create dynamic table in powerpoint using openXML with c# and ASP.net -

i have used these links , got working code can use template report(containing placeolders) , generate new pptx report data database. have 4 more placeholders need populate 4 different data tables. using template create new slide , replacing placeholder text tables couldn't figure out. able generate table using below code not in placeholder's location. table appear in center of screen.

links used: https://blogs.msdn.microsoft.com/brian_jones/2008/11/18/creating-a-presentation-report-based-on-data/

https://code.msdn.microsoft.com/office/how-to-add-a-table-with-03578dde

call button click event:

 using (presentationdocument presentationdocument = presentationdocument.open(slidename, true))             {                 //get first slide presentation                 slidepart intitalslide = presentationdocument.presentationpart.slideparts.first();                 addnewslide(presentationdocument, intitalslide, 1045);             } 

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 private void addnewslide(presentationdocument presentationdocument, slidepart _slidetemplate, int projectid)     {         presentationpart parent = presentationdocument.presentationpart;          system.data.datatable dt = getvalueforpptreport(projectid);          var newslidepart = parent.addnewpart<slidepart>("newslide1");          //copy contents of template slide new slide , attach appropriate layout         newslidepart.feeddata(_slidetemplate.getstream(filemode.open));         newslidepart.addpart(_slidetemplate.slidelayoutpart, _slidetemplate.getidofpart(_slidetemplate.slidelayoutpart));          //alter placeholder text in new slide         setplaceholder(newslidepart, "txtprojectidname", dt.rows[0]["projname"].tostring());         setplaceholder(newslidepart, "txtprojtype", dt.rows[0]["proj_type"].tostring());         setplaceholder(newslidepart, "txtprobst", dt.rows[0]["proj_problem_state"].tostring());         setplaceholder(newslidepart, "txtgoal", dt.rows[0]["proj_goal_obj"].tostring());         setplaceholder(newslidepart, "txtinscope", dt.rows[0]["proj_in_scope"].tostring());         setplaceholder(newslidepart, "txtoutofscope", dt.rows[0]["proj_out_scope"].tostring());         setplaceholder(newslidepart, "txtcustomer", dt.rows[0]["proj_who_customer"].tostring());         setplaceholder(newslidepart, "txtctq", dt.rows[0]["proj_critical_to_qlty"].tostring());         setplaceholder(newslidepart, "txtdefect", dt.rows[0]["proj_what_defect"].tostring());         setplaceholder(newslidepart, "txtdate", system.datetime.now.tostring("mm/dd/yyyy hh:mm"));          //add tables here         //tblxbenefit         system.data.datatable dtxb = getvalueforpptreportbenefit(1045);         string placeholder = "tblxbenefit";         list<d.text> textlistexif1 = newslidepart.slide.descendants<d.text>().where(t => t.text.equals(placeholder)).tolist();         if (textlistexif1.count == 1)         {          }          list<openxmlelement> elements = new list<openxmlelement>();         elements.add(new p.nonvisualgraphicframeproperties             (new p.nonvisualdrawingproperties() { id = 1, name = "xyz" }, new p.nonvisualgraphicframedrawingproperties(), new applicationnonvisualdrawingproperties()));          // declare , instantiate graphic frame of new slide          p.graphicframe graphicframe = newslidepart.slide.commonslidedata.shapetree.appendchild(new p.graphicframe());          // specify required frame properties of graphicframe          applicationnonvisualdrawingpropertiesextension applicationnonvisualdrawingpropertiesextension = new applicationnonvisualdrawingpropertiesextension() { uri = "{d42a27db-bd31-4b8c-83a1-f6eecf244321}" };         p14.modificationid modificationid1 = new p14.modificationid() { val = 3229994563u };         modificationid1.addnamespacedeclaration("p14", "http://schemas.microsoft.com/office/powerpoint/2010/main");         applicationnonvisualdrawingpropertiesextension.append(modificationid1);         graphicframe.nonvisualgraphicframeproperties = new p.nonvisualgraphicframeproperties         (new d.nonvisualdrawingproperties() { id = 5, name = "table 1" },         new d.nonvisualgraphicframedrawingproperties(new d.graphicframelocks() { nogrouping = true }),         new applicationnonvisualdrawingproperties(new applicationnonvisualdrawingpropertiesextensionlist(applicationnonvisualdrawingpropertiesextension)));           graphicframe.transform = new transform(new d.offset() { x = 1650609l, y = 4343400l }, new d.extents() { cx = 6096000l, cy = 741680l });          // specify griaphic of graphic frame          graphicframe.graphic = new d.graphic(new d.graphicdata(generatetable()) { uri = "http://schemas.openxmlformats.org/drawingml/2006/table" });          //save changes slide         newslidepart.slide.save();          //need assign id new slide , add slideidlist         //first figure out largest