This was because often users thought making a field invisible prevented its contents from getting to the client, when in fact the values were present in View State.
If you need a value of a particular field but don't want to display it, add it to your Data Key Names property and you can access the value through the Data Keys property.
To cancel the update operation, set the collections, if necessary, before the values are passed to the data source.
A common way to use these collections is to HTML-encode the values supplied by the user before they are stored in the data source.
Write("alert(Your updated has been saved successfully')"); or Client Script. Get Type(), "myalert", "alert('" Your updated has been saved successfully "');", true); But in either case, no message box is displayed.
Row Updated grid events to set custom property containing message into ASPx Grid View. Now I want to show a message either through an alert box or a message through a web control such as label or literal control.
In the template field I will Place a label or some controls, So that it’s very easy to access those controls in the code behind by using Find Control method. Item Template is the content to display for the items in the Template Field.
Suppose if we are trying to hide primary key of our table, there is actually no need to hide. In the above Snippet you are seeing a label in Item Template that means whenever we are showing Grid View to the user Label will be visible to the user.
I am trying to display an error message in the edit section of a ASPx Grid View when a user has tried to submit invalid data.
We will use Template Field, whenever we want to define some custom control in the data bound controls like Grid View, Data Grid or Data Repeater.
If he clicks edit (or) in the edit mode he can be able to see the Textbox.
There could be an error on the serverside and the clientside is not updated since it's using a callback.
Both the master and detail gridviews have link buttons for edit and add new activities. If I used the same code in the button click event of a button on the page, then it works fine.