DataGrid ItemEdit Validation
Hi all,
I have an application with datagrid inline editing
functionality. I have a custom item renderer for all the columns
and i have to perform validations also on the user entered data.
The itemEditEnd function goes like this,
private function editCell(event:DataGridEvent ) : void
if( event.reason == DataGridEventReason.CANCELLED) {
return;
var oldValue:String =
event.currentTarget.editedItemRenderer.data[event.dataField];
var newValue:String =
TextInput(event.currentTarget.itemEditorInstance).text;
if(newValue == "") {
event.preventDefault();
TextInput(dg.itemEditorInstance).errorString ="Enter a valid
string.";
return;
typical ex from Adobe.
It works fine and shows the error string in the exact edited
text box inside Grid.
But Once i integrate wit the DB with DMS call and tried to
edit, the error message is shown at a random place, say on top of
the page.
please help me out to solve this.
thanks in advance
Worst forums ever! Nobody can help with the insertion of a
currencyvalidator in a datagrid itemeditor?
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How to validate a whole column of DataGrid
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<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
>
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Validation of user inputs when using ItemRenderers in DataGrid
Hi,
I have to show multiple editable columns in a DataGrid.
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But is there a way I can use common validation for all the
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<![CDATA[
import mx.events.DataGridEvent;
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cellValue =
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if(cell == 'WLNET' && cellValue.length > 35) {
cellValue = cellValue.substr(0,35); //shortening it for user
demonstrates expected length
TextInput(event.currentTarget.itemEditorInstance).text =
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event.preventDefault(); // Prevent the user from removing
focus, and leave the cell editor open.
// Write a message to the errorString property.
// This message appears when the user mouses over the
editor.
TextInput(event.currentTarget.itemEditorInstance).errorString="Entered
text too long.";
return;
]]>
</mx:Script>
<mx:DataGrid id="enrolled_dg" editable="true"
itemEditEnd="processEdit(event);">
I learned part of this from the Flex documentation online:
Determining
the reason for an itemEditEnd event -
Validating user input in a datagrid column
Hi ,
I have 2 datagrid columns for users to enter data. I want to
restrict them only to enter numbers. I tried NumberValidator , that
does not work. Please help !! I am a newbee..
Thanks in advance..We created an itemEditor for our dataColumn that was a
mx:TextInput. Then we used the textInput event to capture keys as
they are typed. You get a TextEvent from that which you can cancel
if it something you don't want the user entering. We used regexs
for are validation here. I'm not sure if this is the best way to
handle this sort of thing, but it worked. -
Hi,
Is there any way to validate datagrid column or cell.
Please help
Thanks
Kumarquote:
Originally posted by:
peterent
Follow Tracy's advice, but also handle the itemEditEnd event.
In that event handler you can find if the data passed validation.
If it fails you can cancel the edit.
Look up itemEditEnd in the Flex 2 docs. -
LabelFunction for cell datagrid validation
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<mx:DataGridColumn headerText="Vendor Number" dataField="col1" itemRenderer="PriceLabel" />
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youTry using else if for the last two if statements.
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I'll show you how if you don't know. -
When clicking on datagrid row it throws me exception - WPF C#
Whenever I try to double click my datagrid row to edit it, I throws me a few exceptions which doesn't say anything to me. Hovever if
I set the whole datagrid to IsReadOnly to true, I want have the problem, but I need the second and third columns editable.
XAML
<DataGrid x:Name="clientList" HorizontalAlignment="Left" Height="225" Margin="11,126,0,0" VerticalAlignment="Top" Width="349" IsSynchronizedWithCurrentItem="False" AutoGenerateColumns="False" HorizontalGridLinesBrush="#FFB9B9B9" VerticalGridLinesBrush="#FF8B8B8B" GridLinesVisibility="Horizontal" CellStyle="{StaticResource Body_Content_DataGrid_Centering}">
<DataGrid.Resources>
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Exceptions
Exception:Thrown: "'EditItem' is not allowed for this view."(System.InvalidOperationException)
Exception:Thrown: "The string was not recognized as a valid DateTime. There is an unknown word starting at index 0." (System.FormatException)You need to set the ItemsSource property of the clientList DataGrid to a collection of DataClients objects that supports editing. HashSet<DataClients> does not for example but List<DataClients> and ObservableCollection<DataClients> does.
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There is nothing in the DataClients class that you have posted that will cause this exception to be thrown so it is impossible for anyone to tell.
But please only ask one question per thread and then start a new thread if you have a new question.
Please also remember to mark helpful posts as answer to close your threads.
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