Conditionally Disable A Detailsview Databound Field?
May 19, 2010
I have an ASP.Net detailsview control. Its DataSourceId varies and I set it in Page_load accordingly... (based on LLBLgen sub types, but this is not too important)I guess this is a page lifecycle leaky abstraction I am not "getting".The problem is that I bind to fields that may or may no be there depending on the datasource...To "disable" a bound field under certain conditions I've tried wrapping the bound field in a panel which I set to visible or invisible in code-behind, but I still get the following error:Sys.WebForms.PageRequestManagerServerErrorException: DataBinding: Entity does not contain a property with the name 'FilePrefix'.I change the detaislview.datasourceid in pageload...might be too late in lifecycle.I don't want to bind to that field, as it doesn't exist for the new datasource, but it tries to do so none-the-less and I get the error.[Edited]: Code as requested...ASP, detailsview bound column:
Say I have a DetailsView with a bunch of fields, and I want only certain kinds of users to edit a few of them. They're too few to split them into another DetailsView, so what I'm thinking is to find some way to only allow a user to edit them based on some code-behind logic, effectively making them read-only at will.
I feel it's important to mention that the fields are both TemplateFields, not normal BoundFields with ReadOnly properties. For some reason the required functions don't jump at me from reading the documentation. Oh and I need eveyone to see their specific values, I just want to restrict edit access to them.
I am using xVal in a ASP.NET MVC project. One of the forms has two buttons and i want to disable the client side validation when one of the buttons is clicked. Is there a way to conditionally disable client side validation in xVal?
AM having a datalist with fields repeating based on some conditions say some textbox to enter Name ,DOB,Occupation,cell no,etc..and we have a button "Accompanying Person" .When this clicked i have to show same controls and enter details of accompanying persons like name,cell no etc...
SO same controls i have to show multiple times...but based on member /accompanying person i am hiding id field..but required field validator showing when the id is hidden..since this id is inside datalist and id textbox will be different how to hide this required field validator
I am facing a situation where I have to disable GridView field (in EDIT mode ) conditionally.
Here is the situation,GridView has 5 fields "Product Name" "Small" " Medium" "Large" "XLarge"
Here is the problem, application has section where user activate/deactivate sizes (SMALL,MEDIUM,LARGE,XLARGE). Suppose User activates "SMALL" and "LARGE". Now When the GridView is populted normally, I don't have to disable any fields. But when the user clicks "EDIT" on GridView row, I want "MEDIUM" and "XLARGE" fields to appear as disable.
Here is what I know
1) I will have active sizes in SESSION ... in the above case (SMALL and LARGE)
2 I know I have to catch GridView_RowDataBound and then I have to check for the edit mode for the row.
How Do I prepopulate A databound textbox in detailsview. When I place my text in the textbox the error says "Cannot enter 'description' into database insert fails.
I have 2 fields in my gridview one called ScriptType the other BagNo, when a user click the edit button, I would like the BagNo filed to be disabled if the ScriptType field is = "TTA" and enabled otherwise. How can I do this?..something along these lines see below..I am using VB..
The problem is that BindHeaders is called multiple times. I was expecting it to fire only once since a very similar code I used to customize the GridView control to use our mapping utility on the headers works this way.
I have a Details view containing a 2 fields. A Name and a phone number.The Name field is a template with a dropdown list that's popuplated from a database table of Names and Phone numbers. The dropdownlist shows the names. When the user selects a name I want to put the phone number into the second field in the Detailsview.
I have to modify a page so that depending on who views the page i will show client or client Type, its easy enough to change the text but I cant see how to change the datafield
I have an "effectivedate" field that is displayed using a label inside a detailsview control... In the code behind I need to add 12 months to this to check if a policy is up for renewal or not...
To find the control I use this code... Dim EffectiveDate As Label = DetailsView1.FindControl("EffectiveDatelbl").ToString But when I try and convert the label to datetime type using this... Dim ExpireDate As DateTime = EffectiveDate.AddMonths(12)
I get the error - Cannot convert string to date, addmonths is not a member of label etc...
