ASPxGridview - 'interrupting' row insert events

Hoping someone can point me in the right direction

Using DevExpress ASPxGridView and the Edit form.

I need to 'interrupt' the RowInserting events to warn the user if there's already a record matching their information and allow them to continue or cancel.

I've added the check (and a cancel) to the OnRowInserting event and am using customJSProperties to trigger the popup on the callback.

But I'm stuck on how to get the popups 'yes' button to r开发者_如何学JAVAesume (or restart) the Row Insert.

Is there a way of triggering the editform update event again from client side code?

Or do I need a completely different approach?

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First of all, I found this article Use "yes" / "no" in edit mode for boolean value

Second of all, I hope your all rows has a unique value like ID. If so, I sugget a way like this;

• Use OnRowInserting function of ASPxGridview. (Find here code examples etc.)
• Check your inserting ID is already in your data store or not. (With running a query)
• If in your data store or not, use XtraMessageBox like;

XtraMessageBox.Show(“Content”, “Title”, MessageBoxButtons.YesNo);

before that, add DevExpress.XtraEditors namespace. Then you can use it like;

DialogResult myDialogResult;
myDialogResult = XtraMessageBox.Show("Content", "Title", MessageBoxButtons.YesNo);

if (myDialogResult == DialogResult.Yes)
{
    //yes was clicked
}

if (myDialogResult == DialogResult.No)
{
    //no was clicked
}

Hope it gives you an idea. And If you have Devexpress Licence, you can ask in Devexpress Support. They are really quick and helpful.

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You can solve this with custom HttpHandler. Something like this:

1. press Save button on your edit form
2. Save initiates httphandler call (from javascript) with data needed for validation (tablename, id). With jquery you can call http handler like this:
3. if handler returns true continue with save, otherwise show alert with OK/Cancel
4. if user chooses OK continue with Save

Javascript call with http handler would look like this:

$.ajax({
    async: false,
    cache: false,
    url: 'YourHttpHandler.ashx',
    data: { tableName: "your table name", record_id: your_id },
    success:
        function (data, textStatus, xmlHttpRequest)
        {
            if(data.result==true) 
                if(confirm('Continue?')) 
                {
                    // continue with save 
                }
        }
});