选中复选框时的 ASP Gridview 将值存储在数组中答案

【问题标题】：ASP Gridview when checkbox is selected store values in array选中复选框时的 ASP Gridview 将值存储在数组中
【发布时间】：2016-06-14 05:47:16
【问题描述】：

I have added a checkbox (chkCtrl) column into a gridview, when the checkboxes are selected i want to grab the email address that corresponds to that row and store all the results in a list or array.我希望在单击“发送电子邮件”按钮时发生这种情况。

Gridview 代码 ASP.net

<asp:GridView CssClass="table table-hover" BorderWidth="2px" ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="GrabModuleID" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" >
                <Columns>
                    <asp:CommandField EditText="" ShowSelectButton="True" SelectText="View Student Details" />
                    <asp:BoundField DataField="StudentNo" HeaderText="Student Number" SortExpression="StudentNo"  />
                    <asp:BoundField DataField="Email" HeaderText="Email" SortExpression="Email" />
                    <asp:BoundField DataField="UserID" HeaderText="UserID" SortExpression="UserID" Visible="false" />
                    <asp:BoundField DataField="ModuleID" HeaderText="ModuleID" SortExpression="ModuleID" Visible="false" />
                    <asp:TemplateField>
                    <ItemTemplate>
                        <asp:CheckBox ID="chkCtrl" runat="server" />
                    </ItemTemplate>
        </asp:TemplateField>

发送电子邮件按钮代码：

<asp:Button ID="SendEmail" runat="server" class="btn btn-primary" Text="Send Class Email" OnClick="SendEmail_Click" />

【问题讨论】：

标签： asp.net arrays gridview checkbox arraylist

【解决方案1】：

逻辑很简单。单击按钮只需遍历 gridview 行并在每行中找到复选框。接下来，检查该复选框是否被选中，然后找到电子邮件地址并将其存储在一个集合中。

protected void SendEmail_Click(object sender, EventArgs e)
{
    List<string> emails = new List<string>(); 
    foreach (GridViewRow row in grdCustomer.Rows)
    {
        CheckBox chkCtrl = row.FindControl("chkCtrl") as CheckBox;
        if (chkCustomer.Checked)
        {
            cities.Add(row.Cells[1].Text);
        }
    }
}

【讨论】：

感谢 Rahul，试用了一下，效果不错。解决它的有效方法。

【解决方案2】：

您可以在 foreach 中使用 Row.Cells[index] 访问 BoundFields

foreach (GridViewRow row in GridView1.Rows)
{
     Control controlcbx = row.Cells[6].Controls[1]; //control for checkbox
     string email = row.Cells[2].Text; // email text
     List<string> emailList = new List<string>(); //list to save emails
     CheckBox cbx = controlcbx as Checkbox;
     if(cbx.Checked)
     {
         emailList.Add(email);
     }
}

验证 Cell[index] 以匹配您的 BoundFields

【讨论】：