C#Watin返回的TD数据为空

我正在使用Watin从密码同步页面检索数据。我希望返回值。如果值为&nbsp（在HTML代码中）。

但我得到了其他更意想不到的

{string[4, 4]}
[0, 0] = null
[0, 1] = "MAINFRAME"
[0, 2] = "DOMAIN"
[0, 3] = "WebClient"
[1, 0] = null
[1, 1] = "INTERNALID"
[1, 2] = "FIRSTNAME.LASTNAME"
[1, 3] = "INTERNALID"
[2, 0] = null
[2, 1] = "Yes"
[2, 2] = "Yes"
[2, 3] = "Yes"
[3, 0] = null
[3, 1] = ""
[3, 2] = ""
[3, 3] = ""

HTML代码看起来像

<TABLE WIDTH="100%" CELLSPACING=0 CELLPADDING=5 BORDER=0 class="TABLEBORDER">
<TR>
<TH class=HEADTEXT>
Target
</TH>
<TH class=HEADTEXT>
Trigger<br>enabled?
</TH>
<TH class=HEADTEXT>
Account
</TH>
<TH class=HEADTEXT>
Password<br>changed?
</TH>
<TH class=HEADTEXT>
Error message<br>(if any)
</TH>
<!-- S_STATUS_ROW -->
<TR>
<TD valign=top class=CELLTEXT>
MAINFRAME
</TD>
<TD valign=top class=CELLTEXT>
No
</TD>
<TD valign=top class=CELLTEXT>
INTERNALID
</TD>
<TD valign=top class=CELLTEXT>
Yes
</TD>
<TD valign=top class=CELLTEXT>
&nbsp;
</TD>
<!-- S_STATUS_ROW -->
<TR>
<TD valign=top class=CELLTEXT>
DOMAIN
</TD>
<TD valign=top class=CELLTEXT>
No
</TD>
<TD valign=top class=CELLTEXT>
FIRSTNAME.LASTNAME
</TD>
<TD valign=top class=CELLTEXT>
Yes
</TD>
<TD valign=top class=CELLTEXT>
&nbsp;
</TD>
<!-- S_STATUS_ROW -->
<TR>
<TD valign=top class=CELLTEXT>
WebClient
</TD>
<TD valign=top class=CELLTEXT>
No
</TD>
<TD valign=top class=CELLTEXT>
INTERNALID
</TD>
<TD valign=top class=CELLTEXT>
Yes
</TD>
<TD valign=top class=CELLTEXT>
&nbsp;
</TD>
<!-- S_STATUS_CONTENT_BOTTOM -->
</TABLE>

最后是有问题的C#代码。

        String path = "http://localhost/cgi.exe?ID=" + userName;
        Int32 startingRow = 1;
        using (var browser = new IE(path)) 
        {
            try
            {
                browser.Image(Find.ByAlt("Use a password")).Click();
                browser.TextField(Find.ByName("_MYPW")).TypeText(privateCurrentPassword);
                browser.Image(Find.ByAlt("Verify password")).Click();
                browser.Link(Find.ByTitle("Change passwords")).Click();
                browser.TextField(Find.ByName("_NEWP1")).TypeText(privateNewPassword);
                browser.TextField(Find.ByName("_NEWP2")).TypeText(privateNewPassword);
                browser.Image(Find.ByName("SUBMIT-CHANGE")).Click();
                Table table = browser.Table(Find.ByClass("TABLEBORDER"));
                Int32 numberOfColumn = table.TableRows[startingRow].TableCells.Count;
                Int32 currentRow = startingRow;
                td1stcolumn = new String[table.OwnTableRows.Count];
                td2ndcolumn = new String[table.OwnTableRows.Count];
                td3rdcolumn = new String[table.OwnTableRows.Count];
                td4thcolumn = new String[table.OwnTableRows.Count];
                for (int i = 1; i < table.OwnTableRows.Count; i++)
                {
                    td1stcolumn[i] = table.OwnTableRows[i].TableCells[0].Text.Trim();
                    td2ndcolumn[i] = table.OwnTableRows[i].TableCells[2].Text.Trim();
                    td3rdcolumn[i] = table.OwnTableRows[i].TableCells[3].Text.Trim();
                    td4thcolumn[i] = table.OwnTableRows[i].TableCells[4].Text.Trim();
                }
                String[,] arrayOfStrings = new String[4,td1stcolumn.Length];
                for(int j = 0; j < td1stcolumn.Length; j++)
                {
                    arrayOfStrings[0,j] = td1stcolumn[j];
                    arrayOfStrings[1,j] = td2ndcolumn[j];
                    arrayOfStrings[2,j] = td3rdcolumn[j];
                    arrayOfStrings[3,j] = td4thcolumn[j];
                }
                string resultDialogString = ResultDialog.ShowBox(arrayOfStrings, "Result Page", passwordTextBox.Text.ToString().Trim());
            }
            catch (ElementNotFoundException enfe)
            {
                String error = enfe.Message.ToString();
                browser.TextField(Find.ByName("_MYPW")).TypeText(privateCurrentPassword);
                browser.Image(Find.ByAlt("Verify password")).Click();
                browser.Link(Find.ByTitle("Change passwords")).Click();
                browser.TextField(Find.ByName("_NEWP1")).TypeText(privateNewPassword);
                browser.TextField(Find.ByName("_NEWP2")).TypeText(privateNewPassword);
                browser.Image(Find.ByName("SUBMIT-CHANGE")).Click();
                Table table = browser.Table(Find.ByClass("TABLEBORDER"));
                Int32 numberOfColumn = table.TableRows[startingRow].TableCells.Count;
                Int32 currentRow = startingRow;
                td1stcolumn = new String[table.OwnTableRows.Count];
                td2ndcolumn = new String[table.OwnTableRows.Count];
                td3rdcolumn = new String[table.OwnTableRows.Count];
                td4thcolumn = new String[table.OwnTableRows.Count];
                for (int i = 1; i < table.OwnTableRows.Count; i++)
                {
                    td1stcolumn[i] = table.OwnTableRows[i].TableCells[0].Text.Trim();
                    td2ndcolumn[i] = table.OwnTableRows[i].TableCells[2].Text.Trim();
                    td3rdcolumn[i] = table.OwnTableRows[i].TableCells[3].Text.Trim();
                    td4thcolumn[i] = table.OwnTableRows[i].TableCells[4].Text.Trim();
                }
                String[,] arrayOfStrings = new String[4, td1stcolumn.Length];
                for (int j = 0; j < td1stcolumn.Length; j++)
                {
                    arrayOfStrings[0, j] = td1stcolumn[j];
                    arrayOfStrings[1, j] = td2ndcolumn[j];
                    arrayOfStrings[2, j] = td3rdcolumn[j];
                    arrayOfStrings[3, j] = td4thcolumn[j];
                }
                string resultDialogString = ResultDialog.ShowBox(arrayOfStrings, "Result Page", passwordTextBox.Text.ToString().Trim());
            }
        }

tdNstcolumn = new String[table.OwnTableRows.Count];

for (int i = 1; i < table.OwnTableRows.Count; i++)

<TD valign=top class=CELLTEXT>
&nbsp;
</TD>