triggers

How can I change the Visibility of a TextBlock with a Trigger?

When I try to compile the following code, I get the error 'Visibility' member is not valid because it does not have a qualifying type name. What do I have to change so that I can make the TextBlock disappear when Status=off? XAML: <Window x:Class="TestTrigger123345.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/prese...

How can I get a trigger to change the color of a TextBlock based on a DataContext Property?

Why does the following code get the runtime error Members of the Triggers collection must be of type EventTrigger? But the EventTrigger element doesn't have a Binding property. So how do I change the color of the TextBlock based on the DataContext Property? XAML: <Window x:Class="TestTrigger123345.Window1" xmlns="http://schemas.m...

How can I use a XAML trigger to say great-than-or-equal-to a value?

I can create simple triggers that check if a property has a specific value like this: <Style x:Key="StatusIndicator" TargetType="TextBlock"> <Style.Triggers> <DataTrigger Binding="{Binding Status}" Value="off"> <Setter Property="TextBlock.Foreground" Value="Red"/> </DataTrigger> </Style.Triggers> </St...

How you get a list of updated columns in SQL server trigger ?

I want to know what columns where updated during update operation on a triger on first scaaning books online it looks like COLUMNS_UPDATED is the perfect solution but this function actualy don't check if values has changed , it check only what columns where selected in update clause, any one has other suggestions ? ...

SelectedItem Trigger

Can I use a trigger on the SelectedItem property in any control that supports SelectedItem? <Trigger Property="SelectedItem" Value="{x:NotNull}" > </Trigger> What I want is when the SelectedItem is Not null for the trigger to fire. Tnx ...

Issues Creating SQL Server triggers using SQuirreL SQL Client

Recently I have been working with a SQL Server database and I was trying to create some triggers for some tables using SQuirreL SQL Client and for some reason I was unable to get rid of the following pesky error message: "Error: 'CREATE TRIGGER' must be the first statement in a query batch. SQLState: S0001 ErrorCode: 111" The query I ...

trigger body click with jQuery

I'm unable trigger a click on the body tag using jQuery, I'm using this... $('body').click(); even this fails $('body').trigger('click'); Any ideas?! ...

How can I get a trigger to fire when the contents of a StackPanel changes?

The following code makes the contents of a StackPanel fade in when it is loaded (StackPanel.Loaded). What do I have to change to get the fade it to start when the contents of the StackPanel change, e.g. every time a message in the StackPanel changes I want it to fade in again? <Style x:Key="MessageStyle" TargetType="StackPanel"> <S...

SQL: No Identity feature workaround using triggers, Any Help?

I'm a little rusty with my triggers and what not and am trying to figure out this problem for a class: In a database TEST, tables do not have the option of the IDENTITY feature. In other words, when we insert a row into the table “Users”, we would like the primary key “UserID” to auto-increment. Please suggest a workaround to implement ...

Activating OnBeforeUnload ONLY when field values have changed

Hey guys, What I'm trying to achieve is to Warn the user of unsaved changes if he/she tries to close a page or navigate away from it without saving first. I've managed to get the OnBeforeUnload() dialog to pop-up... but I don't want it to be displayed at all if the user hasn't modified any field values. For this, I'm using this hidd...

Testing linked server conccetion inside trigger or procedure

I wrote a trigger that updates local table and similar table on linked server. CREATE TRIGGER myTtableUpdate ON myTable AFTER UPDATE AS IF (COLUMNS_UPDATED() > 0) BEGIN DECLARE @retval int; BEGIN TRY EXEC @retval = sys.sp_testlinkedserver N'my_linked_server'; END TRY BEGIN CATCH SET @retval = sign(@@error); END CAT...

Instead Insert Trigger

Can someone give me the skeleton body of an Instead of Insert Trigger for MSSQL. I am trying to test the largest value in an Purchase Order Column (which is an integer) and on insert it grabs the largest value increments that by one and inserts that as the Purchase Order ID. The column was not setup with an Auto Increment option so I am ...

Does a trigger on update, that updates its own table, recall the trigger?

I have a table called Point. The table has two columns that we'll deal with, ActualDepth and DesignDepth. When someone updates ActualDepth I have a trigger that will recalculate the DesignDepths for all of the other points that are near the updated one. My question then is, Will my trigger be called recursively because other rows in...

Naming conventions for DB triggers

Are there any naming conventions for DB triggers? For example "before delete on users" would be "bdUsers" or something like that. ...

Need some help with Sql Server and a simple Trigger.

Hi folks, I wish to make a trigger but i'm not sure how to grab the data for whatever caused the trigger. I have a simlpe table. FooId INT PK NOT NULL IDENTITY Name VARCHAR(100) NOT NULL I wish to have a trigger so that when an UPDATE, INSERT or DELETE occurs, i then do the following. Pseduocode IF INSERT Print 'Insert' & Name...

Dynamically finding column values in a trigger from INSERT when the column name is a variable

I have a trigger that gets inserts and updates to a view. I need to find the columns that are being modified and get the value into the correct table. INSERT INTO TempTableAttr_Lot(ID, [% Num]) VALUES(3, 24.0) I am trying to figure out how, in my trigger, to get the value of ID and [% Num] columns. The problem is that there can be 32...

Jquery triggering a click

I've been trying to use jquery to trigger a click. I've discovered that triggered clicks, like this: $(button).trigger('click'); do not follow hrefs. I've been trying to make an ajax submission by triggering the submit button, but no go. I know I can submit directly. But is there any way of triggering the button? Thanks. ...

Setting a property with an EventTrigger

I want to be able to set a property with an EventTrigger, there's a number of problems with this. 1) EventTriggers only support Actions, so I must use a storyBoard to set my properties. 2) Once I use a storyboard, I have two options: Stop: Once the animation has stopped the value reverts back to before the animation started HoldEn...

How to refactor a trigger that uses the inserted and deleted tables, to move common code to a stored procedure

I have a trigger that will be dynamically created, as it will be attached to a view that is also dynamically generated. I don't want my stored procedure to have the entire trigger within it, so I would like to move most of it to a stored procedure, but I won't know the fields in the inserted and deleted tables. The trigger is about 90 ...

MySQL trigger/procedure execution delay

Hi! Is there a decent way to delay execution of mysql trigger? WHILE @condition = 0 sleep for awhile insert into some_table values(NEW.value1, NEW.value2); ...