Start Updating excel using ado net

Updating excel using ado net

This tutorial covers: I assume that you already know the basics of ADO and SQL (if not, theres an ADO tutorial in Tutor's Corner).

Open() Line 53: Line 54: sql = "SELECT Product Code, Product Name FROM [Data$]" [Ole Db Exception (0x80004005): Unspecified error] System.

I don't understand where's wrong in above, but it showed error following: Line 50: str Conn = "Provider=Microsoft. OLEDB.4.0; Data Source=C:\Data.xls; Extended Properties=Excel 8.0; HDR=Yes;" Line 51: obj Conn = New Ole Db Connection(str Conn) Line 52: obj Conn.

ADO is also preferable for web applications since it is much more stable than server-side automation of Excel.

You can also use ADO from Excel VBA or in combination with Excel automation, to get data from other data sources and put it in Excel.

Specifically, my demos look at having a set of objects to export – for example, a set of Linq-to-Sql entity objects – and then crafting an Excel spreadsheet by enumerating those objects and adding applicable rows and columns to the spreadsheet.

Recently, I needed the ability to allow for more generic exports to Excel.

Creat e Non Pooled Connection(Db Connection Base owning Connection, Db Connection Pool Group pool Group) 26 System.

Get Co nnection(Db Connection Base owning Connection) 51 System.

Further reading: KB 257819: How To Use ADO with Excel Data from Visual Basic or VBA KB 278973: Excel ADO demonstrates how to use ADO to read and write data in Excel workbooks KB 303814: Excel ADOX demonstrates how to use ADOX to modify Excel workbooks Using ADO can be safer, faster and simpler than automation and unlike automation, it will work even if Excel is not installed on the computer.

ADO is faster than automation, because it runs in-process, as opposed to out-of-process automation.

You frequently need to modify existing rows of data in a table using the UPDATE statement. NETVisual Basic Tutorials Simple Login Tutorial - Visual Basic .