`Gridview` 的第一行總是被刪除，而不是選擇刪除的用戶
[英]First row of the `Gridview` always gets deleted instead of the user selected for deletion
問題描述
我試圖從我的GridView刪除選定的用戶，但是當我選擇用戶旁邊的刪除按鈕時，它會刪除 Gridview 的第一行而不是所選用戶。
這是我的GridView ：
<asp:GridView
ID="gvUsers"
runat="server"
AutoGenerateColumns="False"
Width="100%"
GridLines="None"
CssClass="table table-bordered table-hover">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:HiddenField ID="hdnPagesize" runat="server" />
<img id="imgPreview" class="img-rounded" style="width: 38px; height: 38px; margin-top: -10px; margin-bottom: -12px" alt="" src="" />
</ItemTemplate>
<ItemStyle Width="4%" HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Name" SortExpression="Name">
<ItemTemplate>
<label id="lblFullName" style="font-weight: normal;"></label>
</ItemTemplate>
<ItemStyle CssClass="cssSearch" Width="28%" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Email">
<ItemTemplate>
<label id="lblEmail" style="font-weight: normal;"></label>
</ItemTemplate>
<ItemStyle CssClass="cssSearch" Width="24%" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Dob">
<ItemTemplate>
<label id="lblDob" style="font-weight: normal;"></label>
</ItemTemplate>
<ItemStyle Width="12%" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Status" ItemStyle-Width="7%">
<ItemTemplate>
<asp:HiddenField ID="hdnStatus" runat="server" />
<label id="lblStatus" style="font-size: 13px; font-weight: normal;"></label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Role">
<ItemTemplate>
<label id="lblRole" style="font-weight: normal;"></label>
</ItemTemplate>
<ItemStyle Width="8%" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Account" ItemStyle-Width="7%" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<label id="lblAccountStatus" style="font-weight: normal; font-size: large;"></label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Action" ItemStyle-Width="8%" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<a id="aEditUserDetails" style="cursor: pointer;">
<i class="ti-pencil-alt" style="font-size: large"></i>
</a>
<a id="aDeleteUser" style="cursor: pointer;" data-toggle="modal" data-target="#confirm-delete">
<i class="glyphicon glyphicon-trash text-danger" style="font-size: medium"></i>
</a>
<!-- BEGIN Modal Confirm -->
<div class="modal fade" id="confirm-delete" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-body">
<h4>Are you sure?</h4>
<br />
<a id="aDeleteUserModal" class="btn btn-success" data-dismiss="modal">Yes</a>
<input type="button" class="btn btn-danger" data-dismiss="modal" value="No" />
</div>
</div>
</div>
</div>
<!-- END Modal Confirm -->
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
然后我的代碼如下：
<script type="text/javascript">
var selectedPageSize = 10 /* Default size is 10. */
var currentPageIndex = 1 /* Default pageindex is 1. */
$(function () {
/* Retrieve list of users when page loads. */
GetUsers(currentPageIndex, selectedPageSize);
});
$(document).on("keyup", "[id*=txtSearch]", function () {
/* Retrieve list of users when any key is pressed in search box (txtSearch). */
GetUsers(currentPageIndex, selectedPageSize);
});
$(document).on("click", ".Pager .page", function () {
currentPageIndex = parseInt($(this).attr('page'))
GetUsers(currentPageIndex, selectedPageSize);
});
function changePagesize(obj) {
selectedPageSize = $("[id*=ddlPageSize]").val();
GetUsers(currentPageIndex, selectedPageSize);
}
function SearchKey() {
return jQuery.trim($("[id*=txtSearch]").val());
};
function GetUsers(pageIndex, pageSize) {
/* Pass parameters in array, gData.*/
var gData = [];
gData[0] = pageIndex;
gData[1] = pageSize;
gData[2] = SearchKey();
var jsonData = JSON.stringify({ gData: gData });
$.ajax({
type: "POST",
url: "users.aspx/GetUsers",
data: jsonData,
contentType: "application/json; charset=utf-8",
dataType: "json",
async: "true",
success: BindUsersList,
failure: function (response) {
