excel 2010 - Databar Appears only when cell edit made -

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i have exported data datagridview excelsheet using epplus library

for = 0 analysis.dgv1.columns.count - 1      worksheet1.cells(1, + 1).value = analysis.dgv1.columns(i).headertext next = 0 analysis.dgv1.rows.count - 1     j = 0 analysis.dgv1.columns.count - 1          worksheet1.cells(i + 2, j + 1).value = analysis.dgv1.rows.item(i).cells(j).value     next next  using range = worksheet1.cells(2, 4, analysis.dgv1.rowcount, 5)       range.style.numberformat.format = "#,##0" end using

column 4,5 numeric column have added databar excelsheet using 

using range = worksheet1.cells(2, 4, analysis.dgv1.rowcount, 5)       range.conditionalformatting.adddatabar(system.drawing.color.lightgreen) end using

in exported excelsheet data shows fine but, databars appears when cell edit made here screenshot of image enter image description here

84,83 cell entered in edit mode other un touched

it's because databar needs numeric value , here entering number string try converting number before insert


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