Updating Database using Datagrid in C#

Question

just working on the something lately need help i m again stuck here.... i m retrieving values from database using datagrid and i want to update the database using that simil

Answer 1

Well Abeer. there are really many ways to work with data and in a lot of times it is a developer preference to work one way or another. From your question, I can see that might be new to working with ADO.NET so I would suggest you do some reading on working with data in .NET (DataTables, DataSets, DataGrids, DataAdapters, Data Binding, ... etc)

I think (from my short experience) the simplest way to read and write data from and to data source is to use a DataAdapter to read the data into a dataset and then set the dataset as the datasource for a gridview where a user can edit. to write back the changes, just use the update method in the adapter. here is a sample code

DataSet ds;
OleDbDataAdapter dataAdapter;
void ReadData()
    {
        this.ds = new DataSet();
        string connString = "CONNICTION STRING GOES HERE";
        this.dataAdapter = new OleDbDataAdapter("QUERY GOES HERE", connString);
        this.dataAdapter.Fill(this.ds, "TABLE1");
        this.ds.AcceptChanges();
        //set the table as the datasource for the grid in order to show that data in the grid
        this.dataGridView1.DataSource = ds.DefaultViewManager;
    }

    void SaveData()
    {
        DataSet changes = this.ds.GetChanges();
        if (changes != null)
        {
            //Data has changes. 
            //use update method in the adapter. it should update your datasource
            int updatedRows = this.dataAdapter.Update(changes);
            this.ds.AcceptChanges();
        }
    }

see the following as it gives a longer sample about using DataGrid control

http://www.codeproject.com/Articles/9986/Using-the-DataGrid-Control

and for some intro on DataTable, DataSets and DataGrids see

http://www.codeproject.com/Articles/6179/A-Practical-Guide-to-NET-DataTables-DataSets-and-D