},
error: function (response) {
alert(response.d);
}
});
}
var row;
function BindUsersList(response) {
var xmlDoc = $.parseXML(response.d);
var xml = $(xmlDoc);
var users = xml.find("dsUsers");
var html = '<table id="gvUsers">';
if (row == null) {
row = $("#<%=gvUsers.ClientID %> tr:last-child").clone(true);
}
$("#<%=gvUsers.ClientID %> tr").not($("#<%=gvUsers.ClientID %> tr:first-child")).remove();
html += $("#<%=gvUsers.ClientID %>").html();
if (users.length > 0) {
$.each(users, function () {
html += "<tr>";
$(row).find("[id*=imgPreview]").attr("src", "../imageHandler.ashx?user_id_pk=" + $(this).find("user_id_pk").text() + "");
$(row).find("[id*=lblFullName]").html($(this).find("FullName").text());
$(row).find("[id*=lblEmail]").html($(this).find("email").text());
$(row).find("[id*=lblDob]").html($(this).find("dob").text());
if ($(this).find("user_status").text() == "true") {
$(row).find("[id*=lblStatus]").html("Active");
$(row).find("[id*=lblStatus]").attr("class", "label label-success label-transparent");
}
else {
$(row).find("[id*=lblStatus]").html("Inactive");
$(row).find("[id*=lblStatus]").attr("class", "label label-danger label-transparent");
}
if ($(this).find("accountStatus").text() == "locked") {
$(row).find("[id*=lblAccountStatus]").attr("class", "ti-lock text-danger");
$(row).find("[id*=lblAccountStatus]").attr("data-toggle", "tooltip");
$(row).find("[id*=lblAccountStatus]").attr("data-placement", "left");
$(row).find("[id*=lblAccountStatus]").attr("title", "Account locked due to invalid login attempts.");
}
else {
$(row).find("[id*=lblAccountStatus]").attr("class", "ti-unlock text-success");
}
$(row).find("[id*=lblRole]").html($(this).find("user_role").text());
$(row).find("[id*=aEditUserDetails]").attr("data-user-id", $(this).find("user_id_pk").text());
$(row).find("[id*=aEditUserDetails]").attr("title", "Edit User Details");
$(row).find("[id*=aDeleteUserModal]").attr("data-user-id", $(this).find("user_id_pk").text());
$("#<%=gvUsers.ClientID %>").append(row);
row = $("#<%=gvUsers.ClientID %> tr:last-child").clone(true);
html += $(row).html();
html += "</tr>";
});
var pager = xml.find("dtPager");
$("[id*=divPager]").gvPager({
ActiveCssClass: "current",
PagerCssClass: "pager",
PageIndex: parseInt(pager.find("PageIndex").text()),
PageSize: parseInt(pager.find("PageSize").text()),
RecordCount: parseInt(pager.find("RecordCount").text())
});
$(".cssSearch").each(function () {
var searchPattern = new RegExp('(' + SearchKey() + ')', 'ig');
$(this).html($(this).text().replace(searchPattern, "<span class = 'highlight'>" + SearchKey() + "</span>"));
});
} else {
var empty_row = row.clone(true);
$("td:first-child", empty_row).attr("colspan", $("td", row).length);
$("td:first-child", empty_row).attr("align", "center");
$("td:first-child", empty_row).html("No Data Available.");
$("td", empty_row).not($("td:first-child", empty_row)).remove();
$("#<%=gvUsers.ClientID %>").append(empty_row);
}
html += '</table>';
};
/* Edit user details. */
$("[id*=aEditUser]").click(function () {
$.ajax({
type: "POST",
url: "users.aspx/EditUser",
data: '{userId: ' + $(this).data('user-id') + '}',
contentType: "application/json; charset=utf-8",
datatype: "json",
async: "true",
success: function (response) {
location.href = "newuser.aspx?uid=" + response.d;
},
error: function (response) {
Notification(response.status + ' ' + response.statusText, 'Error', 'error');
}
});
});
/* Delete user. */
$("[id*=aDeleteUserModal]").click(function () {
//var ans = confirm("Are you sure?");
//if (ans == true) {
$.ajax({
type: "POST",
url: "users.aspx/DeleteUser",
data: '{userId: ' + $(this).data('user-id') + '}',
contentType: "application/json; charset=utf-8",
datatype: "json",
async: "true",
success: function (response) {
if (response.d == 'DeletePermissionDenied') {
Notification('This feature is disabled in demo version.', 'Permission Denied', 'error');
