Please consider the following line of code in an MVC5 EF6 project:
#Html.DropDownListFor(g => ssi[0].property1, new SelectList(dd, "value", "text"), ssi[0].property1)
The issue I have is that when the page loads, the correct selection is displayed in the drop down based on the model.property returned from the database. However, when saving using #Ajax.BeginForm, unless I change the value in the drop down which is not always required, the original value does not get saved. Instead a null is recorded and drop downs revert to unbound state in terms of their selected values.
My question is how do I ensure the original selected value loaded in the dropdown is saved back without touching the drop down?
Thanks
Having looked at another MVC - Set selected value of SelectList, the issue was that I was using a selectList in my model. (dd). Having read the other answer I have realised the SelectList should not have been in my model as it is a UI element, instead I should have used a simple "text" "value" model as the collection in the statement. I already had this in my model so I removed the SelectList and bound dd to the "text" "value" collection. This fixed the issue. Apologies if I've wasted anybody's time.
Related
I need to change the binding of my table when i click on a button and it is working when the table is not empty but if the table is empty it is not working
i tried this solution(because the table is already defined in xml) and it is partially working
oTable.bindItems("/CarsSet", oTable.getItems()[0].clone(), null);
the problem is when the table is empty it is not working since oTable.getItems()[0] is undefined
one cheap solution is to clone the first element template and save the reference when the Table has been rendered the first time. After that you can use it when you change the binding otherwise (if the table is empty) you will get that error.
The template item should be defined in the dependents aggregation. This way you can always clone it regardless of the state of the binding.
You can refer to this sample to check how dependents works.
I have this continuous form "Results" built on a "Search" query in Microsoft Access and I want to show a hidden text field "Number" (with its Visible property initially set to False) depending on the value of one query result written in a "Type" combo box. My code is currently as follows:
Private Sub Form_Load()
If Me.Type="Reclamation" Then
Me.Number.Visible=True
Else: Me.Number.Visible=False
End If
End Sub
This does not seem to work, however the code does fine when triggered by a change event. Adding, changing and deleting records are also disabled in "Results".
Should I run code from a macro, on the query or try another event (I've tried many events though with no success)?
Thanks for the help, and sorry for the noob question!
Continuous Forms behave differently than what you think. It cannot work with UnBound Controls. If the control Number is bound it will take effect on only the Record that has foucs. Using Form Current combined with Load should/might work, but again it will not be the best solution. Because it will be applied to all other records in the SubForm.
Example of what I mean is, if the form has three records. First Record has Type (a terrible field/control name) "Reclamation" then the "current" record's Number (again a very bad field/control name) will be hidden along with all the other record's Number, even if they have other Type's in their record.
I would suggest you to go with Single Form.
I have a form in Access where I have 2 unbound multi-select listboxes, with some code to move items between them.
Each of the fields in the table which are shown in the listboxes are boolean values - if the value is true then the name of that field shows up in lstSelected, and if false shows up in lstUnselected.
The listboxes have a RowSourceType of Value List, and the value list is generated programatically by looking at the underlying record and constructing a string with the field names where the boolean values are true for lstSelected and False for lstUnselected.
On the form I have two buttons, cmdMoveToSelected and cmdMoveToUnselected. When I click on cmdMoveToSelected it changes the boolean value of the underlying field for any selected items in the lstUnselected listbox from false to true by executing an SQL string, then rebuilds the value lists for both of the listboxes.
I have all of this working just fine. If I do a me.lstUnwanted.requery and a me.lstwanted.requery then everything moves and shows up correctly, and the underlying fields are edited correctly, BUT when I click on anything else on the form I get the error:
The data has been changed.
Another user edited this record and saved the changes before you attempted to save your changes.
Re-edit the record.
Now I've found a way around this (jobDetailsID is the primary key of the record being dealt with):
Dim intCurID as Integer
intCurID = Me.JobDetailsID
Me.Form.Requery
Me.Recordset.FindFirst "JobDetailsID = " & curID
This requeries the form and then moves back to the current record, and this gets rid of the error, however it causes there to be a delay and the form to flicker while it opens back at the first record, changes back to the correct record and repopulates the list boxes.
Is there a way to do away with this error, or get it to trigger programmatically so I can catch it by turning the warnings off via vba?
Thanks in advance.
