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RadGrid not refreshing

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Grid

This is a migrated thread and some comments may be shown as answers.

Sean asked on 31 Jul 2008, 09:02 PM

Ok,

I have a grid I am updating from a RadWindow. The user clicks SAVE and the data is sent to the database. the window closes and calls the grid refresh method.

All works great. I look at the new data getting pulled during the NeedDataSource event and it is indeed correct.

However, the page never updates with the new data. The grid is defintely rebound, as the Item_Created event fires.. but why doesn't the grid show the refresh data? Am I missing something? Below is my code.

Thanks!

//ASPX PAGE
<telerik:RadGrid ID="radData" runat="server" AutoGenerateColumns="False" AllowSorting="True" OnItemCreated="radData_ItemCreated" BorderStyle="None" Skin="Telerik" GridLines="None" OnNeedDataSource="radData_NeedDataSource" Width="985px" Height="800px">...

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
<script type="text/javascript">

//JAVASCRIPT
function ShowForm(site, form, rowIndex) {
if (form == 'refViewer') {
var grid = $find("<%= radData.ClientID %>");
var MasterTable = grid.get_masterTableView();
var row = MasterTable.get_dataItems()[rowIndex];
row.selected = true;
}

window.radopen(site, form);

return false;
}

function refreshGrid(arg) {
$find("<%=RadAjaxManager1.ClientID%>").ajaxRequestWithTarget("<%=RadAjaxManager1.ClientID%>", "Rebind");
}
</script>
</telerik:RadCodeBlock>

//CODE BEHIND....
protected void radData_NeedDataSource(object source, GridNeedDataSourceEventArgs e){
bindData();

private

void bindData()
{
var ds = getDs();
dv = new DataView {Table = ds.Tables[0]};

// grab some query strings for filtering
var clcFilter = Request.QueryString["clcfilter"];
var filter = Request.QueryString["filter"];
var bc = Request.QueryString["bc"];
var keyword = Request.QueryString["k"];

// if filter on, do some checks
if (filter != null)
dv.RowFilter = getFilter(filter);
if (clcFilter != null)
dv.RowFilter = bc != null ? getCLCFilter(clcFilter) : getCLCFilter(clcFilter);

// check for keyword search
if (!string.IsNullOrEmpty(keyword))
dv.RowFilter = getSearch(keyword);

radData.DataSource = dv;
fillEntities();
}

protected void radData_ItemCreated(object sender, GridItemEventArgs e)
{
    if (!(e.Item is GridDataItem)) return;
    var dr = (DataRowView) e.Item.DataItem;
    var temp = dr["uniStatus"];
    var editLink = e.Item.FindControl("RefLink") as HyperLink;
    if (editLink == null) return;

    editLink.Text = dr["EntityName"].ToString();
    editLink.Attributes["href"] = "#";
    var site = "Ref.aspx?entityid=" + dr["EntityID"];
    editLink.Attributes["onclick"] = string.Format("return ShowForm('{0}','{1}', '{2}');", site,
"refViewer", e.Item.ItemIndex);
}

Sean

6 Answers, 1 is accepted

answered on 07 Aug 2008, 06:07 PM

I have set up everything exactly like the given project. The only difference is that I do not use a detailsview to wrap the contents. Because I am trying to quickly modify a very old app, I don't have time to re-tool the entire thing. I am just updating it to be used by a different team than originally written and wanted to incorporate Telerik controls. Eventually, if they continue to use it, I will be able to try it your way, but until then...

Instead of a details view, I load the page and have a RadToolBar as such:

    
                <telerik:RadToolbar ID="RadToolbar1" runat="server" style="z-index: 103;"     
        
             OnButtonClick="RadToolbar1_OnClick">    
        
                <Items>    
        
                    <telerik:RadToolbarButton runat="server" Text="Save and Close" CommandName="Save"/>    
        
                </Items>    
        
            </telerik:RadToolbar>

here is the toolbar OnClick code:

    
             protected void RadToolbar1_OnClick(object sender, RadToolBarEventArgs e)  
        
                    {  
        
                        var button = e.Item as RadToolBarButton;  
        
                        if (button != null)  
        
                            switch (button.CommandName)  
        
                            {  
        
                                case "Save":  
        
                                    {  
        
                                        UpdateData(...VALUES...);  
        
                                        ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CloseAndRebind();", true);  
        
                                        break;  
        
                                    }  
        
                            }  
        
                    }

I want to reiterate: EVERYTHING works as planned. All methods are called, all data is updated in the database. The only thing not working is the actual grid refresh.

One thing: In the REBIND call by the AjaxManager, I noticed that the NeedDataSource is called, followed by the AjaxRebind... This rebound the RadGrid twise so I removed the radData.Rebind() call.

Anyway, what is most confusing is the fact that the data returned during rebinding is all correct. The only thing wrong is that the actual page is not refreshed... I have had to resort to a manual Response.Redirect call in the RadAjaxManager1_AjaxRequest.

VERY ugly and VERY baffling.

Sean

Accepted