checkbox选中问题？

[好好小妖]

GridView上有一组checkbox,如何判断checkbox都未被选中？
for (int i = 0; i < this.gvDepartment.Rows.Count; i++)
{
CheckBox chk = (CheckBox)gvDepartment.Rows[i].FindControl("chkItem");
if (chk.Checked)
{
chkID = gvDepartment.DataKeys[i].Value.ToString();
DropDownList ddl = (DropDownList)this.gvDepartment.Rows[i].FindControl("ddlmembername");
string departId = Balance.BalanceItem.BindDepartmentId(chkID);
Balance.BalanceItem.InsertTarget(this.ddlTarget.SelectedValue, this.ddlTarget.SelectedItem.Text.ToString().Trim(), this.txtHighscore.Text.ToString().Trim(), this.ddlBydepartment.SelectedValue, departId, ddl.SelectedValue.ToString().Trim(), this.txtValue.Text.ToString().Trim());
this.BindGridViewTarget();
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('请选择测评部门');</script>");
}

[好好小妖]

补充，如果checkbox都没被选中，我想弹出提示信息，ClientScript.RegisterStartupScript(this.GetType(), "", " <script>alert('请选择测评部门'); </script>");

[ivws_19]

用一个bool值作判断,每行的是否选中你现在可以判断吧

[webdiyer]

在客户端判断并提示效果更好，用jQuery再写一个each()循环就可以实现了

[好好小妖]

bool flag = false;for (int i = 0; i < this.gvDepartment.Rows.Count; i++)
{
CheckBox chk = (CheckBox)gvDepartment.Rows[i].FindControl("chkItem");
if (chk.Checked)
{
chkID = gvDepartment.DataKeys[i].Value.ToString();
DropDownList ddl = (DropDownList)this.gvDepartment.Rows[i].FindControl("ddlmembername");
string departId = Balance.BalanceItem.BindDepartmentId(chkID);
Balance.BalanceItem.InsertTarget(this.ddlTarget.SelectedValue, this.ddlTarget.SelectedItem.Text.ToString().Trim(), this.txtHighscore.Text.ToString().Trim(), this.ddlBydepartment.SelectedValue, departId, ddl.SelectedValue.ToString().Trim(), this.txtValue.Text.ToString().Trim());
this.BindGridViewTarget();
flag = true;
}
if(flag==false)
{
ClientScript.RegisterStartupScript(this.GetType(), "", " <script>alert('请选择测评部门'); </script>");
}

这样不行啊

[好好小妖]

[Quote=引用 3 楼 webdiyer 的回复:]
在客户端判断并提示效果更好，用jQuery再写一个each()循环就可以实现了
[/Quote]
能给个实例不

[wzh307]

bool isChecked = false;
for (int i = 0; i < this.gvDepartment.Rows.Count; i++)
            {                
                CheckBox chk = (CheckBox)gvDepartment.Rows[i].FindControl("chkItem");
                if (chk.Checked)
                {
                    isChecked = true;//有选择的
                    chkID = gvDepartment.DataKeys[i].Value.ToString();
                    DropDownList ddl = (DropDownList)this.gvDepartment.Rows[i].FindControl("ddlmembername");
                    string departId = Balance.BalanceItem.BindDepartmentId(chkID);
                    Balance.BalanceItem.InsertTarget(this.ddlTarget.SelectedValue, this.ddlTarget.SelectedItem.Text.ToString().Trim(), this.txtHighscore.Text.ToString().Trim(), this.ddlBydepartment.SelectedValue, departId, ddl.SelectedValue.ToString().Trim(), this.txtValue.Text.ToString().Trim());
                    this.BindGridViewTarget();
                }
               // else
              //  {
                  //  ClientScript.RegisterStartupScript(this.GetType(), "", " <script>alert('请选择测评部门'); </script>");
             //   }
       }
if (!isChecked)
{
ClientScript.RegisterStartupScript(this.GetType(), "", " <script>alert('请选择测评部门'); </script>");
}

[teerhu]

int cx=0;for (int i = 0; i < this.gvDepartment.Rows.Count; i++)
{
CheckBox chk = (CheckBox)gvDepartment.Rows[i].FindControl("chkItem");
if (chk.Checked)
{
++c;
chkID = gvDepartment.DataKeys[i].Value.ToString();
DropDownList ddl = (DropDownList)this.gvDepartment.Rows[i].FindControl("ddlmembername");
string departId = Balance.BalanceItem.BindDepartmentId(chkID);
Balance.BalanceItem.InsertTarget(this.ddlTarget.SelectedValue, this.ddlTarget.SelectedItem.Text.ToString().Trim(), this.txtHighscore.Text.ToString().Trim(), this.ddlBydepartment.SelectedValue, departId, ddl.SelectedValue.ToString().Trim(), this.txtValue.Text.ToString().Trim());
this.BindGridViewTarget();
}
if (cx==0)
{
ClientScript.RegisterStartupScript(this.GetType(), "", " <script>alert('请选择测评部门'); </script>");
}

[yechd]

4楼，6楼和7楼都对

[热学沸腾56]

很简单的问题啊，用一个标示符来判断，遍历完所有的checkbox，如果有被选中的则改变标示符，结束遍历
最后判断标示符是否又被改变，如果没改变说明checkbox全都没选中

[好好小妖]

4楼，6楼和7楼都不对
如果第一个checkbox没有选中，而选中了第2个或第3个，那么都会提示ClientScript.RegisterStartupScript(this.GetType(), "", " <script>alert('请选择测评部门'); </script>"); 除非选中第一个checkbox，才不会弹出信息。

[好好小妖]

求助高手

[好好小妖]

问题解决了！