Position transfer value of the ContextMenuStrip Control

The common method for this control is to directly set the ContextMenuStrip attribute of its subordinate control to contextMenuStrip1 to ensure the correctness of the right-click menu position.

However, sometimes we need to set the position of ContextMenuStrip to display the right-click menu at a specific location of a container;

S1. declare a right-click menu control;

S2. add the right-click menu content;

S3. set the right-click menu to follow the mouse clicking position. The key is the Coordinate Transformation of the location; oView. pointToScreen (e. location); The oView object must be correctly selected, that is, the right-click container should appear, and its coordinate conversion method should be used to get the right-click Location;

This ensures that the right-click menu appears correctly.

The following code is provided:

ContextMenuStrip cms = new ContextMenuStrip (); cms. items. add ("attribute settings"); // coordinate conversion ensures that the right-click menu appears at the clicked position Point p = oView. pointToScreen (e. location); cms. show (p); cms. items [0]. tag = oView; cms. items [0]. click + = ContextMenuStrip_Click;

In addition, I encountered another problem during the Development. I right-Click to set the attribute of an object. However, what should I do if this object cannot be obtained in this Click event? I tried to use the Tag attribute to pass the required value to the click event for processing. The result is OK.

// Right-click the event private void ContextMenuStrip_Click (object sender, EventArgs e) {XX view = (ToolStripDropDownItem) (sender). Tag as XX ;}

It is not completely thorough and is for reference only. If you have a better method, please leave a message. Thank you.