fix last column resize bug when no data

[hxsf]

If a table has heigth and last column is auto width

let width = ''
// is_last_column, true && top_always_true && height_set_by_user, true
if ( this.columns.length === index + 1 && top && this.$parent.bodyHeight !== 0) {
    // width will be 0 + this.$parent.scrollBarWidth === this.$parent.scrollBarWidth
    // so last column will be 10~20px(the width of scrollBar)
}

there is an example with iview@2.8.0

• gist
• demo on jsbin

[icarusion]

Can you elaborate on this bug? I didn't see any problems with my Chrome.

[hxsf]

1. follow this link: demo on jsbin
2. click the button
3. the table last column's width will be 17px

[icarusion]

it work good here

[cys85]

iview@2.8.0 我也发现了这个问题，无数据、有height，columns 最后一个不定宽的情况下 会出现这个问题

[hxsf]

My env: chrome v63.0.3239.132, windows and macOS also has this problem.

[icarusion]

@hxsf Mac Chrome 63, 你的在线示例在我这里运行一切正常。

[hxsf]

@icarusion

• 左边是 canary 版
• 右侧是 stable 版
• macOS 10.12
• 出问题的时候 body 不会显示 “暂无数据”
• firefox dev 最后一列消失。

[hxsf]

@icarusion Maybe we can use browserling to test this.

[hxsf]

@icarusion 我好像知道为什么你的正常的了，再次看你的图片，我发现你的滚动条会自动隐藏，所以 width(是'') + '' 还是 '' 所以你的浏览器中显示是正常的。

你是否安装了某些 chrome 插件来隐藏滚动条？

[icarusion]

will check

[icarusion]

Thanks for your pr!