Editing the Grid View control can be an incredibly easy feature to add for certain database tables, especially those who have no foreign key associated and can easily be edited through the use of a standard Text Box web control as shown in the figure below: Before we start examining the ASP.
NET Grid View markup and associated code lets first enumerate the important code pieces of this tutorial.
Gridview rowupdating in c net
When I Filter the data using dropdown selected Index Changed event the gridview shall load data based on what is searched.
I need to do the updating operation on what row is clicked.
This is basically so you can cancel the update operation.
To get what you've type in I think you need to get the new values (the Dictionary e. In your case you can use it something like this (assuming name, phone and email are what they're called in your gridview): NOTE: If you're simply using this to get the values typed in to update your database then you're better of binding the datagrid and use the value after that to ensure you definitely have the same values in the datagrid as to what you put into the database.
I have worked through most of the issues like dynamically creating the update, delete statements etc except for one problem I'm having in retrieving the cell value while in the rowupdating event. To String() is always an error so I am unable to get the value to plug into the dynamic update statement. ") End If End Try Row Updating Dim row Index As Integer = e. Rows(row Index) sql = sql & 'Field A' sql = sql & "=" & Grid View1. C If there is no other way; I suppose I could define the fields dynamically and use the findcontrol to obtain the value during update mode; but I've not had any success dynamically defining the field names or labels.
I can retrieve it every where else; but not in this event. Cxt is always empty if your on the row being updated. If you on a different row; no problem it will return the value. egrated Security=SSPI; Initial Catalog=Test") connection. Open() Dim command2 As Sql Command = New Sql Command("Select * from Keys where Table Name='" & "Country_Table" & "'") Dim reader As Data. Sql Data Read & "] " End If Try Catch exc As Exception End Try begin = 1 End While sql = sql & " as ID, * from " & "Country_Table" reader. Data Bind() Catch ex As Exception Throw ex Finally If Grid View1. Thanks I actually haven't put it in a page load event since ultimately the work flow will require the selection of a table ; currently I have the grid bind in a button like below.
A datakey represents the primary key field or field of a record that can uniquely identify it in a data-bound control. Row Index represents the index of the particular row.
Many a times in our applications we use primary keys to get control of the particular record in the gridview.
" Select Command="SELECT a.tenantcode, a.name, a.fixedrate, a.percentrate, a.percentage, b.locationd, c.status FROM TENANTNEW AS a INNER JOIN LOCATION AS b ON a.
For example, the current data is: name: Blake, phone: 123-234-3456, email: [email protected], contact Id: 22 I type in new data: name: John, phone: 555-555-5555, email: [email protected], contact Id: 22 Data that ends up in the database: name: Blake, phone: 123-234-3456, email: [email protected], contact Id: 22 When you raise the Row Updating event your basically getting the values BEFORE the Grid View updates the row.
So, I checked the page load event, and found out that I have a code which rebinds the grid when it is not post back since the update link button will trigger postback.