如何使用Java在Selenium WebDriver中获取webtable中的确切行数

Question

如何使用Java在webdriver中使用xpath获取webtable中的确切行数。使用下面的xpath我也可以使用标头计数。我不希望计数包括标题行并得到网表的计数。

//table[@id='ctl00_MasterPlaceHolder_GrdHistory']/tbody/tr

HTML代码：

<table id="ctl00_MasterPlaceHolder_GrdHistory" cellspacing="2" cellpadding="0" border="0" style="color:#333333;width:100%;">
<tbody>
<tr style="color:Black;background-color:#DFC065;font-weight:bold;">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;"   onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$0')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$1')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$2')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$3')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$4')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$5')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$6')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$7')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$8')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;"  onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$9')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$10')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$11')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$12')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color: rgb(251, 247, 234); text-decoration: none;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$13')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color:#FBF7EA;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$14')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">
<tr style="background-color:#FBF7EA;" onclick="javascript:__doPostBack('ctl00$MasterPlaceHolder$GrdHistory','Select$15')" onmouseout="javascript:setMouseOutColor(this);" onmouseover="javascript:setMouseOverColor(this);">

这是可能的，如果是这样，那么如何在不包括计数中的标题行的情况下获得计数。请帮帮我。将不胜感激。

Answer 1

使用xpath下方排除第一行（标题）

//table[@id='ctl00_MasterPlaceHolder_GrdHistory']/tbody/tr[position()>1]

Answer 2

我建议：

 count(table[@id="ctl00_MasterPlaceHolder_GrdHistory"]/tbody/tr) - 1

Answer 3

试试这段代码：

int count = (driver.findElements(By.xpath("//table[@id='ctl00_MasterPlaceHolder_GrdHistory']/tbody/tr")).size()) - 1;