existing id         documentformat.openxml.presentation.slideidlist slideidlist = parent.presentation.slideidlist;         uint maxslideid = 1;          foreach (documentformat.openxml.presentation.slideid slideid in slideidlist.childelements)         {             if (slideid.id > maxslideid) maxslideid = slideid.id;         }          //assign id , add new slide @ end of list         documentformat.openxml.presentation.slideid newslideid = new documentformat.openxml.presentation.slideid { id = ++maxslideid, relationshipid = parent.getidofpart(newslidepart) };         slideidlist.append(newslideid);          //delete first template slide          slideid tempslideid = slideidlist.childelements[0] slideid;         slideidlist.removechild(tempslideid);     }     private void setplaceholder(slidepart slidepart, string placeholder, string value)     {         list<d.text> textlistexif1 = slidepart.slide.descendants<d.text>().where(t => t.text.equals(placeholder)).tolist();         foreach (d.text text in textlistexif1)         {             text.text = value;         }     }      #region tables       /// <summary>      /// generate table below order:      /// a:tbl(table) ->a:tr(tablerow)->a:tc(tablecell)      /// can return tablecell object createtextcell method      /// , append tablecell object tablerow       /// </summary>      /// <returns>table object</returns>      private static d.table generatetable()     {         string[,] tablesources = new string[,] { { "name", "age" }, { "tom", "25" } };          // declare , instantiate table           d.table table = new d.table();           // specify required table properties table          d.tableproperties tableproperties = new d.tableproperties() { firstrow = true, bandrow = true };         d.tablestyleid tablestyleid = new d.tablestyleid();         tablestyleid.text = "{5c22544a-7ee6-4342-b048-85bdc9fd1c3a}";           tableproperties.append(tablestyleid);           // declare , instantiate tablegrid , colums          d.tablegrid tablegrid1 = new d.tablegrid();         d.gridcolumn gridcolumn1 = new d.gridcolumn() { width = 3048000l };         d.gridcolumn gridcolumn2 = new d.gridcolumn() { width = 3048000l };           tablegrid1.append(gridcolumn1);         tablegrid1.append(gridcolumn2);         table.append(tableproperties);         table.append(tablegrid1);         (int row = 0; row < tablesources.getlength(0); row++)         {             // instantiate table row              d.tablerow tablerow = new d.tablerow() { height = 370840l };             (int column = 0; column < tablesources.getlength(1); column++)             {                 tablerow.append(createtextcell(tablesources.getvalue(row, column).tostring()));             }               table.append(tablerow);         }         return table;     }       /// <summary>      /// create table cell below order:      /// a:tc(tablecell)->a:txbody(textbody)->a:p(paragraph)->a:r(run)->a:t(text)      /// </summary>      /// <param name="text">inserted text in cell</param>      /// <returns>return tablecell object</returns>      private static d.tablecell createtextcell(string text)     {         if (string.isnullorempty(text))         {             text = string.empty;         }          // declare , instantiate table cell           // create table cell below order:          // a:tc(tablecell)->a:txbody(textbody)->a:p(paragraph)->a:r(run)->a:t(text)          d.tablecell tablecell = new d.tablecell();           //  declare , instantiate text body          d.textbody textbody = new d.textbody();         d.bodyproperties bodyproperties = new d.bodyproperties();         d.liststyle liststyle = new d.liststyle();           d.paragraph paragraph = new d.paragraph();         d.run run = new d.run();         d.runproperties runproperties = new d.runproperties() { language = "en-us", dirty = false };         d.text text2 = new d.text();         text2.text = text;         run.append(runproperties);         run.append(text2);         d.endparagraphrunproperties endparagraphrunproperties = new d.endparagraphrunproperties() { language = "en-us", dirty = false };           paragraph.append(run);         paragraph.append(endparagraphrunproperties);         textbody.append(bodyproperties);         textbody.append(liststyle);         textbody.append(paragraph);           d.tablecellproperties tablecellproperties = new d.tablecellproperties();         tablecell.append(textbody);         tablecell.append(tablecellproperties);           return tablecell;     }       #endregion 

okay, can place table @ location want changing values in this.. x , y.. not sure cx , cy values does. works

graphicframe.transform = new transform(new d.offset() { x = 1650609l, y = 4343400l }, new d.extents() { cx = 6096000l, cy = 741680l }); 

but new issue unable reduce font , table row height. tried changing values nothing works. post here when find out.

 d.tablerow tablerow = new d.tablerow() { height = 370840l };