OnBeforeExistingRowsRender Event

Description

This event allows you to inject HTML into the Grid part as the Grid is being rendered on the server. This event fires before any existing rows (as opposed to new record rows) are rendered.

Discussion

Allows you to inject custom HTML into the Grid before any rows for existing data in the Grid-Part are rendered.

The following variables are available to you in the event:

Variable
Description
e.tmpl

The grid component definition

e.rtc

You can put any data in this variable that you want to pass to other events. e.g. e.rtc.mydata = 'value1'

e.gridColumnCount

The total number of columns in the Grid <table>, including any system columns.

e.gridSystemColumnCount

The number of system columns in the Grid <table>. System columns are used for objects such as system buttons, row expander icon, etc.

Your event must set these properties:

Property
Description
e.html

The HTML markup that you want to add to the Grid HTML after any existing rows are rendered. IMPORTANT: HTML MUST be wrapped in <tr>...</tr> tags with the appropriate number of nested <td>...</td> tags.

e.javascript

(optional) Any Javascript that you want to execute

Setting State Variables 

You can also set state variables in this event. The value of any state variables will be available in all subsequent ajax callbacks (in the e.__si2 object).

To set a state variable:

e._state.myvar1 = "value1"
e._state.myvar2 = "value2"