ASP.net Gridview复选框勾选/取消更新

我在ASP.NET中有一个Gridview，我需要在GridView和Update按钮中包含复选框。在检查特定行的复选框时，应该触发更新事件并单击更新按钮应保存更改。我写了C＃代码来更新Gridview而不使用复选框。但是，如果包含复选框，则无法继续。网格视图设计规范是：ASP.net Gridview复选框勾选/取消更新

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml"> 
<head runat="server"> 
    <title></title> 
</head> 
<body> 
    <form id="form1" runat="server"> 
    <div> 
     <asp:Label ID="Label1" runat="server" Text="Employee ID"></asp:Label> 
     <asp:TextBox ID="TextBox1" runat="server" style="margin-left: 110px"></asp:TextBox> 
     <br /> 
     <br /> 
     <asp:Label ID="Label2" runat="server" Text="Employee Name"></asp:Label> 
     <asp:TextBox ID="TextBox2" runat="server" style="margin-left: 90px"></asp:TextBox> 
     <br /> 
     <br /> 
     <asp:Label ID="Label3" runat="server" Text="Employee Experience"></asp:Label> 
     <asp:TextBox ID="TextBox3" runat="server" style="margin-left: 61px"></asp:TextBox> 
     <br /> 
     <br /> 
     <asp:Label ID="Label4" runat="server" Text="Employee Address"></asp:Label> 
     <asp:TextBox ID="TextBox4" runat="server" style="margin-left: 79px"></asp:TextBox> 
     <br /> 
     <br /> 
     <asp:Button ID="Button2" runat="server" onclick="Button2_Click" 
      style="text-align: left" Text="Submit" /> 
    <asp:GridView ID="EmployeeGridView" runat="server" AutoGenerateColumns="False" 
      DataKeyNames="Emp_id" onrowcancelingedit="EmployeeGridView_RowCancelingEdit" 
      onrowediting="EmployeeGridView_RowEditing" 
      onrowdeleting="EmployeeGridView_RowDeleting" 
      onrowupdating="EmployeeGridView_RowUpdating" AllowPaging="True" CellPadding="4" 
      ForeColor="#333333" GridLines="None" 
      onpageindexchanging="EmployeeGridView_PageIndexChanging" 
      Width="408px" AllowSorting="True" 
      onselectedindexchanged="EmployeeGridView_SelectedIndexChanged"> 
     <AlternatingRowStyle BackColor="White" /> 
    <Columns> 
    <asp:TemplateField HeaderText="Sr.No"> 
    <ItemTemplate><%#Container.DataItemIndex+1 %></ItemTemplate> 
    </asp:TemplateField> 
    <asp:TemplateField HeaderText="Name"> 
    <ItemTemplate><%#Eval("Emp_name") %></ItemTemplate> 
    <EditItemTemplate> 
    <asp:TextBox ID="txtempname" runat="server" Text='<%#Eval("Emp_name") %>'></asp:TextBox> 
    </EditItemTemplate> 
    </asp:TemplateField>  
    <asp:TemplateField HeaderText="Experience"> 
    <ItemTemplate><%#Eval("Emp_exp") %></ItemTemplate> 
    <EditItemTemplate> 
    <asp:TextBox ID="txtempexp" runat="server" Text='<%#Eval("Emp_exp") %>'></asp:TextBox> 
    </EditItemTemplate> 
    </asp:TemplateField> 
    <asp:TemplateField HeaderText="Address"> 
    <ItemTemplate><%#Eval("Emp_address") %></ItemTemplate> 
    <EditItemTemplate> 
    <asp:TextBox ID="txtempaddress" runat="server" Text='<%#Eval("Emp_address") %>'></asp:TextBox> 
    </EditItemTemplate> 
    </asp:TemplateField> 