Maybe it helps not to bind the form to the table being altered by cmdMoveToSelected, but to a query that doesn't contain all the boolean fields. If cmdMoveToSelected alters one or more boolean fields, the record is changed, but the query result isn't. Not sure if it's sound though.
It also sounds a bit like a design problem rather than a form problem, storing options in boolean fields instead of into a related table.
Probably the best solution would be to not directly update the current record in the table while the Form is dirty. Instead, update the values of the fields within the form itself (Me!FieldName) as the items are moved from one List Box to the other, and let the form write those values back to the table as usual.
I seem to have fixed it, though the fix doesn't make a great deal of sense to me.
I added in a Me.Refresh to the button click code, after I had requeried the two listboxes and it appears to have stopped the message from coming up. However this only works when I have the JobDetailsID textbox visible on the form (though I expect this is arbitrary and any field-linked textbox would work).
Can anybody explain to me why this works? I'd like to understand fully when to use requery, refresh etc
I've had this sort of thing happen when I've left the form RowSource query hanging in place after converting the controls to unbound textboxes, etc. The general Form rowsource query (to bring in all fields I might possibly end up using) provides me with a query-list identical to the table fieldnames, making it simple to select them for control-names as needed. Works fine, but you have to remove the form rowsource query after all the names are matched-up. (After which DLookup and BeforeUpdate works for getting and storing values and changes.)
I can't figure out how to make a field autocomplete in ATK.
I guess it has something to do with the type "reference" but still not sure.
Suppose I'm looking for a client name in a "line" type field, then the autocomplete should list me all/topXX matching names.
Scenario 1:
Once I hit [Enter] I'd need all that row from DB loaded in a form fields so I can edit the record.
I guess this requires getting the client ID first then posting to an "edit" page then calling "loadData()" method for that ID and populate fields.
Scenario 2:
I'm assignig a job request to a client. First I find the client then I could store its ID in a hidden field to be posted then.
Any advice?
TIA
I would suggest you to go with 2 forms. First form with a single field, and when field is changed it automatically reloads second form including the parameter.
You will also need an autocomplete field. Autocomplete is somewhat buggy in 4.0, but it have been polished up in 4.1 by using a technique in http://jqueryui.com/demos/autocomplete/#combobox
For use with models and controllers and also dropdown, example is here:
http://codepad.agiletoolkit.org/reloadform
Alternative example:
http://demo.atk4.com/demo.html?t=22
Since 4.1, you can also use autocomplete fields instead of reference:
$form1->addField('autocomplete','user');
I am trying to store metadata (basically a unique id) along with each cell of a table in a Word document. Currently, for the add-in I'm developing, I am querying the database, and building a table inside the Word document using the data that is retrieved.
I want to be able to save any of the user's edits to the document, and persist it back to the database. My initial thought was to store a unique id along with each cell in the table so that I would be able to tell which records to update. I would also like to store some sort of "isChanged" flag within each cell so that I could tell which cells were changed. I found that I could add the needed information into the "ID" property of the cell - however, that information was not retained if the user saved the document, closed it, and re-opened it. I then tried storing the data by adding a data to the "Fields" collection - but that did not work and threw a runtime error. Here is the code that I tried:
object t1 = Word.WdFieldType.wdFieldEmpty;
object val = "myValue: " + counter;
object preserveFormatting = true;
tbl.Cell(i, j).Range.Fields.Add(tbl.Cell(i, j).Range, ref t1, ref val, ref preserveFormatting);
This compiles fine, but throws this runtime error "This command is not available".
So, is this possible at all? Or am I headed in the wrong direction?
Thanks in advance.
Wound up using "ContentControls" to store the information I needed. I used the "Title" field to store the unique id, and the "tag" field to track whether the field had been changed or not. See this link for more info: http://blogs.technet.com/gray_knowlton/archive/2010/01/15/associating-data-with-content-controls.aspx
Since a "Word 2007 Document" is XML, you can add a namespace to the document then adore the elements with attributes from your namespace. Word should ignore your namespace when loading and saving. Moreover, you can add new elments to store any information (metadata) needed.
With that said, I have not used this technique with Word, but I have done it successfully using Excel 2003.
First thing to try, is create a bare "Word 2007 Document". In your case, add a simple two by two table. Open it with a text or XML editor and add your namespace, and adore an attribute and add an element. Open with Word make a change then save it. Open with editor and make sure your namespace attribute and element have not been changed.