This example illustrates how you can export worksheet cell range to a System.Data.DataTable object.
The following steps are required:
1) Add a reference to the DevExpress.Docs.v13.2.dll assembly to your project containing the SpreadsheetControl. Note that distribution of this assembly requires a license to the DevExpress Document Server or the DevExpress Universal Subscription.
2) Create the DevExpress.Spreadsheet.Export.DataTableExporter instance using the DevExpress.Spreadsheet.Worksheet.CreateDataTableExporter method.
3) Call the Export method of the DataTableExporter.
You can create an empty DataTable by using the CreateDataTable method of the DataTableExporter. The column names are obtained from headings of the cell range, and the column data types are extracted from cell data types of the first row of a range.
The DataTableExporter contains various options that enables you to specify how cell data are processed before storing them in a DataTable.
Question Comments
Added By: Juan Capiau - D at: 7/29/2014 6:55:38 AM
I'm trying this example and the 'Export Worksheet Table Using Exporter Options' throws an error (Index was out of range) on Sub barButtonItemUseExporterOptions_ItemClick, line 'Dim range As Range = worksheet.Tables(0).Range'. i've tried multiple files, none work. If i select a range and export that (the 'Export Selected Range to Data Table') there is no problem. How can I fix this ?
System.ArgumentOutOfRangeException was unhandled
HResult=-2146233086
Message=Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
ParamName=index
Source=mscorlib
StackTrace:
at System.ThrowHelper.ThrowArgumentOutOfRangeException()
at DevExpress.XtraSpreadsheet.API.Native.Implementation.NativeCollectionBase`3.get_Item(Int32 index)
at ExportToDataTableExample.Form1.barButtonItemUseExporterOptions_ItemClick(Object sender, ItemClickEventArgs e) in C:\Users\JCA\Documents\Samples\XtraSpreadSheet\14.1.5\E4997\ExportToDataTableExample\ExportToDataTableExample\Form1.vb:line 68
at DevExpress.XtraBars.BarItem.OnClick(BarItemLink link)
at DevExpress.XtraBars.BarBaseButtonItem.OnClick(BarItemLink link)
at DevExpress.XtraBars.BarButtonItem.OnClick(BarItemLink link)
at DevExpress.XtraBars.BarItemLink.OnLinkClick()
at DevExpress.XtraBars.BarButtonItemLink.OnLinkClick()
at DevExpress.XtraBars.BarItemLink.OnLinkAction(BarLinkAction action, Object actionArgs)
at DevExpress.XtraBars.BarButtonItemLink.OnLinkAction(BarLinkAction action, Object actionArgs)
at DevExpress.XtraBars.BarItemLink.OnLinkActionCore(BarLinkAction action, Object actionArgs)
at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.ClickLink(BarItemLink link)
at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.UnPressLink(BarItemLink link)
at DevExpress.XtraBars.Ribbon.Handler.BaseRibbonHandler.OnUnPressItem(DXMouseEventArgs e, RibbonHitInfo hitInfo)
at DevExpress.XtraBars.Ribbon.Handler.BaseRibbonHandler.OnUnPress(DXMouseEventArgs e, RibbonHitInfo hitInfo)
at DevExpress.XtraBars.Ribbon.Handler.BaseRibbonHandler.OnMouseUp(DXMouseEventArgs e)
at DevExpress.XtraBars.Ribbon.Handler.RibbonHandler.OnMouseUp(DXMouseEventArgs e)
at DevExpress.XtraBars.Ribbon.RibbonControl.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at DevExpress.Utils.Controls.ControlBase.WndProc(Message& m)
at DevExpress.XtraBars.Ribbon.RibbonControl.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at DevExpress.Utils.Win.Hook.ControlWndHook.CallWindowProc(IntPtr pPrevProc, IntPtr hWnd, Int32 message, IntPtr wParam, IntPtr lParam)
at DevExpress.Utils.Win.Hook.ControlWndHook.WindowProc(IntPtr hWnd, Int32 message, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at ExportToDataTableExample.Program.Main() in C:\Users\JCA\Documents\Samples\XtraSpreadSheet\14.1.5\E4997\ExportToDataTableExample\ExportToDataTableExample\Program.vb:line 45
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: