aspnet-devexpress-dot-web-dot-aspxtreelist-871a1227.md
Provides data for the ASPxTreeList.HtmlDataCellPrepared event.
Namespace : DevExpress.Web.ASPxTreeList
Assembly : DevExpress.Web.ASPxTreeList.v25.2.dll
NuGet Package : DevExpress.Web
public class TreeListHtmlDataCellEventArgs :
EventArgs
Public Class TreeListHtmlDataCellEventArgs
Inherits EventArgs
TreeListHtmlDataCellEventArgs is the data class for the following events:
The following example illustrates how to hide the tree list’s parent nodes cell content.
MVC:
.HideCell {
visibility: hidden;
}
settings.HtmlCommandCellPrepared = (sender, e) =>
{
var tl = (MVCxTreeList)sender;
if (tl.FindNodeByKeyValue(e.NodeKey).ChildNodes.Count > 0)
e.Cell.CssClass = "HideCell";
};
settings.HtmlDataCellPrepared = (sender, e) =>
{
var tl = (MVCxTreeList)sender;
if (e.Column.FieldName != "From") {
if (tl.FindNodeByKeyValue(e.NodeKey).ChildNodes.Count > 0)
e.Cell.CssClass = "HideCell";
}
};
...
Private Sub SurroundingSub()
settings.HtmlCommandCellPrepared = Function(sender, e)
Dim tl = CType(sender, MVCxTreeList)
If tl.FindNodeByKeyValue(e.NodeKey).ChildNodes.Count > 0 Then e.Cell.CssClass = "HideCell"
End Function
settings.HtmlDataCellPrepared = Function(sender, e)
Dim tl = CType(sender, MVCxTreeList)
If e.Column.FieldName <> "From" Then
If tl.FindNodeByKeyValue(e.NodeKey).ChildNodes.Count > 0 Then e.Cell.CssClass = "HideCell"
End If
End Function
End Sub
...
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;
}
}
Imports System.Drawing
Protected Sub treeList_HtmlRowPrepared(ByVal sender As Object, ByVal e As TreeListHtmlRowEventArgs)
If Object.Equals(e.GetValue("Location"), "Monterey") Then
e.Row.BackColor = Color.FromArgb(211, 235, 183)
End If
End Sub
Protected Sub treeList_HtmlDataCellPrepared(ByVal sender As Object,_
ByVal e As TreeListHtmlDataCellEventArgs)
If e.Column.Name = "budget" Then
Dim value As Decimal = CDec(e.CellValue)
e.Cell.BackColor = GetBudgetColor(value)
If value > 1000000D Then
e.Cell.Font.Bold = True
End If
End If
End Sub
Object EventArgs TreeListHtmlDataCellEventArgs
See Also
TreeListHtmlDataCellEventArgs Members
Tree List Appearance Customization