c# - How to merge two datarow cells into one? -

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i trying merge 2 datarow cells one. here initializing code:

datatable dt = new datatable(); datacolumn dc; datarow dr;  dc = new datacolumn(); dc.datatype = system.type.gettype("system.string"); dc.columnname = "col1"; dt.columns.add(dc);  dc = new datacolumn(); dc.datatype = system.type.gettype("system.string"); dc.columnname = "col2"; dt.columns.add(dc);  dc = new datacolumn(); dc.datatype = system.type.gettype("system.string"); dc.columnname = "col3"; dt.columns.add(dc);  dc = new datacolumn(); dc.datatype = system.type.gettype("system.string"); dc.columnname = "col4"; dt.columns.add(dc);  dc = new datacolumn(); dc.datatype = system.type.gettype("system.string"); dc.columnname = "col5"; dt.columns.add(dc);

this code have each column in excel:

dr = dt.newrow(); dr["col1"] = ""; dr["col2"] = "quarter 1"; dr["col3"] = ""; dr["col4"] = ""; dr["col5"] = ""; dt.rows.add(dr);

and this:

separate individual cell

but want this:

merged cell

any thoughts or ideas on how can this? found rather hard merge cells.


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