CODEWITHSUNDEEP
c#winformsevents
yevgene_ro
yevgene_ro

Reputation: 69

Why am I not getting any MouseMove events while the mouse button is pressed?

I have a MainPanel which contains myElement. When I press the mouse button on the panel, and move it over myElement while still holding the button, myElement_MouseMove does not get called.

private void myElement_MouseMove(object sender, MouseEventArgs e)
{
    myElementStatus_lbl.Text = "I SEE YOU";
}

It works when I'm not holding the mouse button down.

How do I detect mouse movement when the mouse button is down?

this.MainPanel.Controls.Add(this.myElement);
this.MainPanel.Location = new System.Drawing.Point(182, 84);
this.MainPanel.Name = "MainPanel";
this.MainPanel.Size = new System.Drawing.Size(604, 309);
this.MainPanel.TabIndex = 0;

// 
// myElement
// 
this.myElement.Location = new System.Drawing.Point(220, 67);
this.myElement.Name = "myElement";
this.myElement.Size = new System.Drawing.Size(200, 100);
this.myElement.TabIndex = 0;

Upvotes: 5

Views: 2281

Answers (1)

A G
A G

Reputation: 22617

I think its because drag events occur during mouse pressed. So when your holding the mouse button and the mouse enters a control, drag enter event takes place.

You can detect mouse movements using one of the drag events. DragEnter, DragOver, DragLeave.

Edit: DoDragDrop disables MouseMove Events

Upvotes: 5

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