TreeNode.Checked Property
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets or sets a value indicating whether the tree node is in a checked state.
public:
property bool Checked { bool get(); void set(bool value); };C#
public bool Checked { get; set; }member this.Checked : bool with get, setPublic Property Checked As Booleantrue if the tree node is in a checked state; otherwise, false.
The following code example highlights any TreeNode objects a TreeView control that has its Checked property set to true by setting its BackColor property to Yellow. This code requires that you have a TreeView control on a Form with a collection of TreeNode objects.
public:
void HighlightCheckedNodes()
{
int countIndex = 0;
String^ selectedNode = "Selected customer nodes are : ";
IEnumerator^ myEnum = myTreeView->Nodes[ 0 ]->Nodes->GetEnumerator();
while ( myEnum->MoveNext() )
{
TreeNode^ myNode = safe_cast<TreeNode^>(myEnum->Current);
// Check whether the tree node is checked.
if ( myNode->Checked )
{
// Set the node's backColor.
myNode->BackColor = Color::Yellow;
selectedNode = String::Concat( selectedNode, myNode->Text, " " );
countIndex++;
}
else
myNode->BackColor = Color::White;
}
if ( countIndex > 0 )
MessageBox::Show( selectedNode );
else
MessageBox::Show( "No nodes are selected" );
}
C#
public void HighlightCheckedNodes()
{
int countIndex = 0;
string selectedNode = "Selected customer nodes are : ";
foreach (TreeNode myNode in myTreeView.Nodes[0].Nodes)
{
// Check whether the tree node is checked.
if(myNode.Checked)
{
// Set the node's backColor.
myNode.BackColor = Color.Yellow;
selectedNode += myNode.Text+" ";
countIndex++;
}
else
{
myNode.BackColor = Color.White;
}
}
if(countIndex > 0)
MessageBox.Show(selectedNode);
else
MessageBox.Show("No nodes are selected");
}
Public Sub HighlightCheckedNodes()
Dim countIndex As Integer = 0
Dim selectedNode As String = "Selected customer nodes are : "
Dim myNode As TreeNode
For Each myNode In myTreeView.Nodes(0).Nodes
' Check whether the tree node is checked.
If myNode.Checked Then
' Set the node's backColor.
myNode.BackColor = Color.Yellow
selectedNode += myNode.Text + " "
countIndex += 1
Else
myNode.BackColor = Color.White
End If
Next myNode
If countIndex > 0 Then
MessageBox.Show(selectedNode)
Else
MessageBox.Show("No nodes are selected")
End If
End Sub
| Proizvod | Verzije |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9, 10 |
Surađujte s nama na GitHubu
Izvor za ovaj sadržaj možete pronaći na GitHubu, gdje možete stvarati i pregledavati probleme i zahtjeve za povlačenjem. Dodatne informacije potražite u našem vodiču za suradnike.
Povratne informacije o proizvodu .NET
.NET je projekt otvorenog koda. Odaberite vezu za slanje povratnih informacija: