how to increase the number of row in a vb.net form?

Question

how to increase the number of row of a table in a form in vb.net when the number of row are controlled by the user using a textbox? anyone have any idea...

Syed Shanu · Answer

Yes you can do that. For example create a publi datatable and in form load create columns for the table like below DataTable dt = new DataTable(); private void Form1_Load(object sender EventArgs e) { dt.Columns.Add(No); dt.Columns.Add(Name); dt.Columns.Add(Phone); } In button Click event private void button1_Click(object sender EventArgs e) { int rowsCount=system.Convert.toInt32(Textbox1.Text.Trim()); dt.Clear(); dt.Rows.Clear(); for (int i = 1; i { DataRow row = dt.NewRow(); row[NO] = i.ToString(); for (int jval = 1; jval { row[Name] =; row[Phone] =; } dt.Rows.Add(row); } } Try this hope this will help you.

Manoj Bhoir · Answer

Hi Try this Code : Public Class Form1 Private mDataable As DataTable Private Sub Button1_Click(sender As Object  e As EventArgs ) Handles Button1.Click For mRow As Int16 = 1 To Val( Me .TextBox1.Text) Dim mNewRow As DataRow = mDataable.NewRow mNewRow( SerialNo ) =  mNewRow( FirstName ) =  mNewRow( MiddleName ) =  mNewRow( LastName ) =  mDataable.Rows.Add(mNewRow) Next Me .DataGridView1.DataSource = mDataable End Sub Private Sub Form1_Load(sender As Object  e As EventArgs ) Handles MyBase .Load mDataable = New DataTable mDataable.Columns.Add( SerialNo ) mDataable.Columns.Add( FirstName ) mDataable.Columns.Add( MiddleName ) mDataable.Columns.Add( LastName ) End Sub End Class Also find attahced Sample.

Govinda Rajulu Yemineni · Answer

Hi first daclare datatable globally and define structure for that table in form load event Dim dt As New DataTable in form load event dt.Columns.Add(No) dt.Columns.Add(Name) in button click event Dim rowcount As Integer = Integer.Parse(txtrowcount.Text) For i As Integer = 0 To rowcount Dim dr As DatatRow = dt.NewRow() dr(No) =  dr(Name) =  dt.Rows.Add(dr) Next

King Umar · Answer

yes sirsomething like that...do you have logic to do that ? or idea...

Syed Shanu · Answer

What table your are taling about do you mean you want to add empty row for datatable programaticly for example in textbox when i enter 5 and click button then need to create 5 empty row in Datatable?