- VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE HOW TO
- VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE INSTALL
- VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE FULL
- VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE CODE
VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE CODE
Another thing is need to skip drawing grid lines inside a merged range, it is also possible to calculate how many cells should be skipped by this two references.Ĭopy Code int skips = l - l Need to be improved When user clicked inside any cells which is contained by a range, now it is possible to find the range quickly by two pointers, merge-start-cell and merge-end-cell. They are defined at the position top-left and bottom-right of the merged range.Īll of cells in this range will be initialized instantly, and they will keeping two pointers reference to the merge-start-cell and merge-end-cell. Two cells are defined as special cells, one is called merge-start-cell, another one is merge-end-cell. But the grid lines should be skipped inside merged ranges, although the merged range displayed without any back color filled. Grid lines drawing should be skipped inner a merged range - By default a spreadsheet will draw the horizontal and vertical grid lines to fill the view-port which displayed to user.
VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE HOW TO
It is need to check whether the cell which has been clicked, is a part of merged range, and if it is, how to find the range quickly.
VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE FULL
Faster way to find boundary of merged range (when user clicked inside a cell) - When control receives mouse events, mouse-down or mouse-over, a full entire merged range should be selected, rather than a single cell.To calculate index, get and set array elements by paging-indexed two-dimensional array in ReoGrid, the getter and setter looks like:įor ( int d = MaxDepth - 1 d > 0 d-) Merge implementation The points was considered during designing the merge implementation So the physical maximum supported capacity of array is:Īlthough the row capacity of cells can be 2,097,152, but there is need to set a limit on rows to 1,048,576 in order to fit the data struct of header of rows. Currently ReoGrid uses the following values of page size: Consider to get a good balance between page-size and tree-depth is most important. The deeper tree will spend more time during once cell accessing. Smaller size of page will take fewer memory, but if they are too small, a more deeper tree is necessary to be created in order to get larger capacity of array. To access a cell, according to the depth of tree, an index of cell will be calculated two times (the depth of tree is 2): Treeīy combining some pages, link them into a larger page as parent index-page, can help to decrease the memory usage.Īll the cells data will be attached to the most bottom of index-pages, for example:Īny never been accessed index-pages, and the cells will be null, they do not use memory. If the size of page is power of 2, it will be more effective to use bit-computing instead of division. Make following two Dlls are added into reference list of proejct:Ĭopy Code int pageIndex = index / pageSize Powerful and fast colored highlight text editor Full - Grid Control, Core features, GUI Editor and Script Execution.Editor - Grid Control, Core features, and GUI Editor support.Minimum - Only the Grid Control and core features support.Choose the Control appeared in Toolbox and drag it into designer, control added looks like:Īdd following required files into reference list for different distribute library:.Right-click on Toolbox panel, click 'Choose Items.'.
VISUAL STUDIO 2018 ADD EXCEL DATA SOURCE INSTALL
Demo Form Usage Guideline Install Add Control by Form Designer
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