输入字符串格式不正确
0
悬赏园豆：50
[已关闭问题]
关闭于 2008-11-06 15:34
<table id="GridView1" style="border-collapse: collapse;" border="1" cellspacing="0" rules="all">
<tbody>
<tr>
<th scope="col"> </th><th scope="col">ProductId</th><th scope="col">ProductName</th><th scope="col">UnitPrice</th><th scope="col">CategoryId</th><th scope="col">Number</th><th scope="col">Unit</th>
</tr>
<tr>
<td><a href="javascript:__doPostBack('GridView1','buy$0')"><span style="color: #800080;">购买</span></a></td>
<td>1</td>
<td>fangbianmian</td>
<td>1.3</td>
<td>1</td>
<td>50</td>
<td>35 </td>
</tr>
<tr>
<td><a href="javascript:__doPostBack('GridView1','buy$1')"><span style="color: #0000ff;">购买</span></a></td>
<td>2</td>
<td>fd</td>
<td>2.5</td>
<td>1</td>
<td>54</td>
<td>43 </td>
</tr>
</tbody>
</table>
<p>如图</p>
<p> protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)<br /> {<br /> DataTable table = new DataTable();<br /> if(e.CommandName =="buy")<br /> {<br /> if (Session["m"] == null)<br /> {<br /> <br /> table.Columns.Add("商品编号",typeof (int));<br /> <br /> table.Columns.Add("商品名称",typeof (string ));<br /> <br /> table.Columns.Add("单价",typeof (double ));<br /> <br /> table.Columns.Add("单位含量",typeof (string ));<br /> <br /> table.Columns.Add("存货数量",typeof (int ));<br /> Session ["m"]=table ;<br /> }<br /> table =(System .Data .DataTable )Session ["m"];<br /> int index = Convert.ToInt32(e.CommandArgument );<br /> GridViewRow row=GridView1 .Rows [index];<br /> string bhText=row.Cells [1].ToString ();<br /> string mcText=row .Cells [2].ToString ();<br /> string djText=row .Cells [3].ToString ();<br /> string hlText=row .Cells [6].ToString ();<br /> string chText=row .Cells [5].ToString ();<br /> int bh = int.Parse(bhText );<br /> double dj = double.Parse(djText );<br /> int ch = int.Parse(chText );<br /> System.Data.DataRow dr = table.NewRow();<br /> dr["商品编号"] = bh;<br /> dr["商品名称"] = mcText;<br /> dr["单价"] = dj;<br /> dr["单位含量"] = hlText;<br /> dr["存货数量"] = ch;<br /> table.Rows.Add(dr);<br /> Session ["m"]=table ;</p>
<p> }</p>
<p>}</p>
<p>另一个窗体中GridView</p>
<p> protected void Page_Load(object sender, EventArgs e)<br /> {<br /> GridView1.DataSource = Session["m"];<br /> GridView1.DataBind();<br /> }</p>
<p>当单击购买时，显示 <em>输入字符串的格式不正确</em></p>
所有回答(3)
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int bh = int.Parse(bhText );
double dj = double.Parse(djText );
int ch = int.Parse(chText );
这几个你需要跟踪一下，parse很容易出错的。不推荐使用。
还有，row.Cells 你的排列对么？取到的值正确么？
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我也觉得这几个地方可能有错，调试一下看这里的值是不是错了，另外建议使用TryParse来做转换，减少出错的机率
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呵呵~~~
