CBCGPGridColumnsInfoEx

Detailed Description

The CBCGPGridColumnsInfoEx class extends the functionality of the CBCGPGridColumnsInfo class to allow creation of custom header layout.

To create a custom layout you have to perform the following steps:

• Derive a class from CBCGPGridCtrl
• Declare a member of type CBCGPGridColumnsInfoEx (m_ColumnsEx in the example below).
• Override GetColumnsInfo and return m_ColumnsEx as following:
  • virtual CBCGPGridColumnsInfo& GetColumnsInfo() { return m_ColumnsEx; }
  • virtual const CBCGPGridColumnsInfo& GetColumnsInfo () const { return m_ColumnsEx; }
• Call SetHeaderLineCount() function to set two or more header lines.
• Call AddHeaderItem() function to construct specific header layout.

Example 1:

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// The sample adds the additional header line above all columns

m_ColumnsEx.SetHeaderLineCount(2);

CArray<int, int> arrLines;

arrLines.Add(0);

m_ColumnsEx.AddHeaderItem(NULL, &arrLines, -1, _T("Span to all columns"), HDR_CENTER);

Example 2:

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// The sample merges header for columns #2 and #3

CArray<int, int> arrMergeColumns;

arrMergeColumns.Add(2);

arrMergeColumns.Add(3);

m_ColumnsEx.AddHeaderItem (&arrMergeColumns, NULL, -1, _T("Span columns #2 and #3"), HDR_CENTER, 4);