关于vs2005，GridView中添加了checkBox，怎么判断哪些被选中？？

Question

如题，还有就是怎么为checkBox付值

Answer 1

foreach(GridViewRow row in GridView1.Rows) {
CheckBox chk = row.FindControl("MyCehckBoxID") as CheckBox;
if(chk.Checked) { 选中
    object key = GridView1.DataKeys[row.RowIndex].Value;
    // ...
}
}

Answer 2

function IsSelect()
    {
         var objtb=window.document.getElementById('GVRc');
        //计算数据列行数        var rownum=objtb.rows.length;
        for(var i=1;i<rownum;i++)
        {
            checkbox=objtb.rows[i].cells[0].children[0];
            if(checkbox.type="checkbox")
            {
                if(checkbox.checked==true)
                {
                    if(window.confirm('确定删除吗？')==1)
                    {
                      
                         return true ;
                     }
                     else
                     {
                        window.event.returnValue=false;
                        return false;
                     }
                }
            }
        }
        window.alert('请选择要删除的记录！');
       window.event.returnValue=false;
    }

Answer 3

还有就是怎么为checkBox付值＝＝＝＝＝＝＝＝＝MyCheckBox.Checked = true; // false;

Answer 4

string idStr 
foreach (GridViewRow row in gvYgList.Rows)
        {
      CheckBox QyCheck = (CheckBox)row.FindControl("CheckBox1");//楼主，主要是这句话
            if (QyCheck != null)
            {
                if (QyCheck.Checked == true)
                {
                  idStr += gvYgList.DataKeys[row.RowIndex].Value.ToString() + ",";
                 }
            }
        }

Answer 5

GridView 实现服务器端和客户端全选的两种方法http://dotnet.aspx.cc/article/a8efc285-f0b1-4f8f-8e73-2b7d8724a47c/read.aspx

Answer 6

用个循环遍历
for(int i = 0;i < GridView1.Rows.Count;i++)
{
check = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
if(check!=null)
{
if(check)
{
//获取被选中的列
}
}
}

Answer 7

foreach (GridViewRow rw in GridView1.Rows)CheckBox ch = ((CheckBox)rw.Cells[i].FindControl("CheckBox1"));if (true == ch.Checked)

Answer 8

思路就是你自己写一个方法
遍历你的DataGridView的所有行，返回选中的行数。
如
    private int GetCheckBoxNum()
    {
        int checkNum = 0;
        int editIndex = 0;
        for (int i = 0; i < Dg1.Items.Count; i++)
        {
            CheckBox chk = (CheckBox)Dg1.Items[i].Cells[0].Controls[1];
            if (chk.Checked)
            {
                checkNum = checkNum + 1;
                editIndex = i;
            }
        }
        if (checkNum == 1)
        {
            return checkNum;
        }
        else if (checkNum == 0)
        {
            return -1;
        }
        else
        {
            return checkNum;
        }
    }

Answer 9

CheckBox chk;
        foreach (GridViewRow r in GridView1.Rows)
        {
            chk = (CheckBox)r.FindControl("CheckBox2");
            if (chk != null)
            {
                if (chk.Checked)
                {
                     //用GridView1.DataKeys[r.RowIndex].Value.ToString()找到主键列的值,然后进行更新操作
                }
            }
        }        BindGrid();//重新绑定数据