CheckPara is my OnDataBinding procedure SqlDataSource1 is ObjectDataSource (it's only confusing name)
Language is Nemerle, but if you know C# you can read it easy
protected virtual CheckPara(_ : object, _ : System.EventArgs) : void
{
foreach(x is Parameter in SqlDataSource1.SelectParameters)
when(x.DefaultValue=="") //Cancel binding
}
so how can I cancel binding when there is not fully configurated ObjectDataSource ? Or... how can I run binding only when I done with all parameters ?
Okay after some further investigation it seems that this does work as expected when i run it in a standalone page, however we are using this script, and it appears that it is causing a conflict..
That script moves any href='javascript:... into the click handler, im guessing that the order the handlers are assigned may have something to do with it...
I tried binding a ListBox to an Object Data Source, but I can’t get the field to show up in the Data Source Configuration Wizzard for the ListBox. I got it working programatically populating the listbox using the DataReader but I’d like to be able to use the Object Data Source (Unless there are compelling reasons not to that I haven’t heard of yet.)
This has been covered a couple of times, without a suitable answer:[URL]
I have created a custom paging data class that is used with an ObjectDataSource. In intial tests, I found it was performing worse than my old SqlDataSource code. Whilst investigating, I found that for every page load, the ObjectDataSource is being created and binding twice.
Investigating the links above led me to believe this could be a bug (or unexplained behavior) in regards to changing my GridView's column visibility in the OnDataBound event like so:
I use this event to customize the display of certain fields, as well as hide columns that are not pplicable during some search types. When I disable the event, the ODS stops binding twice. I can't really think of a way to get around this behavior. Has anyone else see this issue or developed a work around?
I have an ODS control populating a Telerik grid. The ODS definition is pretty simple. It's set to call a method on a static class that has one parameter (entityID). I set this parameter in the OnSelecting event. When I test this, the world is a happy place and all is fine.
Then, I pass a query string to the page (which sets various unrelated values for the page, we'll say parameters X and Y). The page call's Telerik's radgrid.Rebind() event. When this happens, an error is throw from the ODS saying that the underlying method (the static data procedure) does not support parameters X and Y.
So, why is ODS thinking it should be using any querystring values at all when I have explicitly set the entityID parameter (of type Asp:Parameter)? How do I stop this from happening?
The Html:
[Code]....
The OnSelecting:
[Code]....
I see this odsList_OnSelecting being hit and the inspection of e.InputParameters only contains my expected single entry.
I have an ObjectDataSource that is bound to a GridView. The object accepts a parameter from a TextBox. The problem I have is when I use a CustomerValidator with a ServerValidate event, the ObjectDataSource would still attempt to perform a DataBind despite the fact the the customer validator has returned false. The following is the code in the ASPX page.
protected void DateValidator_ServerValidate(object source, ServerValidateEventArgs args) { /Ensure that the entered data is a date. string input = args.Value; DateTime result; args.IsValid = DateTime.TryParse(input.TrimEnd(), out result); }
How do I stop the ObjectDataSource from data binding when validation has failed?
I am trying to bind a DataTable into a ObjectDataSource. This ObjectDataSource data will be used to bind into my LocalReport in ReportViewer. I have already successfully binded my data into the DataTable. My problem now is how do i bind the data in my DataTable into the ObjectDataSource so that it can be used in my report?
how can i access the my sqldatasource selected datasource for modification and adding for example new datacolumns before binding??where is the best place to perform these modifications ?i guess SqlDataSource1_Selected is the right place, but i don't know how ?
I have a gridview databound to an objectdatasource. Everything worked great until I changed 2 columns from asp:BoundField to asp:TemplateField. These are the UPC column and the Part column. I wanted to show a link button for each of these fields that take the user to another page. Now asp.net expects these two fields to be parameters on the update store procedure. Why is this? How do I get it to not assume these columns need to be passed to the store procedure?