The original Item Template was Enabled ="false" I changed this so that you did not have to set the row to a state of edit in order to just select a row. I enabled it so that you could "select" any row with out putting it in a state of edit. the only value changing is if its selected or not. What i am trying to do is use the Data Source Update method to update the bit in the database based on the check box. Currently Update() returns 0. I believe this is because the row/feild is not marked as changed so the Data Source does not see it as something that needs to be updated.
What I am hoping for out of this is post is a way that the rows whom check value has changed to be marked as changed/edited so that the data source will update the database with the values of the check boxes. If all rows are updated this is acceptable as well. I know this is a super simple solution but i have been out of the .NET for a little bit.
I'm using a gridview to extract a set of records. I need to add another field to the gridview, which can calculate the difference between a date associated with each record and the current date.
I have a DetailsView control with DefaultMode = ReadOnly in my page. When the page loads, it shows the edit link. I would like to programmatically hide the edit link when the user is an administrator on page load. By default, I have set ShowEditButton="True". How do i reference the edit link when it is automatically genereated from the CommandField.
When I click to edit the First Name, the field Last Name als goes into Edit mode. I just want the field where I clicked the edit button that goes in Edit mode.
I am using a detailsview to show a record from the database for editing - or for inserting a new record. When a checkbox in one of the fields is changed by the user I want to hide another field. To avoid unnecessary postbacks I want to use javascript. Here is a simplified version of what I have so far:
[Code]....
I have been able to select the "txtPromoCode" textbox and hide it, but it leaves the headertext. I want to hide the whole field.
I would like to know how can I easily customize my detailsView that when it is in Create mode ID field should be invisible I can rememebr that it was sth like visible = <% code here ... (IsCreated ??) here is an example:
I have a master-detail page, in which I use GridView to display multiple rows of data, and DetailsView + jQuery dialog to display the details of a single records. only one DetailsView is open at a time.
I need to be able to pull out a single field of the open DetailsView, for manipulation using JavaScript. Is there a way to give a unique ID to a given field in DetailsView, so I can use getElementByID? Or is there another way to accomplish what I'm trying to do?
I just can't figure out how to approach this, but this is what I want, would be I have a database-table containing an XML-field. Using LinqToSql I succesfully bound this table to a GridView and a DetailsView control.ow I wrote a WebUserControl that renders a bunch of textboxes, and has a method 'Serialize' that returns the XElement-object that I can use in my codebehind to assign it to the LinqToSql-property to save it to database. It also has a public property 'Xml' (type string) that I can use to Bind() the xml-string from the database to it, so the WebUserControl can prefill it's textboxes.
im making a details page but i want to add another filed on the detailsview i want the url of the page to have 2 parameters, one for the datasource of the detailsview and one for the field i want to add how can i accomplish that? for example:
accountd.aspx?id=12&ammount=50,00
and then the detailsview will have the details of account 12, and one more field that has value 50,00
I have a DetailsView control in a VS2010 project. There are 20 fields, most of which have been converted to template fields. However, when I right click the control and choose Edit Template, I only see the first 15. I cannot choose to edit any of the template fields beyond that. The fields work when I run the project, but I cannot edit them via the designer. Is this by design or is something corrupted?
I've got a Gridview which has a datasource to a particular database.
I've got a DetailsView which has a datasource to a table in another database.
when I select a Gridview row, I need to populate a field in the DetailsView with the Primary Key field (showing in the Gridview) from the Gridview.
Can this be done (if so, how?)?
Also (but not as important) :
If there's no field related in the second table, I'd like it to come up in Insert Mode - if there is a field related, I need it to come up in Edit mode
I'm trying to figure out what I'm doing wrong with my code. If I use the code below in a non-masterpage aspx page with <head><body><div> tags it works with no problem. Code that works:
