固定使用 pdfmake.js 每页的行数

Question

使用 pdfmake.js 定义了自己的表格布局。在打印时，我希望每页包含 7 行(固定(。我尝试调整表格单元格的高度和宽度以包含 7 行，但是如果表格单元格中的数据增加，页面累积的行数更少/更多。

表格布局：

var tablelist={
style: 'tableExample',
table: {
dontBreakRows: true,
widths: [ 20,55,55,55,55,55,55,55,55,55,55,55,55],
headerRows: 1,
body: body
},
layout: {
hLineWidth: function (i, node) {
return (i === 0 || i === node.table.body.length) ? 1 : 1;
},
vLineWidth: function (i, node) {
return (i === 0 || i === node.table.widths.length) ? 1: 1;
},
hLineColor: function (i, node) {
return (i === 0 || i === node.table.body.length) ? 'gray' : 'gray';
},
vLineColor: function (i, node) {
return (i === 0 || i === node.table.widths.length) ? 'gray' : 'gray';
},
},
}
return tablelist;
}

将表头和其他数据推送到表体

$scope.makePrintTable = function(){
var headers = {
col_1:{ text: 'Day', style: 'tableHeader',rowSpan: 1, alignment: 'center',margin: [0, 8, 0, 0] },
col_2:{ text: 'Date', style: 'tableHeader',rowSpan: 1, alignment: 'center',margin: [0, 8, 0, 0] },
col_3:{ text: '0600-0800', style: 'tableHeader',rowSpan: 1, alignment: 'center',margin: [0, 8, 0, 0] },
.
.
.//Similarly till col_13
col_13:{ text: '1700-1800', style: 'tableHeader',rowSpan: 1, alignment: 'center' ,margin: [0, 8, 0, 0]},
}
body = [];
var row = new Array();
for (var key in headers) {
row.push( headers[key] );   
}
body.push(row);

for ( var j=0 ; j< $scope.table.length; j++){
var tableEach={ };
tableEach= $scope.table[j];
/*This for Genarating Object variables*/
for (var i = 1; i < 3; i++) { 
window["obj"+i] = new Object();
}
var row = new Array();
var slNoValue = tableEach.slNo;
/*This is for slNo  */
obj1["text"] = slNoValue;
obj1["style"]= "cellswidth"; 
row.push(obj1);
/*This is for Date  */
var dateValue = new Date(tableEach.date);
obj2["text"]= dateValue.getDate() + '-' + basicFormats.getMonthName(dateValue.getMonth() )+ '-' + dateValue.getFullYear()+','+ basicFormats.getDayName(dateValue.getDay());
obj2["style"]= "cellswidth";
row.push(obj2);
/*This is for remaining columns (i ranges from 6 to 17 (time in 24hrs clock format) )  */
for(var i=6 ; i<=17 ; i++){
var obj={};
var hourValue = "hour_"+i+"_"+(i+1)+"_value";
var hourValueColor = "hour_"+i+"_"+(i+1)+"_"+"color_value";
hourValue = ( tableEach["hour_"+i] == undefined ? '':(tableEach["hour_"+i]));
hourValueColor =(tableEach["hour_"+i+"_colour"] == undefined ? '#ffffff':(tableEach["hour_"+i+"_colour"]));
obj["text"] = hourValue;
obj["fillColor"] = hourValueColor;
obj["style"] = "cellswidth";
row.push(obj);
console.log(obj);
}
//  if( j!= 0 && j % 7 == 0){
//   pageBreak : 'before'
//  }
} 
body.push(row); 

}

};

表格单元格的 CSS

cellswidth  : {
fontSize: 10,
// color:'gray',
bold: true,
alignment: 'center',
margin: [0, 12.55, 0, 12.75],
},

Answer 1

你可以使用pageBreak函数：

pageBreakBefore: function(currentNode, followingNodesOnPage, nodesOnNextPage, previousNodesOnPage) {
//Here you can change the criteria according to your requirements
if (currentNode.index % 7 === 0)) {
return true;
}
return false;
},