The realization of the serial number self-increment in ExtJs grid paging

ExtJs grid paging, by default, the ordinal number of each page is starting from 1, which is often not in line with our habits. This realizes the automatic increment of the ordinal number.

First look at the effect of the picture:

The implementation steps are as follows:

1, define global variables.

var record_start = 0;

2, the definition of the columns part of the grid.

columns　:　[new　Ext.grid.RowNumberer({
　　 header　:　"序号",
　　 width　:　40,
　　 renderer:function(value,metadata,record,rowIndex){
　　　 return　record_start　+　1　+　rowIndex;
　　 }
　 }),　{
　　 header　:　"项目编号",
　　 width　:　50,
　　 sortable　:　false,
　　 dataIndex　:　"projectNumber"
　 },　{
　　 header　:　"项目名称",
　　 sortable　:　false,
　　 dataIndex　:　"psName"
　 },　{
　　 header　:　"基站名",
　　 sortable　:　false,
　　 dataIndex　:　"psSiteName"
　 }]