javascript - Yii2 表格缩放列宽，页面刷新后保持不变怎么实现？

1、Yii2 DynaGrid插件生成的列表可以手动拖动每一列的宽度，但是拖动之后怎么保存？使刷新页面后还是刚才拖动停止的宽度。

主要代码如下：（由rc-table-resizing与rc-column-resizing这两class控制）

注释：以下是源码，不能改动，要重写。

<code> ResizableColumns.prototype.pointerdown = function(e) {
      var $currentGrip, $leftColumn, $ownerDocument, $rightColumn, newWidths, startPosition, widths;
      e.preventDefault();
      $ownerDocument = $(e.currentTarget.ownerDocument);
      startPosition = pointerX(e);
      $currentGrip = $(e.currentTarget);
      $leftColumn = $currentGrip.data('th');
      $rightColumn = this.$tableHeaders.eq(this.$tableHeaders.index($leftColumn) + 1);
      widths = {
        left: parseWidth($leftColumn[0]),
        right: parseWidth($rightColumn[0])
      };
      newWidths = {
        left: widths.left,
        right: widths.right
      };
      this.$handleContainer.add(this.$table).addClass('rc-table-resizing');
      $leftColumn.add($rightColumn).add($currentGrip).addClass('rc-column-resizing');
      this.triggerEvent('column:resize:start', [$leftColumn, $rightColumn, newWidths.left, newWidths.right], e);
      $ownerDocument.on('mousemove.rc touchmove.rc', (function(_this) {
        return function(e) {
          var difference;
          difference = (pointerX(e) - startPosition) / _this.$table.width() * 100;
          setWidth($leftColumn[0], newWidths.left = _this.constrainWidth(widths.left + difference));
          setWidth($rightColumn[0], newWidths.right = _this.constrainWidth(widths.right - difference));
          if (_this.options.syncHandlers != null) {
            _this.syncHandleWidths();
          }
          return _this.triggerEvent('column:resize', [$leftColumn, $rightColumn, newWidths.left, newWidths.right], e);
        };
      })(this));
      return $ownerDocument.one('mouseup touchend', (function(_this) {
        return function() {
          $ownerDocument.off('mousemove.rc touchmove.rc');
          _this.$handleContainer.add(_this.$table).removeClass('rc-table-resizing');
          $leftColumn.add($rightColumn).add($currentGrip).removeClass('rc-column-resizing');
          _this.syncHandleWidths();
          _this.saveColumnWidths();
          return _this.triggerEvent('column:resize:stop', [$leftColumn, $rightColumn, newWidths.left, newWidths.right], e);
        };
      })(this));
    };

    return ResizableColumns;

  })();</code>

回复内容：

1、Yii2 DynaGrid插件生成的列表可以手动拖动每一列的宽度，但是拖动之后怎么保存？使刷新页面后还是刚才拖动停止的宽度。

主要代码如下：（由rc-table-resizing与rc-column-resizing这两class控制）

注释：以下是源码，不能改动，要重写。

<code> ResizableColumns.prototype.pointerdown = function(e) {
      var $currentGrip, $leftColumn, $ownerDocument, $rightColumn, newWidths, startPosition, widths;
      e.preventDefault();
      $ownerDocument = $(e.currentTarget.ownerDocument);
      startPosition = pointerX(e);
      $currentGrip = $(e.currentTarget);
      $leftColumn = $currentGrip.data('th');
      $rightColumn = this.$tableHeaders.eq(this.$tableHeaders.index($leftColumn) + 1);
      widths = {
        left: parseWidth($leftColumn[0]),
        right: parseWidth($rightColumn[0])
      };
      newWidths = {
        left: widths.left,
        right: widths.right
      };
      this.$handleContainer.add(this.$table).addClass('rc-table-resizing');
      $leftColumn.add($rightColumn).add($currentGrip).addClass('rc-column-resizing');
      this.triggerEvent('column:resize:start', [$leftColumn, $rightColumn, newWidths.left, newWidths.right], e);
      $ownerDocument.on('mousemove.rc touchmove.rc', (function(_this) {
        return function(e) {
          var difference;
          difference = (pointerX(e) - startPosition) / _this.$table.width() * 100;
          setWidth($leftColumn[0], newWidths.left = _this.constrainWidth(widths.left + difference));
          setWidth($rightColumn[0], newWidths.right = _this.constrainWidth(widths.right - difference));
          if (_this.options.syncHandlers != null) {
            _this.syncHandleWidths();
          }
          return _this.triggerEvent('column:resize', [$leftColumn, $rightColumn, newWidths.left, newWidths.right], e);
        };
      })(this));
      return $ownerDocument.one('mouseup touchend', (function(_this) {
        return function() {
          $ownerDocument.off('mousemove.rc touchmove.rc');
          _this.$handleContainer.add(_this.$table).removeClass('rc-table-resizing');
          $leftColumn.add($rightColumn).add($currentGrip).removeClass('rc-column-resizing');
          _this.syncHandleWidths();
          _this.saveColumnWidths();
          return _this.triggerEvent('column:resize:stop', [$leftColumn, $rightColumn, newWidths.left, newWidths.right], e);
        };
      })(this));
    };

    return ResizableColumns;

  })();</code>

这是css控制的，你可以设置一个session，保存下你的列表的宽度，刷新的时候，就可以用js赋值给css就可以了。

楼上说的没错呢