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Updating Data in Google Visualization DataTable

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问题 How do you update data in a google visualization datatable? Example: var data = new google.visualization.DataTable(); data.addColumn('string', 'Name'); data.addColumn('string', 'Occupation'); data.addRow(['Bob', 'Shoe Wearer']); data.addRow(['Henry', 'Transformer']); data.addRow(['Betty', 'Seltzer Connoisseur']); // Time passes and Bob changes jobs: data.addRow(['Bob', 'Beach Comber']); Of course, that adds a new row and now I have two Bobs. How can I update Bob's occupation? 回答1: As Bob is

Google Visualization Column Chart specify Target line as Certainty role

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问题 When i put this below code i came with on visualization playground i get the Goal/Target line, but i want it to be dashed/dotted which requires certainty role as specified in the docs. Can anyone enlighten me how to do it with a array input to Google Datatable, or Datatable json string format Code function drawVisualization() { // Create and populate the data table. var data = google.visualization.arrayToDataTable([ ['Year', 'Red', 'Yellow', 'Green','Target'], ['2003', 20, 0, 0,80], ['2004',

Updating Data in Google Visualization DataTable

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How do you update data in a google visualization datatable? Example: var data = new google.visualization.DataTable(); data.addColumn('string', 'Name'); data.addColumn('string', 'Occupation'); data.addRow(['Bob', 'Shoe Wearer']); data.addRow(['Henry', 'Transformer']); data.addRow(['Betty', 'Seltzer Connoisseur']); // Time passes and Bob changes jobs: data.addRow(['Bob', 'Beach Comber']); Of course, that adds a new row and now I have two Bobs. How can I update Bob's occupation? HansMaulwurf As Bob is the first row you inserted, his occupation resides in row with index 0 and column with index 1: