ASPxTreeList.HtmlRowPrepared Event
Enables the settings of individual rows to be changed.
Namespace: DevExpress.Web.ASPxTreeList
Assembly: DevExpress.Web.ASPxTreeList.v20.2.dll
Declaration
public event TreeListHtmlRowEventHandler HtmlRowPreparedPublic Event HtmlRowPrepared As TreeListHtmlRowEventHandlerEvent Data
The HtmlRowPrepared event's data class is TreeListHtmlRowEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Level | Gets the nesting level of the processed node. |
| NodeKey | Gets the processed node's key value. |
| Row | Gets the processed row. |
| RowKind | Gets the processed row's type. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| GetValue(String) | Returns the value of the specified cell within the processed row. |
Remarks
The HtmlRowPrepared event is raised for each row (node, preview, footer, group footer) within the ASPxTreeList. You can handle this event to change the style settings of individual rows.
The processed row is identified by the TreeListHtmlRowEventArgs.RowKind property.
Examples
This example shows how to paint individual data cells and entire nodes depending upon the ASPxTreList's data. The ASPxTreeList.HtmlDataCellPrepared event is handled to custom paint budgets that are greater than $1,000,000.
The ASPxTreeList.HtmlRowPrepared event is handled to custom paint departments located at Monterey.
The image below shows the result:
using System.Drawing;
protected void treeList_HtmlRowPrepared(object sender, TreeListHtmlRowEventArgs e) {
if(Object.Equals(e.GetValue("Location"), "Monterey"))
e.Row.BackColor = Color.FromArgb(211, 235, 183);
}
protected void treeList_HtmlDataCellPrepared(object sender, TreeListHtmlDataCellEventArgs e) {
if(e.Column.Name == "budget") {
decimal value = (decimal)e.CellValue;
e.Cell.BackColor = GetBudgetColor(value);
if(value > 1000000M)
e.Cell.Font.Bold = true;
}
}