    <asp:CommandField ShowEditButton="true" ButtonType ="Button" 
      ItemStyle-ForeColor= "Aqua"> 
<ItemStyle ForeColor="Aqua"></ItemStyle> 
     </asp:CommandField> 
    <asp:CommandField ShowDeleteButton="true" ButtonType="Button" HeaderText="Delete" /> 
    </Columns> 
     <EditRowStyle BackColor="#2461BF" /> 
     <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> 
     <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> 
     <PagerSettings FirstPageText="First" LastPageText="Last" 
      Mode="NumericFirstLast" PageButtonCount="4" /> 
     <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" /> 
     <RowStyle BackColor="#EFF3FB" /> 
     <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" /> 
     <SortedAscendingCellStyle BackColor="#F5F7FB" /> 
     <SortedAscendingHeaderStyle BackColor="#6D95E1" /> 
     <SortedDescendingCellStyle BackColor="#E9EBEF" /> 
     <SortedDescendingHeaderStyle BackColor="#4870BE" /> 
    </asp:GridView> 


    </div> 
    <asp:Button ID="Button1" runat="server" Text="Update" /> 
    </form> 
</body> 
</html>

C＃代码的背后是：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Data; 
using System.Data.SqlClient; 


public partial class _Default : System.Web.UI.Page 
{ 
    string connstr = @"Data Source=xxxxxxx\SQLEXPRESS;Initial Catalog=xxxxxxxxx;Integrated Security=True"; 
    protected void EmployeeGridView_Sorting(object sender, GridViewSortEventArgs e) 
    { 
     Session["sortBy"] = e.SortExpression; 
     FillGrid(); 
    } 
    protected void Page_Load(object sender, EventArgs e) 
    { 
     Session["sortBy"] = null; 
     if (!Page.IsPostBack) 
     { 
      FillGrid(); 
     } 
    } 
    public void FillGrid() 
    { 
     SqlConnection con = new SqlConnection(connstr); 
     con.Open(); 
     SqlCommand cmd = new SqlCommand("GetEmployeeInfo", con); 
     SqlDataReader dr = cmd.ExecuteReader();//it reads froword only data from database 
     DataTable dt = new DataTable();//object of data table that uses to conatin whole data 
     dt.Load(dr);//Sql Data reader data load in data table it is DataTable Method. 
     EmployeeGridView.DataSource = dt; 
     EmployeeGridView.DataBind(); 

    } 
    protected void EmployeeGridView_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) 
    { 
     EmployeeGridView.EditIndex = -1; 
     FillGrid(); 

    } 
    protected void EmployeeGridView_RowEditing(object sender, GridViewEditEventArgs e) 
    { 
     EmployeeGridView.EditIndex = e.NewEditIndex; 
     FillGrid(); 
    } 

    protected void EmployeeGridView_RowUpdating(object sender, GridViewUpdateEventArgs e) 
    { 
     int empid = Convert.ToInt32(EmployeeGridView.DataKeys[e.RowIndex].Value.ToString());//Get Each Row unique value from DataKeyNames 
     string name = ((TextBox)EmployeeGridView.Rows[e.RowIndex].FindControl("txtempname")).Text;//get TextBox Value in EditItemTemplet that row is clicked 
     string experience = ((TextBox)EmployeeGridView.Rows[e.RowIndex].FindControl("txtempexp")).Text; 
     string address = ((TextBox)EmployeeGridView.Rows[e.RowIndex].FindControl("txtempaddress")).Text; 
     SqlConnection con = new SqlConnection(connstr); 
     con.Open(); 
     SqlCommand cmd = new SqlCommand("EmployeeUpdate", con); 
     cmd.CommandType = CommandType.StoredProcedure; 
     cmd.Parameters.AddWithValue("@emp_id ", empid); 
     cmd.Parameters.AddWithValue("@emp_name ", name); 
     cmd.Parameters.AddWithValue("@emp_exp ", experience); 
     cmd.Parameters.AddWithValue("@emp_address ", address); 
     cmd.ExecuteNonQuery();//Sql Command Class method return effected rows use for insert,update, delete 
     EmployeeGridView.EditIndex = -1;// no row in edit mode 
     FillGrid(); 
    } 
    protected void EmployeeGridView_RowDeleting(object sender, GridViewDeleteEventArgs e) 
    { 
     int empid = Convert.ToInt32(EmployeeGridView.DataKeys[e.RowIndex].Value.ToString()); 
     SqlConnection con = new SqlConnection(connstr); 
     con.Open(); 
     SqlCommand cmd = new SqlCommand("DeleteEmployee", con); 
     cmd.CommandType = CommandType.StoredProcedure; 
     cmd.Parameters.AddWithValue("@emp_id ", empid); 
     cmd.ExecuteNonQuery(); 
     FillGrid(); 

