Hi all,
I've got a weird problem and i can't figure out what's happening :(
On my web page, i've a webdatagrid with 2 columns (Sequence and ItemCode). Sequence is readonly.
The DataKeyFields is the sequence field.
Under the WebDataGrid, i've 2 asp buttons (add and delete).
Here is a sample of the Page_Load method :
if (!IsPostBack)
{
PreOrderItems = new List<PreOrderItem>();
WebDataGrid_CreateOrder.DataSource = PreOrderItems;
WebDataGrid_CreateOrder.DataBind();
}
else
GetData();
WebDataGrid_CreateOrder.ClearDataSource();
WebDataGrid_CreateOrder.Rows.Clear();
When i click on the add button, i'm adding one element in my PreOrderItems property which is a IEnumerable<Item> -> PreOrderItems.Add(new Item { Sequence = 1, ItemCode = "Test"});
So when the page is reloaded, the PreOrderItems is binded to the grid with the new item.
Now, when i click on the delete button, i'm removing this element from my PreOrderItems property and then then the PreOrderItems is binded to the grid when the page_load occurs.
But after the event of my delete button i got the following exception :
Requested record cannot be found by key
[MissingRecordException: Requested record cannot be found by key.] Infragistics.Web.UI.GridControls.EditingCore.OnAction(String actionType, Object id, Object value, Object tag) +836 Infragistics.Web.UI.GridControls.GridBehavior.Infragistics.Web.UI.GridControls.IGridBehavior.OnAction(String actionType, Object id, Object value, Object tag) +48 Infragistics.Web.UI.GridControls.GridBot.LoadAdditionalClientState(Object state) +670 Infragistics.Web.UI.Framework.RunBot.HandleRaisePostDataChangedEvent() +202 Infragistics.Web.UI.GridControls.GridBot.HandleRaisePostDataChangedEvent() +73 Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.RaisePostDataChangedEvent() +34 System.Web.UI.Page.RaiseChangedEvents() +165 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1485
It seems that the grid is keeping a reference to my previous databind and it cannot find the deleted item ???
I thought that a simple databind with a new list could be possible but it's not.
Am i doing something wrong ?
Thank you for your help.
Btw, it works on Google Chrome but not on Internet Explorer 8.0
I found a solution.
If i'm removing the current row (from a javascript function) it works and my datasource is up-to-date.
Hello and how do you do that ?
thanks for help !
I've got a button like this :
<asp:Button Style="left: 95px; position: absolute; top: 585px;" ID="Button_Delete" Text="Delete" runat="server" OnClientClick="Button_Delete_OnClick(this)" />
And here is the JavaScript function :
function Button_Delete_OnClick(button) {
var grid = $find('<%=WebDataGrid_CreateOrder.ClientID%>');
var rows = grid.get_behaviors().get_selection().get_selectedRows();
if (rows != null && rows._rows._element.innerHTML != "" && rows.getItem(0) != null) {
var sequence = rows.getItem(0).get_cell(0).get_value();
gridRows = grid.get_rows();
gridRows.remove(rows.getItem(0));