//Notification('You dont have the permission to delete the data, contact your administrator.', 'Permission Denied', 'error');
}
else if (response.d == 'Success') {
GetUsers(currentPageIndex, selectedPageSize);
Notification('User deleted successfully.', 'Success', 'success');
}
},
error: function (response) {
Notification(response.status + ' ' + response.statusText, 'Error', 'error');
}
});
//}
});
</script>
以及背后的代碼：
private void BindUsersRow()
{
DataTable dtUsers = new DataTable();
dtUsers.Columns.Add("user_id_pk");
dtUsers.Columns.Add("FullName");
dtUsers.Columns.Add("email");
dtUsers.Columns.Add("dob");
dtUsers.Columns.Add("accountStatus");
dtUsers.Columns.Add("user_role");
dtUsers.Columns.Add("user_status");
dtUsers.Rows.Add();
gvUsers.DataSource = dtUsers;
gvUsers.DataBind();
//gvUsers.UseAccessibleHeader = true;
//gvUsers.HeaderRow.TableSection = TableRowSection.TableHeader;
}
[WebMethod]
public static string GetUsers(List<string> gData)
{
string query = "sp_um_getUsersList";
SqlCommand cmd = new SqlCommand(query);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@searchKey", gData[2]);
cmd.Parameters.AddWithValue("@PageIndex", gData[0]);
cmd.Parameters.AddWithValue("@PageSize", gData[1]);
cmd.Parameters.AddWithValue("@userStatus", strUserStatus);
cmd.Parameters.Add("@RecordCount", SqlDbType.Int, 4).Direction = ParameterDirection.Output;
return GetData(cmd, int.Parse(gData[0]), int.Parse(gData[1])).GetXml();
}
private static DataSet GetData(SqlCommand cmd, int pageIndex, int pageSize)
{
string strConnString = ConfigurationManager.ConnectionStrings["CONN"].ConnectionString;
using (SqlConnection con = new SqlConnection(strConnString))
{
using (SqlDataAdapter sda = new SqlDataAdapter())
{
cmd.Connection = con;
sda.SelectCommand = cmd;
using (DataSet ds = new DataSet())
{
sda.Fill(ds, "dsUsers");
DataTable dt = new DataTable("dtPager");
dt.Columns.Add("PageIndex");
dt.Columns.Add("PageSize");
dt.Columns.Add("RecordCount");
dt.Rows.Add();
dt.Rows[0]["PageIndex"] = pageIndex;
dt.Rows[0]["PageSize"] = pageSize;
dt.Rows[0]["RecordCount"] = cmd.Parameters["@RecordCount"].Value;
ds.Tables.Add(dt);
return ds;
}
}
}
}
[WebMethod]
public static string EditUser(int userId)
{
string str = HttpUtility.UrlEncode(DataControl.Encrypt(userId.ToString()));
return str;
}
[WebMethod]
public static string DeleteUser(int userId)
{
string result = "";
if (isDeletePermission.Equals(false))
{
result = "DeletePermissionDenied";
}
else
{
string strQuery = "EXEC sp_um_deleteUser " + userId + "," + int.Parse(HttpContext.Current.Session["UserId"].ToString()) + "";
bool isResult = DataControl.ExecuteNonQuery(strQuery);
if (isResult.Equals(true))
{
result = "Success";
}
else
{
result = "Error";
}
}
return result;
}
但是，當我選擇編輯它工作的用戶時，我可以編輯和更新現在的問題。 只有當我嘗試刪除用戶時，才會在刪除第一行時發生這種情況，而不管選擇刪除的用戶（行）如何。
謝謝，
請注意，我之前已經問過這個問題，但意識到我沒有提供足夠的代碼和解釋，所以我想我寧願發布一個包含更多細節的新問題。
1 個解決方案
解決方案1
0 2020-01-07 13:00:12
您必須始終進行行的克隆，但是頁面的 Dom 中會出現重復的行。 它應該是這樣的：
var row;
function BindUsersList(response) {
var xmlDoc = $.parseXML(response.d);
var xml = $(xmlDoc);
var users = xml.find("dsUsers");
var html = '<table id="gvUsers">';
row = $("#<%=gvUsers.ClientID %> tr:last-child").clone(true);
[...]
另一個可能的錯誤是收集ID，我會修改它，這樣AJAX 功能就不會與點擊混淆。
/* Edit user details. */
$("[id*=aEditUser]").click(function () {
var idUser = $(this).data('user-id');
$.ajax({
type: "POST",
url: "users.aspx/EditUser",
data: '{userId: ' + idUser + '}',
contentType: "application/json; charset=utf-8",
datatype: "json",
async: "true",
success: function (response) {
location.href = "newuser.aspx?uid=" + response.d;
},
error: function (response) {
Notification(response.status + ' ' + response.statusText, 'Error', 'error');
}
});
});
列表框中的第一項始終被讀取，而不是列表框中的選定（突出顯示）項
[英]First item in listbox always gets read instead of selected (highlighted) item in listbox
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