October 14, 2008 06:57am pdt

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	[x] Attachment Details

using LINQ to perform an UPDATE on a single field

[x]

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8.2

Zones: Visual Studio, Microsoft Visual C#.Net, Microsoft Development

hi -- I'm new to LINQ and I'm trying to find a way of performing an update to a record without having to update each field in the record. The caveat is I'm using a datagrid view. I can correctly identify the cell that changes and query to return a var query with that existing record. what I don't know is how to match the field in the record with either the column index or the column header name (ie the name of the field) so that I can then equate the new value from the cell with the value in the field/record.
thanks.
Attached is the method that's called when the cell updates.
Jim

         
           
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             private void vendors_DGV_CellValueChanged(object sender, DataGridViewCellEventArgs e)
        {
            
            
            
           int column = vendors_DGV.CurrentCellAddress.X;
            int row = vendors_DGV.CurrentCellAddress.Y;
            string fieldName = vendors_DGV.Columns[column].HeaderText;
          
            if (vendors_DGV.Rows[row].Cells[0].Value == null) { return; }
 
            string companyName = vendors_DGV.Rows[row].Cells[0].Value.ToString();
 
            var updateV = from vend in vendors where vend.CompanyName == companyName select vend;
 
           
           
            
            MainForm.dc.SubmitChanges();
        }
           
         

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