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Article ID: 514
Last updated: 16 Apr, 2018
Problem
How can I determine the new row or column ID after the user has dragged the rows/columns?
Cause
Action
Here are some steps:
Add a user attribute. See gridsvw5.cpp in gridapp how to add a user attribute.
Also, add an array:
| CDWordArray m_awOriginalCol; |
At initialization time (in OnInitialUpdate()), you assign the column id to this user attribute, e.g.
| for (ROWCOL nCol = 0; nCol < nCount; nCol++) { |
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| wsprintf(sz, _T("%d"), nCol);
SetStyleRange(CGXRange().SetCols(nCol), CGXStyle().SetUserAttribute(IDS_UA_COLID, sz)); |
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| } | ||
Next, you override StoreMoveCols and StoreRemoveCols. In your overrides you call the base class version and after that you execute a line like the following:
| for (ROWCOL nCol = 0; nCol < nCount; nCol++) { |
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| CGXStyle style; GetStyleRowCol(0, nCol, style, gxCopy, -1); m_awOriginalCol[atoi(style.GetUserAttribute(IDS_UA_COLID))] = nCol; |
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| } | ||
(You might also use SetItemDataPtr() and use type conversion to an integer instead of using a user attribute).
Now, whenever you want to access the original column you may call
| if (m_awOriginalCol.GetSize() > nCol && m_awOriginalCol[nCol] > 0) { |
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| // columns have been rearranged, get original column nCol = m_awOriginalCol[nCol]; |
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| } GetStyleRowCol(nRow, nCol, ....); |
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Article ID: 514
Last updated: 16 Apr, 2018
Revision: 3
Views: 1879
Posted: 09 Jan, 2001 by
Meltreger B.
Updated: 16 Apr, 2018 by
Meltreger B.
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