https://community.esri.com/t5/arcobjects-sdk-questions/classbreaksrenderer-graduated-symbols/m-p/1068804#M20327 <P>Assigning the Quantities - Graduated Symbols for one field. The TOC is showing an updated symbolize but not in the UI shown in the attached snapshot.&nbsp;</P><LI-CODE lang="c">IClassBreaksRenderer classBreaksRenderer = new ClassBreaksRendererClass(); classBreaksRenderer.Field = "BRNGTRUE"; classBreaksRenderer.BreakCount = classCount; classBreaksRenderer.MinimumBreak = classBreaks[0]; classBreaksRenderer.SortClassesAscending = true; IClassBreaksUIProperties classBreaksUIProperties = classBreaksRenderer as IClassBreaksUIProperties; classBreaksUIProperties.Method = pClassifyGEN.ClassID; ISymbol simpleMarkerSymbol = GetMarkerSymbol(); IFillSymbol fillSymbol = GetFillSymbol() as IFillSymbol; classBreaksRenderer.BackgroundSymbol = fillSymbol; //Through a loop, attach rendering symbol to all rendered levels for (int i = 0; i &lt; classCount; i++) { ////Specify the symbol for hierarchical rendering (Symbol) classBreaksRenderer.Symbol[i] = simpleMarkerSymbol; classBreaksRenderer.Break[i] = classBreaks[i]; if (i == 0) { classBreaksUIProperties.LowBreak[i] = classBreaks[i]; classBreaksRenderer.Label[i] = string.Format("{0}", classBreaks[i]); } else { classBreaksUIProperties.LowBreak[i] = classBreaks[i - 1] + 0.000001; classBreaksRenderer.Label[i] = string.Format("{0} - {1}", classBreaks[i - 1] + 0.000001, classBreaks[i] + 0.000000); } }</LI-CODE><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="sonj_0-1623838035582.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/16075iBE6B2B6C2478FCD1/image-size/medium?v=v2&amp;px=400" role="button" title="sonj_0-1623838035582.png" alt="sonj_0-1623838035582.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Wed, 16 Jun 2021 10:08:14 GMT sonj 2021-06-16T10:08:14Z https://community.esri.com/t5/arcobjects-sdk-questions/classbreaksrenderer-graduated-symbols/m-p/1068804#M20327 <P>Assigning the Quantities - Graduated Symbols for one field. The TOC is showing an updated symbolize but not in the UI shown in the attached snapshot.&nbsp;</P><LI-CODE lang="c">IClassBreaksRenderer classBreaksRenderer = new ClassBreaksRendererClass(); classBreaksRenderer.Field = "BRNGTRUE"; classBreaksRenderer.BreakCount = classCount; classBreaksRenderer.MinimumBreak = classBreaks[0]; classBreaksRenderer.SortClassesAscending = true; IClassBreaksUIProperties classBreaksUIProperties = classBreaksRenderer as IClassBreaksUIProperties; classBreaksUIProperties.Method = pClassifyGEN.ClassID; ISymbol simpleMarkerSymbol = GetMarkerSymbol(); IFillSymbol fillSymbol = GetFillSymbol() as IFillSymbol; classBreaksRenderer.BackgroundSymbol = fillSymbol; //Through a loop, attach rendering symbol to all rendered levels for (int i = 0; i &lt; classCount; i++) { ////Specify the symbol for hierarchical rendering (Symbol) classBreaksRenderer.Symbol[i] = simpleMarkerSymbol; classBreaksRenderer.Break[i] = classBreaks[i]; if (i == 0) { classBreaksUIProperties.LowBreak[i] = classBreaks[i]; classBreaksRenderer.Label[i] = string.Format("{0}", classBreaks[i]); } else { classBreaksUIProperties.LowBreak[i] = classBreaks[i - 1] + 0.000001; classBreaksRenderer.Label[i] = string.Format("{0} - {1}", classBreaks[i - 1] + 0.000001, classBreaks[i] + 0.000000); } }</LI-CODE><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="sonj_0-1623838035582.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/16075iBE6B2B6C2478FCD1/image-size/medium?v=v2&amp;px=400" role="button" title="sonj_0-1623838035582.png" alt="sonj_0-1623838035582.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Wed, 16 Jun 2021 10:08:14 GMT https://community.esri.com/t5/arcobjects-sdk-questions/classbreaksrenderer-graduated-symbols/m-p/1068804#M20327 sonj 2021-06-16T10:08:14Z https://community.esri.com/t5/arcobjects-sdk-questions/classbreaksrenderer-graduated-symbols/m-p/1069230#M20328 <P>The Legend Info has to update then it will display the symbols correctly. Posting it here may help someone who is looking code snippet.</P><LI-CODE lang="c">ILegendInfo legendInfo = classBreaksRenderer as ILegendInfo; legendInfo.SymbolsAreGraduated = true;</LI-CODE><P>&nbsp;</P> Thu, 17 Jun 2021 06:19:17 GMT https://community.esri.com/t5/arcobjects-sdk-questions/classbreaksrenderer-graduated-symbols/m-p/1069230#M20328 sonj 2021-06-17T06:19:17Z