Thank you for your help in this thread, it cost me some days to think about but I know now what you mean with the cycle.
I removed the databinding from the CreateChildControls and it is only called at the end of the requirering events. The attaching of the events will now be performed in the OnInit. As we say normally in dutch: It now walks like a sun! ( It works smoothly as it should be! ) Thank you! I even get some more information for composite controls from your links! On 4 mei, 21:46, Cerebrus <[email protected]> wrote: > What I am trying to imply is that attaching eventhandlers in the > DataBind() method is not the correct way to do it. (and nor is doing > it in CreateChildControls()). > > I would probably try attaching the eventhandlers in the OnInit > override. If that doesn't work, I would expose the GridView's events > as top level events of the Composite control using the Event bubbling > method. For more information, refer to Dino Esposito's article here: > <http://msdn.microsoft.com/en-us/library/aa479016.aspx> > > and MSDN: <http://msdn.microsoft.com/en-us/library/aa719734(VS. > 71).aspx> > > Event bubbling sample: <http://msdn.microsoft.com/en-us/library/ > aa720044(VS.71).aspx> > > On May 4, 6:50 pm, Cezus <[email protected]> wrote: > > > It is possible to attach those in the CreateChildControls but it will > > have the same result, thats why I have chosen to place it in the > > BindData(). With every postback those eventhandlers have to be > > reattached. > > > Further, there is no cycle or an endless loop. After reattaching the > > eventhandlers it will not execute the eventhandlers again. This have > > something to do with the page lifecycle, it will execute the events > > just once. Ive looked on internet but there is almost no results on > > google where the update button executes the rowediting event instead > > of the rowupdating event. > > > For more info, there is an demo on > > >http://test.cezus.nl > > > click in the demo on edit and then on update and you see there is no > > change in the page because it executes the rowupdating event again. > > > On 4 mei, 12:45, Cerebrus <[email protected]> wrote: > > > > I don't get it at all... Why would you attach your eventhandlers in > > > the BindData() method when you call this method from the Eventhandlers > > > themselves ? > > > > Don't you see a cycle here ? > > > > On May 4, 2:21 pm, Cezus <[email protected]> wrote: > > > > > Hello, > > > > > I have a problem in my composite control. In this composite control I > > > > create a GridView in one of the TableCells of a Table control. This > > > > GridView has multiple events on it, such as rowediting event, > > > > rowupdating event, rowcancelingedit event. > > > > > image:http://www.cezus.nl/GridView.JPG > > > > > [code] > > > > private void BindData() > > > > { > > > > _gvCategories = (GridView)this.FindControl > > > > ("gvCategories"); > > > > _dtCategories = (DataTable)HttpContext.Current.Session > > > > ["dtCategories"]; > > > > > _gvCategories.DataSource = _dtCategories; > > > > _gvCategories.AutoGenerateDeleteButton = true; > > > > _gvCategories.AutoGenerateEditButton = true; > > > > _gvCategories.RowEditing += new GridViewEditEventHandler > > > > (_gvCategories_RowEditing); > > > > _gvCategories.RowUpdating += new GridViewUpdateEventHandler > > > > (_gvCategories_RowUpdating); > > > > _gvCategories.RowDeleting += new GridViewDeleteEventHandler > > > > (_gvCategories_RowDeleting); > > > > _gvCategories.RowCreated += new GridViewRowEventHandler > > > > (_gvCategories_RowCreated); > > > > _gvCategories.RowCancelingEdit += new > > > > GridViewCancelEditEventHandler(_gvCategories_RowCancelingEdit); > > > > > _gvCategories.DataBind(); > > > > } > > > > > void _gvCategories_RowEditing(object sender, > > > > GridViewEditEventArgs e) > > > > { > > > > _gvCategories = (GridView)sender; > > > > _gvCategories.EditIndex = e.NewEditIndex; > > > > BindData(); > > > > } > > > > > void _gvCategories_RowUpdating(object sender, > > > > GridViewUpdateEventArgs e) > > > > { > > > > _gvCategories = (GridView)sender; > > > > _dtCategories = (DataTable)HttpContext.Current.Session > > > > ["dtCategories"]; > > > > GridViewRow row = _gvCategories.Rows[e.RowIndex]; > > > > > foreach (DataRow dr in _dtCategories.Rows) > > > > { > > > > if (dr.RowState != DataRowState.Deleted) > > > > { > > > > if (Convert.ToInt32(dr["drID"]) == Convert.ToInt32 > > > > (((TextBox)(row.Cells[3].Controls[0])).Text)) > > > > { > > > > dr["ID"] = ((TextBox)(row.Cells[1].Controls > > > > [0])).Text; > > > > dr["Categorie"] = ((TextBox)(row.Cells > > > > [2].Controls[0])).Text; > > > > } > > > > } > > > > } > > > > _gvCategories.EditIndex = -1; > > > > HttpContext.Current.Session["dtCategories"] = > > > > _dtCategories; > > > > > BindData(); > > > > > Button _btnNieuw = (Button)this.FindControl("btnNieuw"); > > > > _btnNieuw.Enabled = true; > > > > > } > > > > [/code] > > > > > If I press on the 'edit' button in the GridView it goes to the > > > > rowediting event. If I press after that on the 'update' button it goes > > > > again through the rowediting event instead of going through the > > > > rowupdating event. > > > > > I am struggling for 2 days with this, I hope somebody knows a > > > > solution. > > > > > With Kind Regards, > > > > > Cees van Altena- Hide quoted text - > > > - Show quoted text -
