Updating an access file using c

Note: The Tables member of Data Set represents all Data Table objects attached to a Data Set. Adding a Data Row to a Data Table In this example, I'll show you how to add edit, and remove, data from the Northwind database.

After that I called the Data Adapter's Update method to save the changes to the database table. So, create a console application in Visual Studio using C# and add a JSON file named "user.json".Add the following line of code inside the file so that we can perform CRUD operation on this.Therefore, this JSON file contains user information like user id, name, address, experiences etc.The next code will show you the process to selecting user data, updating the existing data, inserting the new experience, and deleting the user experience. private string json File = @"C:\Users\mk9\Documents\visual studio 2015\Projects\Json Add And Update\Json Add And Update\user.json"; Before you proceed further, you need to add reference for Newtonsoft.

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Matt What you might have to do here is create a temporary file, which is a copy of the file and change this file. Private Sub Update Line() On Error Go To Update Err Dim str File As String Dim str Tmp File As String Dim str Line As String str File = "C:\File Name.txt" str Tmp File = "C:\File Name.tmp" If (Dir(str Tmp File) "") Then ' tmp file exist Kill str Tmp File ' delete the file End If Open str File For Input As #1 Open str Tmp File For Output As #2 ' copy until the line you want Do While (Not EOF(1)) Input #1, str Line If (str Line = " "") Then ' tmp file exist Kill str File ' delete the original file ' rename the tmp file as original file Name str Tmp File As str File End If Exit Sub Update Err: Msg Box "Error updating the file." & vb Cr Lf & Err.

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