I'm trying to bind both GridView and DetailsView to a single ObjectDataSource declaratively (in markup). I'm getting the error read as below when I tried to run it.
"The DataSourceID of 'DetailsView1' must be the ID of a control of type IDataSource. A control with ID 'ReservationsDataSource' could not be found."
It works when I bind GridView and DetailsView each seperately to my ObjectDataSource. Is it I can't bind two pagable data web controls to a single datasource?? or there is a trick needed to be done for this to work.
FYI, I'm trying to create a Master/DetailsView of my data. DetailsView of my application should show the record selected in GridView and it should be editable.
I am using a LINQ to SQL data source for a ListView and perform a validation check in the Listview ItemUpdating event:
[Code]....
This works great and keeps the user from updating the record with invalid data.However, when I hit cancel after this operation, it saves the text in the box rather than cancelling the operation. Here's my code for the update button:
[Code]....
Update Function:
[Code]....
I do not handle the cancel button event, as the cancel operation has worked fine... unless someone enters incorrect information and e.Cancel is set to true.What am I doing wrong? Is it the mixture of using the LINQ Datasource and doing my own updating?
I have a text box that I am reading mulitple employee names into. If the user enters a name that does not belong to an employee I want to cancel the item_updating function. Here is my code:
Dim RECIPIENTS() As String RECIPIENTS = RLIST.Split(";") Dim NAME As String [code]...
I'm doing research on framework development for my company. SInce I will be developing a framework I can not simply declaire all my control in the code in front. Receiently I've been having trouble binding the controls from my ListView to my ObjectData Source. Basicly the properties in my DataObjectTypeName are not populated when the ObjectDataSource "Update" command is thrown. I recieve no error, I just get null values. All I need is an equivalent to this statement for code-behind ...
<%# Bind("AbstractText") %>This would solve all my issues. Ofcouse I will most likely need to bind the control's ID somewhere but that is not an issue. How do I Bind a control to a property in my DataObjectTypeName from the code-behind?
I want to bind an ObjectDataSource to a property in my asp page and I want to do it in the page's aspx code, not in code-behind. I've already done it in code-behind, as follows:
[Code]....
I'd prefer to get rid of the ugly code-behind and just do this in mark-up. Something like [Code]....
This gives me a run-time error: Cannot create an object of type 'System.Object' from its string representation 'SelectedBook' for the 'DataSource' property.Is there a way of doing this declaratively and not in code-behind? Further, what if what I want is to actually use a child property of the property in question? For example, if my Book object has a ReaderComments collection, can I databind to it decaratively in the aspx mark-up?
I have a Gridview in the markup and I add an ObjectDataSource to the mark up which will be the gridviews data source. Is this a redundant way of binding controls? I believe using this method is good for small sites with little customisation etc. but, for large sites (multi lingual, hundreds of pages etc) I have been taught to create the controls in the mark up or code behind, then bind the controls on PreRender in the code behind. My new boss thinks this method is old school and the current way of using an objectdatasource in the mark up is the best way to do it.
What's the difference between binding for example a column called ("Name") in both cases ? and is there's any performance difference ?1- Assigning the data in the mark-up
2- defining a control object for every control inside the repeater ItemTemplate and find it and then assign the data in the column "Name" to ite.Item.FindControl("Name_Lbl")
I have a web page (.aspx) that calls a third party web service to get some data. It usually takes couple of seconds to get the response back, and then the rest of the page will load. Occasionally the call gets stuck either due to the web service is down, or internet connection, etc., the page just hang there and will not load.
My questions is:
1) Is there a way to abort/cancel the web service call after a set amount of time?
2) Is it even possible to verify the status of the web service before calling it?
i am doing this in my client side to make my page load and update a message that is inside and update panel, i associate the keydown event of a textbox control to this javascript:
[Code]....
but the problem with that is if the user type fast the page will do a lot of postback, and i just wanna make the last one, how can i afford that??
