Editing and updating in gridview in asp net Free insant message sex dating site
NET Developer's Cookbook Sample Chapters Book Reviews Community Regular Expressions keeps an indicator in string form for a type of information within a template field i.e.whether a template field has information of "Command" or "String" so that later data retrieval and data binding of that particular child control will be made accordingly.To avoid this we need to keep the property Read Only as false, Then in the edit mode nothing will happenes. The reason I use Template Field instead of Bound Field is that, it is very easy to grab those controls in the codebehind if we user labels or textboxes.In case of the bound field’s we need to check what column it is and need to use index of that cloumn, which is little hard and even in future if we change the column order If you see the Last Template Field part in the above code, I am using the link buttons for edit, update, delete and cancel.Listing 4 is not a Command it means we have to instantiate it with a label as in Grid View's normal mode when each cell text of Grid View's rows is displayed in label.Therefore, by default, control is instantiated with Label and is added into the Container.
By default all the boundfields will be trasferred as Textboxes in Edit Mode.
We will always open modal popup from code behind so we can execute all the necessary methods.
First of all we will create a table Users CREATE TABLE [Users]( [User ID] [int] IDENTITY(100,1) NOT NULL, [User Name] [varchar](50) NULL, [Address] [varchar](100) NULL, [City] [varchar](50) NULL, [State] [varchar](50) NULL, CONSTRAINT [PK_Users] PRIMARY KEY ([User ID]) ) Some points which you need to understand, in Modal Popup Extender we used Behavior ID which will help to find the modal popup and close it.
Add New User button click event handler, which clear all the control in modal popup and show the it #region[Add New User record into database] public bool Add New User(User Entity user) #region[Update User record into database] public bool Update User(User Entity user) #endregion #region[Delete User record from database] public bool Delete User By ID(Int32 user Id) #endregion #region[Get User to show in popup for edit] public User Entity Get User By ID(Int32 user ID) #endregion Save Button click event handler to save record into database, nothing is complicated, as we already seen at the time of adding new user we are setting userid to 0 means need to create a user otherwise update user.
Use the same modal popup extender which we use for adding new users and same html will be used, when we go for updating the record we will keep Id in hidden field and pass to update the rocord.