How to import large excel file in datatable

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How to Import Large Excel file in Datatable in Vb.net

Excel Sheet Size will be 165 MB.

Excel File Having a More Than 9 Lakhs Records.

What I have tried:

VB.NET

Dim excelsheet As [String]() = New [String](dtsheet.Rows.Count - 1) {}

            Dim i As Integer = 0
            For Each row As DataRow In dtsheet.Rows
                excelsheet(i) = row("TABLE_NAME").ToString()
                Dim da As New OleDb.OleDbDataAdapter("Select * " + _
                                                 " From [" + excelsheet(i) + "]", strCon)
                da.Fill(ds)
                Exit For
                i += 1
            Next

Fill Dataset Some 5000 to 6000 rows but there are 9 lakhs Row in Excel.
Not Full File Read by OleDbDataAdapter.
give me a Solution.

i also use Sql Import facility, but it will not work.

Posted 10-Aug-16 0:47am

samir1286

Updated 4-Sep-17 18:47pm

Maciej Los

v4

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W∴ Balboos, GHB 10-Aug-16 7:11am

Dim excelsheet As [String]() = New [String](dtsheet.Rows.Count - 1) {}

Doesn't look like C# to me.

I'll be a little helpful: if your sheets are not well populated (i.e., no mixed columns of numbers in some rows and characters in others, then your import's going to be quite difficult and uncooperative as the data types will keep changing,

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Mehdi Gholam · Answer 1 · 2016-08-10T02:22:00

Solution 1

Try this instead : EPPlus-Create advanced Excel spreadsheets on the server - Home[^]

Posted 10-Aug-16 2:22am

Mehdi Gholam

Comments

Maciej Los 10-Aug-16 16:09pm

+5 for the link ;)

Mehdi Gholam 11-Aug-16 0:23am

Thanks Maciej!

Maciej Los · Answer 2 · 2016-08-10T10:34:00

To be up to the challenge, you have to follow below steps:

Connect to the Excel sheet using OleDbConnection[^]
Create OleDbCommand[^] to read the data using OleDbDataReader[^]
Load data into DataTable[^]
Disconnect with Excel sheet
Connect to the SQL database using SqlConnection[^]
Copy data into SQL table using SqlBulkCopy class[^]
Disconnect with Sql database

That's all! Try!

Note: Do not loop through the collection of rows in Excel sheet! That is the reason of your problems.