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Asked: 2026-05-11T10:44:51+00:00

I am developing a Windows mobile application. How can I show only two columns

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I am developing a Windows mobile application. How can I show only two columns of the twelve in my datatable in the grid?.

Also, is it possible to delete rows in the Windows Mobile datagrid?

Please provide sample code.

Hi StartClass0830,

Thanks for your reply, i don’t want remove the columns in my grid, Let’s say In the windows mobile application the dtNewOrder table contains 11 columns i need to display the certain fields from dtNewOrder to the datagrid.

And another question is the datagrid contains 10 rows how i am deleting the certain rows in the grid.

Please give me sample code; I have been struggling with this problem for a couple of days.

Here is what I have:

Imports System.Data Imports System.Text Imports System.IO Imports System.Data.SqlServerCe   Dim dtCustomerName As DataTable  Dim dtNewOrder As DataTable  Dim _objDataAccess As New DataAccess  Private Sub NewOrder_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load          dtNewOrder = CreateNewOrderDataTable()  End Sub   Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)  Handles btnAdd.Click      AddNewOrderMember(dtNewOrder) End Sub   Private Sub AddNewOrderMember(ByVal dtNewOrder As DataTable)         Try             Dim NewOrderMemberRow As DataRow = dtNewOrder.NewRow()             NewOrderMemberRow('OrderID') = System.Guid.NewGuid()             NewOrderMemberRow('SalesPersonID') = '123'             NewOrderMemberRow('CustomerGroupID') = ddlCutomerGroup.SelectedValue.ToString()             NewOrderMemberRow('CustomerID') = ddlCustomerName.SelectedValue.ToString()             NewOrderMemberRow('CustomerItemCode') = '123'             NewOrderMemberRow('Category') = 'Dummy Category'             'NewOrderMemberRow('Description') = 'Dummy Des'             NewOrderMemberRow('OrderUnit') = 'Each'             NewOrderMemberRow('OrderQuantity') = txtOrderQuantity.Text             NewOrderMemberRow('UnitPrice') = '123'             NewOrderMemberRow('TotalAmount') = '30000'             dtNewOrder.Rows.Add(NewOrderMemberRow)             dtNewOrder.AcceptChanges()              If dtNewOrder.Rows.Count > 0 Then                 dgNewOrder.DataSource = dtNewOrder             End If          Catch ex As Exception             MessageBox.Show(ex.Message, 'Mobile Retail Merchandising', MessageBoxButtons.OK, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1)         End Try     End Sub   Private Function CreateNewOrderDataTable() As DataTable          dtNewOrder = New DataTable('NewOrder')         Try             dtNewOrder.Columns.Add(New DataColumn('OrderID', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('SalesPersonID', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('CustomerGroupID', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('CustomerID', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('CustomerItemCode', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('Category', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('Description', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('OrderUnit', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('OrderQuantity', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('UnitPrice', Type.GetType('System.String')))             dtNewOrder.Columns.Add(New DataColumn('TotalAmount', Type.GetType('System.String')))              Dim PrimaryKeyColumns() As DataColumn = New DataColumn(1) {}             PrimaryKeyColumns(0) = dtNewOrder.Columns('OrderID')             dtNewOrder.PrimaryKey = PrimaryKeyColumns             Return dtNewOrder         Catch ex As Exception             MessageBox.Show(ex.Message, 'Mobile Retail Merchandising', MessageBoxButtons.OK, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1)             Return dtNewOrder         End Try     End Function

Thanks brite

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1 Answer

  1. Your question is somewhat problematic. You mentioned 2 columns in your grid and 12 columns in your datatable and you want to delete ROWS!

    I take it you mean COLUMNS instead of ROWS. When you do data-binding to your grid, you can specify which columns in the 12 you want. There is no need to delete columns.

    In the event, you REALLY mean ROWS, you can modify your SQL or LINQ queries to have those unwanted ROWS removed.

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