WebDropDown AutoPostBack Problem | Infragistics Forums

235

WebDropDown AutoPostBack Problem

Jim posted over 13 years ago

I can't figure out how to get the WebDropdown to autopostback ONLY when I have actually selected an item.

Using your own example shows the problem that I'm having. Please go to this page:

http://samples.infragistics.com/2009.1/WebFeatureBrowser/contents.aspx?showCode=True&t=WebDropDown/WebDropDownServerEvents.aspx~srcview.aspx?path=~srcview.aspx?path=WebDropDown/WebDropDownServerEvents.src

Now, click in the webDropDown, delete the text, and type just a 'B'. An autopostback happens, and says that I have selected "Berglunds snabbköp". Which is not the case - the webdropdown only has a 'B' in it.

I don't want a postback to happen until I either hit <enter> or click on a item. To further clarify my need, lets say that you actually wanted to select the second "B" item, which is "Blauer See Delikatessen". I want to be able to type "Bl" and not have a postback happen after the "B".

In my case, I'm setting EnableAutoFiltering="Client", which will filter the results. So, I want to be able to type a "B", and the result is filtered, BUT no postback happens yet, because I haven't selected anything yet. Then I type"L" (which filters, so "Blauer See Delikatessen", is now the first item - the item that I really want, so I now hit <enter>. This is when I want the autopostback to happen - because only now have I actually selected something. Up until now, I've only been typing.

Thanks,
Jim

45

Offline Joseph Pace posted over 8 years ago in reply to [Infragistics] David Young

I have version 14.2 installed. Is this fixed. I am having same issue?
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5

Michael Groß posted over 9 years ago in reply to Clayton

2015 and the Problem still remains! Seems jdresser did the right Thing...
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Offline Clayton posted over 9 years ago in reply to [Infragistics] David Young

I am using Infragistics 14.2 and I am currently having this same issue.

The WebDropDown is posting back as I type in the dropdown and never autoselects the first match.

<ig:WebDropDown ID="ddl_Location" runat="server" Width="160px" AutoPostBack="true"  DataSourceID="SqlDataSource3" 
		TextField="LAST_NAME" ValueField="ENTITY_ID" 
		CssClass="Required" NullText="Required" 
                DisplayMode="DropDown" EnableCustomValueSelection="false"  EnableCustomValues="false" AutoSelectOnMatch="true"></ig:WebDropDown>

145

Rob Kroot posted over 10 years ago in reply to Lonnie Cross

Hi Lonnie,

Just try this dirty workaround, it did the trick for me:

<script type="text/javascript">

        var keyDown = null;

        function ddl_KeyDown(sender, eventArgs) {



            if (eventArgs._props[0].keyCode != 13)

                keyDown = true;

            else

                keyDown = false;

        }

        function ddl_SelectionChanging(sender, eventArgs) {

            if (keyDown !== null && keyDown)

                eventArgs.set_cancel(true);

        }

</script>

I’m just left with the issue that a TAB doesn’t trigger selectionchanged-event.
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125

Lonnie Cross posted over 10 years ago in reply to [Infragistics] David Young

I'm using Version 13.2, and this issue still exists. When I use the down arrow to navigate through the items it causes a postback. In my mind, it should only postback if I hit enter or click an item. Can someone please help me! This is an urgent issue. here is my code:

DropDownContainerHeight="0px"
DropDownContainerMaxHeight="200px"
DropDownContainerWidth="150px"
NullText="-- Select One --"
AutoSelectOnMatch="False"
KeepFocusOnSelection="false"
EnableAutoCompleteFirstMatch="false"
EnableAutoFiltering="Client"
EnableCustomValueSelection="false"
EnableCustomValues="false"
EnableMarkingMatchedText="True"
OnSelectionChanged="ddlSepCode_SelectionChanged">
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