gridview中的checkbox为什么取不到傎？

[enasp]

我的gridview中的checkbox是这样取值的((Label)GridView1.Rows[i].Cells[1].FindControl("Label1")).Text;

想换成以下，导出excel不知怎么换？

{

        StringBuilder s = new StringBuilder();
        s.AppendLine("<table style='width:800px' border=1>");
        for (int i = 0; i < GridView1.Rows.Count; i++)
        {
            CheckBox ck = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox1");
            if (ck.Checked)
            {
                //GridView1.Columns
                s.AppendLine("<tr>");
                for (int j = 0; j < GridView1.Columns.Count; j++)
                {
                    s.AppendFormat("<td>{0}</td>", GridView1.Rows[i].Cells[j].Text);
                }
                s.AppendLine("</tr>");

            }
        }
        s.Append("</table>");
        Export("application/ms-excel", "excel.xls", s.ToString());

[金大哈]

我的gridview中的checkbox是这样取值的((Label)GridView1.Rows[i].Cells[1].FindControl("Label1")).Text;




中

我的gridview中的checkbox是这样取值的((Label)GridView1.Rows[i].Cells[1].FindControl("Label1")).Text;


标色的部分 很明显不对

[金大哈]

看错了 你到底是 label 取值 还是 checkbox取值 ？

[enasp]

label取值

看看我的giriview 能过浏览器--查看源代码

 <span id="ctl00_mainholder_GridView1_ctl03_Label1">2</span>
                    </td><td style="width:150px;">
                                         <a  href='complaindisplay.aspx?feedID=3859e483-27c8-496d-9212-096a0e329ad5'>
                                         <span id="ctl00_mainholder_GridView1_ctl03_Label2">我对“游泳衣约定”的看法</span></a>
                                    </td><td style="width:60px;">
                        <span id="ctl00_mainholder_GridView1_ctl03_Label3">POI</span>
                    </td><td style="width:60px;">
                        <span id="ctl00_mainholder_GridView1_ctl03_Label4">我对“游泳衣约定”的看法</span>
                    </td><td style="width:60px;">
                        <span id="ctl00_mainholder_GridView1_ctl03_Label5"> </span>
                    </td><td style="width:60px;">
                        <span id="ctl00_mainholder_GridView1_ctl03_Label6">客户公司</span>
                    </td><td style="width:60px;">
                        <span id="ctl00_mainholder_GridView1_ctl03_Label7"> </span>

[xiaowen_ly]

for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if (cbox.Checked == true)
{

}
}

[浮生若梦丶]

[Quote=引用 4 楼 xiaowen_ly 的回复:]
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if (cbox.Checked == true)
{

}
}
[/Quote]
up

[xiaowen_ly]

for (int i = 0; i < GridView1.Rows.Count-1; i++)
{
CheckBox ck = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); if (ck.Checked)
{
//GridView1.Columns
s.AppendLine("<tr>");
for (int j = 0; j < GridView1.Columns.Count; j++)
{
s.AppendFormat("<td>{0}</td>", GridView1.Rows[i].Cells[j].Text);
}
s.AppendLine("</tr>");

}
}

[jfd198512]

顶！LZ

[jfd198512]

http://vote.csdn.net/VotePost.aspx?voteid=1235

[enasp]

[Quote=引用 6 楼 xiaowen_ly 的回复:]
for (int i = 0; i < GridView1.Rows.Count-1; i++)
{
CheckBox ck = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); if (ck.Checked)
{
//GridView1.Columns
s.AppendLine(" <tr>");
for (int j = 0; j < GridView1.Columns.Count; j++)
{
s.AppendFormat(" <td>{0…
[/Quote]

取到是空的。没有数据！我是label取值的

[臭你个臭臭]

我刚用了

for(int i=0;i<=GridView1.Rows.Count-1;i++)
{
  CheckBox cbox=(CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
  Lebel.Test=cbox.Text;
}

[臭你个臭臭]

或者将CheckBox换成System.Web.UI.WebControl.CheckBox，如果提示你命名空间什么的
上面的cbox.Text一定能取到的，因为我正在用。

[yu285491710]

[Quote=引用 5 楼 fly_to_the_winds 的回复:]
引用 4 楼 xiaowen_ly 的回复:
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if (cbox.Checked == true)
{

}
}

up
[/Quote]
up

[enasp]

为什么我的断点是这样的，没有取到值

(CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox1") {Text = "" Checked = false} System.Web.UI.WebControls.CheckBox

[enasp]

   s.AppendLine("<table style='width:800px' border=1>");

    
        for (int i = 0; i < GridView1.Rows.Count; i++)
        {
 

            CheckBox ck = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox1");
            if (ck.Checked)
            {
                //GridView1.Columns 
                s.AppendLine(" <tr>");
                for (int j = 0; j < GridView1.Columns.Count; j++)
                {
                
                   s.AppendFormat("<td>{0} </td>", ((Label)GridView1.Rows[i].Cells[j].FindControl("Label")).Text);

// 提示出错：System.NullReferenceException: 未将对象引用设置到对象的实例。

                }
                s.AppendLine(" </tr>");

            }
        } 


        s.Append("</table>");
        Export("application/ms-excel", "excel.xls", s.ToString());

[shaohui139]

在前台给CheckBox 添加属性AutoPostBack=true;

[lyp464686109]

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) {
FAC = Request.QueryString["FAC"];
DEPTNO = Request.QueryString["DEPTNO"];
objRes=objWF.DG_GetAllEmployee(FAC,DEPTNO);
this.GridView1.DataSource = objRes.dt.DefaultView;
this.GridView1.DataBind();
}


}

[ymf5555]

用foreach循环
foreach (GridViewRow row in givCoporation.Rows)
{
CheckBox cbx = (CheckBox)row.FindControl("cbxChecked") as CheckBox;
}

[insus]

参考GridView与CheckBox相关：
http://www.cnblogs.com/insus/articles/1411613.html
http://www.cnblogs.com/insus/articles/1413740.html
http://www.cnblogs.com/insus/articles/1406192.html
http://www.cnblogs.com/insus/articles/1443165.html

[showlie]

把你的GridView的Columns结构贴出来看看
或者你直接断点看看Cells[0].Controls里面的哪个Control才是CheckBox，然后直接获取Cells[0].Controls[n] as CheckBox