vue+element el-table拉动每列的宽度，并保存到cookie里

╰+攻爆jí腚メ 2022-10-28 15:27 4阅读 0赞

1.在表格上写@header-dragend=“surverWidth”

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyOTYzODQx_size_16_color_FFFFFF_t_70][]

2.表头造成数组

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyOTYzODQx_size_16_color_FFFFFF_t_70 1][]

获取cookies里的数据

![2021020711055081.png][]

surverWidth(newWidth, oldWidth, column, event){
                setTimeout(() => {
                    // console.log(newWidth, oldWidth, column, event)
                    var applyTableColWidths = []
                    var applyTable = document.getElementById('applyTable')
                    var applyTableColgroup = applyTable.getElementsByTagName('colgroup')[0]
                    var applyTableCol = applyTableColgroup.getElementsByTagName('col')
                    for (var i = 0; i < applyTableCol.length; i++) {
                        applyTableColWidths.push(applyTableCol[i].width)
                    }
                    // console.log(applyTableColWidths)
                    // localStorage.setItem('applyTableColWidths', JSON.stringify(applyTableColWidths))
                    this.setCookie('applyTableColWidths',JSON.stringify(applyTableColWidths),30)把对应每列的数组宽度存到cookie里
                }, 100)
            },
            getTableColWidth () {
                var self = this
                var tableWidth =self.getCookie('applyTableColWidths')
                if (tableWidth) {
                    for (var item = 0; item < self.tableColumn.length; item++) {
                            self.tableColumn[item].width = JSON.parse(tableWidth)[item]
                        }
                }
            },
            setCookie: function (cname, cvalue, exdays) {
                var d = new Date();
                d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
                var expires = 'expires=' + d.toUTCString();
                document.cookie = cname + '=' + cvalue + "; " + expires;
            },
            getCookie: function (cname) {
                var name = cname + '=';
                var ca = document.cookie.split(';');
                for (var i = 0; i < ca.length; i++) {
                   var str=ca[i].split('=')
                   if (str[0].trim() === 'applyTableColWidths') {
                        return str[1];
                    }
                }
                return ""
            },

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyOTYzODQx_size_16_color_FFFFFF_t_70]: /images/20221024/504a06a1201b4ee6b939a4a5628d2f91.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyOTYzODQx_size_16_color_FFFFFF_t_70 1]: /images/20221024/7143f6341156480aa02409d7950bd732.png
[2021020711055081.png]: /images/20221024/f5b21bf8b73a420798296c7d4873e08e.png