as most of the results are about getting the current time.I just want a data type that has the time format.
I have an application which imports data from csv to sql server 2005. It is taking long time to import data from csv to sql server 2005. it has a timer. on tick of timer, I am checking if current rown in csv exists in database. If it exists, It is not added to sql server otherwise, It is added that row to sql server 2005. Also, In page load, It checks on each tick, whether user is logged in or not. it adds value to log file that user is logged in. How can I optimize this ?
restrict user not to insert data in a booked time slot,suppose User reserved an item say below dates, now how to restrict other users to reserve that item at the below time.
how to suppress the "AM" in the gridview (template Bind("RideTimeMin", "{0:t}")? Don't tell me to use military time because the function is not "time on a clock"; it's how much time is allowed for a task (in this case the min/max hours & minutes that horses have to complete a 20 mile trail; e.g. 05:00, 05:27, etc). I'm currently accomplishing this in the "ondatabound" function by "..RTmin.Replace("AM","")". I have looked and looked at all the websites that talk about datetime formatting but have yet to find a way to do it upfront in the gridview bind statement.
I was reading about "Change Data Capture" functionality in SQL Server 2008. It sounds awesome. My implementation of it would be in a website environment where ASP.NET pages use SQLDatasources to do inserts, updates and deletes. When enabling "Change Data Capture" can you store additional information supplied from the website like a UserID, SessionID, UserRole etc so you can identify who did the insert, update or delete? [URL]
I attempted to change a table columns data type and in the process caused a lot of issues. I had a date column in one of my tables and stupidly changed it from varchar to date. When I tried to run queries on it I keep getting the 'cant find column 3 error'. Now that tables structure is :
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So column 4 is actually the date column. All other queries work for this table. I then tried to change it back and then copied all data to a new table and now I am using the new table and converting the dates as needed but I am still getting the error.
SELECT * FROM postlinks WHERE postlinks.date >= CONVERT(datetime,CONVERT(varchar(10),GetDate(),112))
I have a date/time stored in a smalldatetime field (ms sql 2005) that i want to compare with the current time and receive a difference. If the difference is less than 30 minutes, do this....if more do that....
My problem is that I have a grid view that show the data from database.In my gridview i add a column name date .like eg You knw that when we send a scrap to anyone then show time how much time to send a scrap.
This is the sqlDateTime overflow problem again. Background. As I'm sure you know dates must be between 1/1/1753 and 12/31/2999. If you have an empty date field, it throws and exception. So I created a function (below) that solve the problem when attempting to update or insert a record with a date field. Works great.
Public Shared Function MakeDateField(ByVal pasDate As String) As Nullable(Of DateTime)
If IsDate(pasDate) Then Try If pasDate <= System.DateTime.MinValue Then Return Nothing Else Return CType(pasDate, DateTime) End If Catch ex As NullReferenceException Return Nothing End Try Else Return Nothing End If End Function
So I thought about using a time field. I have the field, have the validator in place and then attempted to test the page. It resulted in my least favorite error message "sqlDateTime overflow".
I can think of several workarounds like adding a date or a fixed date to the time field, or converting it to a string. Each of these is problematic.
IS THERE A BETTER WAY TO UPDATE/INSERT TIME FIELDS.
I have a gridview on my page. I have a checkbox in each row of this gridview. For each checkbox in the gridview, I'd like to update my table accordingly, but I don't want them to have to hit a submit button every time they check the checkbox. I want them to check all the boxes they need to and at the end, they should hit one submit button.
I have 2 fields being displayed in a Gridview, StartTime, EndTime. I want to create a 'Time" column which shows the elapsed time in HH:MM format. (StartTime - EndTime) This was all generated with VS2008, table is pulled from an SQL Query.
I was wondering if anyone knows of a good login stored procedure that can be freely used and features login limits and so on (basically a good one) With my limited SP knowledge, I've tried to create one myself, I haven't completed it yet as I'm not sure on how to compare the last login attempt time against the current time (it's in the comments).
I am trying to implement a license in which we will provide a license file which will be placed on the server root directory.This license file contain encrypted strings which have ServerName, Concurrent Sessions , Timeperiod.n this i have two issue.How could i calculate time as user can change server time.How could i maintain the concurrent login sessions [because i can't catch the event hen user close the browser].I will welcome any tehcnique otehr then javascript solution.[even polling] but i can't save session information in database
I have a GridView with an alternating Css style. The GridView has a column called tradeId. What I want to show is an alternating colour based on a change in the tradeId. Is this possible? It will make it easier on the eye to group trades together by colour. Here's the GridView code as it is right now: