I am trying to update a single MS SQL server table row with multiple ajax call; each call tries to update different records of the same row.
I get the updated values some times and some times all the records I am trying to update becomes null. I have checked the ajax calls and the values are being sent ok.
Can anybody give me any idea what wrong I am doing or what should I check to get the issue ?
To give you better idea about the scenario :
I have two panels with some inputs. There is a review button - when clicked two ajax calls for each of the panel are made sending the input values for corresponding panels. Both ajax call are suppose to update the same row in a table - but different records.
In the same review button click a page is loaded in a iframe to show the values just updated.
Related
I have a dataview grid bound to a datasource at run time. The datasource is filled from an access database via a DataAdapter. The data fills and displays correctly, and updates to existing rows seem to work OK but I have two problems:
When I type something in a new row and then press return or switch to a different row, I want the DataAdapter to add that row then and there to the database so I can retrieve the Autonumber index of the new record from Access and use that to add an associated record in a different table (Entries, a many to many linking table). This isn't happening. In the RowLeave event I have adapter.Update(dsSentences) and then I check for the new row, but the RowCount doesn't reflect its presence even though the newly added data is visible in the grid, and the adapter.Update doesn't seem to have triggered the Insert query that I specified in the DataAdapter. So nothing is added.
(edit: OK, so the new row has not yet been added when this event is fired. Which event should I then use to commit the data and retrieve the Autonumber primary key for my new record? I've tried UserAddedRow but that one fires before you've entered any data into the new row.)
THe second problem is that I need to update the data independently and then have the grid reflect those changes. How do I do that? Is there some call that will force the grid to get the updated data from the DataAdapter via the Dataset? Any help would be much appreciated. I'm almost ready to dtop the whole idea of binding data and do it all through code, Data binfing is supposed to save time but I'm finding it labyrinthine and unpredictable.
FWIW here's the query I'm using to fill the grid:
PARAMETERS nIdCollection Long;
SELECT tblSentences.IdSentence, tblSentences.SentenceText, tblSentences.SentenceParsed, Not IsNull([tblSentences]![SentenceParsed]) AS HasParsed, Entries.IdEntry
FROM tblSentences INNER JOIN Entries ON tblSentences.IdSentence = Entries.IdSentence
WHERE (((Entries.IdCollection)=[nIdCollection]))
ORDER BY Entries.SortValue;
As you can see, it requires a record in Entries. After I've entered a new record in tblSentences, before there are any entries the IdEntry will be null assuming it shows up at all. That's why I need to intercept directly after the Insert, add the record to Entries and requery to keep everything in order. You could do it all in an SQL stored procedure but I have to use Access.
Edit: After a lot of googling I've come to the conclusion that what I'm trying to do = add a record to a table through an additional INSERT query apart from the one handled by the DataAdapter, every time a new row is added - simply can't be done if you are using data binding. I am going to have to delete all my code and start from scratch populating the grid through code (unbound). I think it's the only way to do what I want. I will leave this here as a warning to anyone else not to make my mistake of trying to use Data binding when your data is coming from more than one table. Bad mistake.
I am creating a form that loads all the information from the Activity_Table into the form. So basically when the user chooses the name of the Company from the Company_Name drop down, and selects the site from the Site_Name combo box, it is supposed to return the values from that site and put them into the form.
Basically one site can appear more than once in the Activity_Table. Yet, whenever the user selects the name of the site, it only returns one record. To make sure of this, I used the .Recordcount method to check how many records that will be retrieved.
So when you check the Activity table, the Site "Accra Mall - 630kva Gen 2 " appears 4 times, yet when you check the recordcount, it only says it appears Once. So because of this, I cannot move either forward or backwards to either the next or previous record.
To make sure that there was nothing wrong with my sql, I run the query in the Query Design and it produced all 4 records of "Accra Mall - 630kva Gen 2".
So there is nothing wrong with the sql statement. Can anyone help me out please?
This is when I choose the name of the site
We can see that it returns only One record here
Yet this is the amount of records it's supposed to produce(This was when I tried the sql code in the query design tab. It returns 4 records, Not 1). So the recordcount is supposed to be 4. Not One.
this is when I tried the sql to in the previous picture.
If I replicated your problem correctly then the answer is to set Data-Entry to no. Check your form properties. Under the data tab there is a data-entry property. set data-entry to no. From microsoft at https://support.microsoft.com/en-us/office/dataentry-property-f4236759-27f6-4fcd-abb0-4aa4acd8fe87 we get an explanation:
You can use the DataEntry property to specify whether a bound form opens to allow data entry only. The Data Entry property doesn't determine whether records can be added; it only determines whether existing records are displayed. Read/write Boolean.
I have a datagridview that i fill and after i click on a button and all the rows goes to my database, that is working, but when i want to insert more rows and insert into the database it insert all the rows again and i just want the last ones added.
If anyone could help me i appreciate.
Can't comment so I will write here...
So if I do understand you correctly you are filling gridview sending it to database. After that you fill once more the gridview and send it but this time it also send the one already are on the gridview?
Edit/Update (after the extra info [see below comments])
You can use the SELECT statment to put only values that does not exist.
Before you start using this method/statment you need to know very well which values can be put multiple times so you will write your WHERE statment that way...
I did make a example for you check it out:
Example on DBFIDDLE
There are also another option of you doing this and it is using the IF statment. I will also make a SQLFIDDLE of this but first I need to go to the market and will edit this post with that too once I come home.
I have a jsp which retrieves data dynamically from db and shown in table format. Each row has a update button along with radio button. Whenever i click update on any row it proceed to next update page with only first row value.
Please help me how i could get the remaining rows for updating.
Thank you in advance
Suggestion:
define the corresponding id for the update button and the radio button of every row. I suggest you can define a hidden-text as it.
define a JavaScript function to resolve the logic:
a) get the hidden-text value(id of the row record) about the selected update button or radio.
b) create the target URL with id of the row record.
c) submit id as URL parameter.
define a JavaScript function to refresh the corresponding row with the respond data. of course, you should define a java server interface to get the data of the row id.
The code I created takes data from Highrise API and imports into our MySQL database tables.
This doesn't go to and from the db to Highrise. It simply goes from Highrise to the DB when the sales reps click a "sync" button I created.
Everything works fine when they populate the Highrise custom fields and click Sync. The problem happens when they delete data from a custom field and click "Sync".
I have a loop that does this for each:
mysql_query("INSERT lld_listing_constants (client_hr_id, customvalue, unique_field_id, customglobalid) VALUES ('".addslashes($co_id_hr)."', '".addslashes($subjectdatainner->{'value'})."', '".addslashes($subjectdatainner->{'id'})."', '".addslashes($subjectdatainner->{'subject_field_id'})."')
ON DUPLICATE KEY UPDATE customvalue = '".addslashes($subjectdatainner->{'value'})."', customglobalid = '".addslashes($subjectdatainner->{'subject_field_id'})."'");
So it obviously will INSERT just fine.. or UPDATE if there is a duplicate.. but what if it suddenly becomes blank? How would I check if it's blank?
I think the problem is that pulling the API data - it doesn't return custom fields that are blank.
Generally you'll want to check for the presence of a field before saving its value. If the field exists, assign its value to a variable you pass to the DB query. If not, assign the value to null and make sure the DB query sets null in the database accordingly.