    } 
    protected void EmployeeGridView_PageIndexChanging(object sender, GridViewPageEventArgs e) 
    { 
     EmployeeGridView.PageIndex = e.NewPageIndex; 
     FillGrid(); 

    } 
    private void UpdateOrAddNewRecord(string Emp_id, string Emp_name, string Emp_exp, string Emp_address) 
    { 
     SqlConnection con = new SqlConnection(connstr); 
     string sqlStatement = string.Empty; 
     sqlStatement = "INSERT INTO tbl_employee" + 
         "(Emp_id, Emp_name, Emp_exp, Emp_address)" + 
         "VALUES (@Emp_id, @Emp_name, @Emp_exp, @Emp_address)"; 
     con.Open(); 
     SqlCommand cmd = new SqlCommand(sqlStatement, con); 
     cmd.Parameters.AddWithValue("@Emp_id", Emp_id); 
     cmd.Parameters.AddWithValue("@Emp_name", Emp_name); 
     cmd.Parameters.AddWithValue("@Emp_exp", Emp_exp); 
     cmd.Parameters.AddWithValue("@Emp_address", Emp_address); 
     cmd.CommandType = CommandType.Text; 
     cmd.ExecuteNonQuery(); 
     con.Close(); 
    } 
    protected void Button2_Click(object sender, EventArgs e) 
    { 
     UpdateOrAddNewRecord(TextBox1.Text, TextBox2.Text, TextBox3.Text, TextBox4.Text); 
     FillGrid(); 
    } 
}

我没有保持代码为DeleteEmployee，EmployeeUpdate，GetEmployeeInfo的存储过程。

在上面的代码中，我需要插入复选框GridView和更新其进行检查，而不是点击编辑按钮，然后更新

来源

2013-03-28 user1292831

你的工作在这里贴上。人们无法读取你的脑海里 – 2013-03-28 07:22:15

什么_exactly_是你的问题？一旦你添加一个复选框会发生什么？ – Blachshma 2013-03-28 07:48:25

我需要代码来保留每一行的复选框，并且一旦复选框被选中，并且点击了更新按钮以选中复选框，应该提示用户输入相应的字段，然后点击保存按钮进行保存。 – user1292831 2013-03-28 08:57:55

在更新按钮被点击的情况下，做这些事的项目。循环遍历网格的每一行。在每一行中，获取相应的复选框检查CheckedBox是否被选中如果选中，则从当前行中检索其他值并调用ur更新方法。

for (int innercounter = 0; innercounter < grid.Rows.Count; innercounter++) 
{ 
CheckBox chkSelect; 
chkSelect = (CheckBox)grid.Rows[innercounter].Cells[0].FindControl("ChkSelect"); 
if (chkSelect.Checked == true) 
    { 
    Label Field1 = (Label)grid.Rows[innercounter].Cells[1].FindControl("txtFieldName1"); 
    Label Field2 = (Label)grid.Rows[innercounter].Cells[2].FindControl("txtFieldName2"); 
    Update(Field1.text,Field2.text) 
    } 

}

来源

2013-03-29 13:50:57 user2155759

你能否告诉我在我目前的情况下的代码 – user1292831 2013-04-02 10:53:46

ASP.net Gridview复选框勾选/取消更新

回答

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