ערוך

שתף באמצעות

ListView.HitTest Method

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Provides item information, given an x- and y-coordinate.

Overloads

HitTest(Point)

Provides item information, given a point.
HitTest(Int32, Int32)

Provides item information, given x- and y-coordinates.

HitTest(Point)

Provides item information, given a point.

public:
 System::Windows::Forms::ListViewHitTestInfo ^ HitTest(System::Drawing::Point point);
public System.Windows.Forms.ListViewHitTestInfo HitTest (System.Drawing.Point point);
member this.HitTest : System.Drawing.Point -> System.Windows.Forms.ListViewHitTestInfo
Public Function HitTest (point As Point) As ListViewHitTestInfo

Parameters

point
Point

The Point at which to retrieve the item information. The coordinates are relative to the upper-left corner of the control.

Returns

ListViewHitTestInfo

The item information, given a point.

Exceptions

ArgumentOutOfRangeException

The point contains coordinates that are less than 0.

Remarks

Use this method to determine whether a point is in an item or subitem and where in the item the point is located, such as on the label or image area. If the coordinates are located outside the control, the returned ListViewHitTestInfo object has a Location property of "None"; and the Item and SubItem properties are set to null.

Applies to

HitTest(Int32, Int32)

Provides item information, given x- and y-coordinates.

public:
 System::Windows::Forms::ListViewHitTestInfo ^ HitTest(int x, int y);
public System.Windows.Forms.ListViewHitTestInfo HitTest (int x, int y);
member this.HitTest : int * int -> System.Windows.Forms.ListViewHitTestInfo
Public Function HitTest (x As Integer, y As Integer) As ListViewHitTestInfo

Parameters

x
Int32

The x-coordinate at which to retrieve the item information. The coordinate is relative to the upper-left corner of the control.

y
Int32

The y-coordinate at which to retrieve the item information. The coordinate is relative to the upper-left corner of the control.

Returns

ListViewHitTestInfo

The item information, given x- and y- coordinates.

Exceptions

ArgumentOutOfRangeException

The x- or y-coordinate is less than 0.

Examples

The following code example demonstrates using the HitTest method to determine the location of a mouse event in a ListView. To run this example, paste it into a Windows Form that contains a ListView named listView1 that is populated with items. Associate the MouseDown event for listView1 with the listView1_MouseDown method in this example.

void HandleMouseDown(object sender, MouseEventArgs e)
{
    ListViewHitTestInfo info = listView1.HitTest(e.X, e.Y);
    MessageBox.Show(info.Location.ToString());
}

Private Sub HandleMouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) _
        Handles Me.MouseDown, listView1.MouseDown

    Dim info As ListViewHitTestInfo = listView1.HitTest(e.X, e.Y)
    MessageBox.Show(info.Location.ToString())

End Sub

Remarks

Use this method to determine whether a point is in an item or subitem, and where in the item the point is located, such as on the label or image area. If the coordinates are located outside the control, the returned ListViewHitTestInfo object has a Location property of "None"; and the Item and SubItem properties are set to null.

Applies to