Components of Px Framework:

Events of the PxWebQuery component

The PxWebQuery component contains events that are triggered by the change in state of the component. Each event of the PxWebQuery component can be defined in the "Page_Load" procedure of the form, where this event shall be triggered.
The definition of the events looks like as follows:

    
        if ((!IsPostBack)&&(wquAdresar.Active==false))

       {

          ….

          wquAdresar.AfterScroll += new PxControls.AfterScrollEventHandler(wquAdresar_AfterScroll);

          wquAdresar.Open();

          ….

       }

       else

       {

          wquAdresar.AfterScroll += new PxControls.AfterScrollEventHandler(wquAdresar_AfterScroll);

       }

Definition of the "wquAdresar_AfterScroll " procedure, which is called the " AfterScroll " event shall be as follows:

    
                 void wquAdresar_AfterScroll(object sender, EventArgs e)

                 {

                    lblAdresar.Text = wquAdresar.Fields["name"].ToString();

                 }

Each change of the current row cursor, either in the PxWebQuery component or in the PxSuperGrid component, which is linked to the PxWebQuery component, triggers the "AfterScroll event. The "Name" column value of the current row is registered in the Label component for the each event triggered.

The following table contains a summary of all events of the PxWebQuery component.

Event Name	Event Description
BeforeInsert	This event is triggered before the execution of the PxWebQuery.Insert () command;
AfterInsert	This event is triggered after the execution of the PxWebQuery.Insert () command;
BeforeEdit	This event is triggered before the execution of the PxWebQuery.Edit () command ;
AfterEdit	This event is triggered after the execution of the PxWebQuery.Edit () command;
BeforePost	This event is triggered before the execution PxWebQuery.Post () command;
AfterPost	This event is triggered after the execution of the PxWebQuery.Post () command;
BeforeValidPost	This event is triggered during the verification of the specified items before the actual data storing by Post () method;
BeforeOpen	This event is triggered before the execution of the PxWebQuery.Open () command;
AfterOpen	This event is triggered after the execution of the PxWebQuery.Open () command;
BeforeScroll	This event is triggered before the change of the row cursor position in the PxWebQuery component
AfterScroll	This event is triggered after the change of the row cursor position in the PxWebQuery component
BeforeDelete	This event is triggered before the execution of the PxWebQuery.Delete() command;
AfterDelete	This event is triggered after the execution of the PxWebQuery.Delete () command;
BeforeCancel	This event is triggered before the execution of the PxWebQuery.Cancel () command;
AfterCancel	This event is triggered after the execution of the PxWebQuery.Cancel () command;
StateChange	This event is triggered during the change in the state of the PxWebQuery component, usually after the execution of the Insert, Edit, Delete, Post, and other commands.
AfterCreateField	This event is triggered after the set up of all the table columns (fields) of the PxWebQuery component. This event is used mainly to create a new dynamic column (field) of the PxWebQuery component table.

Others articles of Px Framework:

PxWebQuery - component for working with databases

PxSuperGrid - component for the direct display of data in the table

PxEdit - component for data editing, similar to the TextBox component

PxComboBox - component for selecting data from a list, similar to the DropDownList component

PxCheckBox - component for checking the value (Check / UnCheck value)

PxFlyComboBox - set of the consecutively linked comboboxes, suitable for the work with structured data (for example: selection of category and subcategory)

PxGreatRepeater - component for entering data with repeating structure, maximum number of values is limited

PxJSDatePicker - component for the date entry, based on the JavaScript

PxDbNavigator - the component for the work with the PxWebQuery components, row cursor movement, etc.

PxLabel - component for data display

PxCheckBoxList - component to view and select values from the list

PxRadioButtonList - component for view and selection of a value from the list

PxChart - the component for displaying and working with charts

PxFilterView - visual component for filtering the table data contents in the PxWebQuery component

PxUploader - component for uploading binary and text files to the server

PxLogin - component for authorization and logging into the application

Data loading from the Oracle, MSSQL, MySQL, FireBird, Interbase database by means of the PxWebQuery components

Program inserting, editing or deleting of row into the database by means of the PxWebQuery component

Loading values from the PxWebQuery component via the while cycle

Row search in the PxWebQuery component according to the value entered and the name of the column where the search shall be carried out

The "ReOpen" procedure of the PxWebQuery component and data re-load into the PxWebQuery component

Validation, checking of the entered values by means of the PxWebQuery component and other visual components (PxEdit, PxComboBox, etc.)

Events of the PxWebQuery component

A special function GetValueFromStructKey of the PxWebQuery component

Setting the language mutation of the Px Framework

Finding the current version of the Px Framework

It doesn't the intention of this part website, describe in detail the work with PxFramework components, a detailed description of the component available in manual, which can be downloaded here: Download manual of Px Framework

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Events of the PxWebQuery component