asp.net - How to set width and background color of the cell while exporting to excel with multiple sheets in using ExcelHelper class -

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i create multiple sheets in excel file not format cells giving proper width columns

i need display generated excel like:-

  column1                                               column2

dataaaaaaaaaaaaaaaaiaaaaaaa 4 data data ggghjkkllil

aaaaaddfdfffgggggggggggggg 5

column1 , column2 should centrally aligned while column column1 , column2 data should wrapper text blue color background

this requires columns give proper width , text should wrapper text.unfortunately unable give proper styles.and want apply background color cell.for background color using

sb.appendformat(@"   <interior ss:color=""#2e2efe""/>{0}", environment.newline);

but nt working. here giving code.

 stringbuilder sb = new stringbuilder(818);     sb.appendformat(@"<?xml version=""1.0""?>{0}", environment.newline);     sb.appendformat(@"<?mso-application progid=""excel.sheet""?>{0}", environment.newline);     sb.appendformat(@"<workbook xmlns=""urn:schemas-microsoft-com:office:spreadsheet""{0}", environment.newline);     sb.appendformat(@" xmlns:o=""urn:schemas-microsoft-com:office:office""{0}", environment.newline);     sb.appendformat(@" xmlns:x=""urn:schemas-microsoft-com:office:excel""{0}", environment.newline);     sb.appendformat(@" xmlns:ss=""urn:schemas-microsoft-com:office:spreadsheet""{0}", environment.newline);      sb.appendformat(@" xmlns:html=""http://www.w3.org/tr/rec-html40"">{0}", environment.newline);     sb.appendformat(@" <styles>{0}", environment.newline);     sb.appendformat(@"  <style ss:id=""default"" ss:name=""normal"">{0}", environment.newline);     sb.appendformat(@"   <alignment ss:vertical=""bottom""/>{0}", environment.newline);     sb.appendformat(@"   <borders/>{0}", environment.newline);     sb.appendformat(@"   <font ss:fontname=""calibri"" x:family=""swiss"" ss:size=""11"" ss:color=""#000000""/>{0}", environment.newline);     sb.appendformat(@"   <interior/>{0}", environment.newline);     sb.appendformat(@"   <numberformat/>{0}", environment.newline);     sb.appendformat(@"   <protection/>{0}", environment.newline);     sb.appendformat(@"  </style>{0}", environment.newline);       sb.appendformat(@"  <style ss:id=""s62"">{0}", environment.newline);     sb.appendformat(@"   <alignment ss:vertical=""bottom""/>{0}", environment.newline);     sb.appendformat(@"   <font ss:fontname=""calibri"" x:family=""swiss"" ss:size=""14"" ss:color=""#000000""{0} ", environment.newline);     sb.appendformat(@"    ss:bold=""1""/>{0}", environment.newline);      sb.appendformat(@"  </style>{0}", environment.newline);      sb.appendformat(@"  <style ss:id=""s65"">{0}", environment.newline);            sb.appendformat(@"   <ss:borders>{0}", environment.newline);     sb.appendformat(@"   <ss:border ss:position=""bottom"" ss:linestyle=""continuous"" ss:weight=""1"" />{0}",environment.newline);     sb.appendformat(@"   <ss:border ss:position=""top"" ss:linestyle=""continuous"" ss:weight=""1"" />{0}", environment.newline);     sb.appendformat(@"   <ss:border ss:position=""left"" ss:linestyle=""continuous"" ss:weight=""1"" />{0}",environment.newline);     sb.appendformat(@"   <ss:border ss:position=""right"" ss:linestyle=""continuous"" ss:weight=""1"" />{0}", environment.newline);     sb.appendformat(@"   </ss:borders>{0}", environment.newline);           sb.appendformat(@"   <font ss:fontname=""calibri"" x:family=""swiss"" ss:size=""12"" ss:color=""#2e2efe""{0} ", environment.newline);            sb.appendformat(@"    ss:bold=""1""/>{0}", environment.newline);            sb.appendformat(@"  </style>{0}", environment.newline);       sb.appendformat(@"  <style ss:id=""s63"">{0}", environment.newline);     sb.appendformat(@"   <numberformat ss:format=""short date""/>{0}", environment.newline);     sb.appendformat(@"  </style>{0}", environment.newline);     sb.appendformat(@" </styles>{0}", environment.newline);     sb.append(@"{0}\r\n</workbook>");     return sb.tostring();

can me so..

i think late maybe got solution this. still giving solution working fine me.

for adding background use below code:-

        sb.appendformat(@"  <style ss:id=""backgroundyellow"">{0}", environment.newline);          sb.appendformat(@"   <interior  ss:color= ""#008000"" ss:pattern=""solid"" />{0}", environment.newline);          sb.appendformat(@"  </style>{0}", environment.newline);

you have missed tag ss:pattern=""solid""


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