Fixed images not saving when right clicking the save button

Author: izarooni

README.md

@@ -6,5 +6,6 @@ Target framework .NET 4.5.1 using [MapleLib](https://github.com/haha01haha01/Map
 - Select multiple cells, rows or columns
 - Double click 'Properties' cells to view formatted data
 - Read straight from WZ files and save as BIN to save disk space and load times
+- Right click the save button to save all images into a folder
 
 ![application screenshot](https://raw.githubusercontent.com/izarooni/WzVisualizer/master/WzVisualizer/Resources/screenshot1.png)

WzVisualizer/GUI/Form1.cs

@@ -585,8 +585,8 @@ private void BtnSave_Click(object sender, EventArgs ev) {
                 }
                 case MouseButtons.Right: {
                     var control = TabControlMain.SelectedTab.Controls[0];
-                    if (control is DataGridView grid) // no child tabs and contains 1 child Control (DataGridView)
-                        GridIOUtility.ExportGridImages(grid, TabControlMain.SelectedTab.Text);
+                    if (control is DataViewer dataViewer) // no child tabs and contains 1 child Control (DataGridView)
+                        GridIOUtility.ExportGridImages(dataViewer.GridView, TabControlMain.SelectedTab.Text);
                     else if (control is TabControl tab) { // contains child controls (e.g. Equips.Hairs, Equips.Faces)
                         control = tab.SelectedTab; // The selected child Tab (e.g. Equips.Hairs)
                         GridIOUtility.ExportGridImages((DataGridView)control.Controls[0], TabControlMain.SelectedTab.Text); // The DataGridView contained in the TabPage control