Excel Get_Range with multiple areas
Solution 1
A very simple solution is to specify different areas in comma-separated form:
sheet.get_Range( "A1:B1,E1:G1");
For programmatic range combinations, there are also the Union
and Intersection
methods of the ExcelApplication object. Those are a little bit clumsy to use in C# because of many optional parameters. See here
for examples.
EDIT: some additional hints:
In your case, you first should transform the "ColumnsToSkip" in "ColumnsToKeep", since that is what you will need for any kind of cell union. Here is a Linq solution:
int[] ColumnsToKeep = Enumerable.Range(StartColumn, EndColumn -StartColumn + 1)
.Except(ColumnsToSkip)
.ToArray();
Then, you can create something along the lines of this example:
Excel.Range totalRange = null;
foreach(int col in ColumnsToKeep)
{
totalRange = Union(excelApp,totalRange,(Excel.Range)sh.Cells[row, col]);
}
where "Union" is defined, for example, like this:
static Excel.Range Union(Excel.Application app, Excel.Range r1, Excel.Range r2)
{
if (r1 == null && r2 == null)
return null;
if (r1 == null)
return r2;
if (r2 == null)
return r1;
return app.Union(r1, r2,
null, null, null, null, null, null,
null, null, null, null, null, null,
null, null, null, null, null, null,
null, null, null, null, null, null,
null, null, null, null);
}
Solution 2
Try this:
using Excel = Microsoft.Office.Interop.Excel;
- Collect your ranges into an array:
Excel.Range[] ranges = new Excel.Range[] {yourRange1, yourRange2, ... };
- Create string-range with ranges addresses and get multi-range from it:
string multiRangeStr = "";
foreach (Excel.Range range in ranges)
{
string address = range.Address[true, true, Excel.XlReferenceStyle.xlA1];
multiRangeStr += (multiRangeStr == "" ? "" : ";") + address;
}
//output: multiRangeStr: "A1:A3;B1:B3"
Excel.Range multiRange = wsheet.Range(multiRangeStr);
Ian
I'm an enthusiastic JavaScript and C# developer who enjoys challenging problems. I've recently been involved purely in JavaScript development working on Single Page Applications and visualizations.
Updated on July 16, 2022Comments
-
Ian almost 2 years
I'm trying to get a range from Excel, which has multiple areas specified, essentially I've got...
int StartColumn
int EndColumn
int[] ColumnsToSkipWhen you combine these it's possible to produce a range with non-contiguous areas. Unfortunately I can't quite figure out the call to get this... MSDN isn't very useful...
WorkSheet sheet;
sheet.get_Range( what goes in here??? );
Anyone provide any help? Cheers.
-
Ian almost 13 yearsIt's a bit more awkward, as I'm dealing with indicies, but if it's the only way..
-
Doc Brown almost 13 years@Ian: see my elaborated answer above.
-
Ian almost 13 yearsNot tried it yet but looks like that'll do the job. Just about to give it a whirl. Gotta love the intelli-sense for that app.Union method, nice to at last have optional params in C#!
-
Slai over 8 yearssecond parameter of Enumerable.Range is count : int[] ColumnsToKeep = Enumerable.Range(StartColumn, EndColumn - StartColumn + 1).Except(ColumnsToSkip).ToArray();
-
Alex S over 3 yearsCongrats on your fist post!