I am trying to add Pagination in ASP.NET MVC using this link(https://qawithexperts.com/article/asp.net/paging-sorting-and-filtering-in-aspnet-mvc-c/31)
...Hello, I am using Entity framework in my asp.net MVC project, when I try to delete any row using Entity framework, I am getting following error
...I would like to know methods to improve performance of asp.net MVC web application? To get better score on Google Page Insights
Thank you
...How can I delete (remove) single record from database table using entity framework in asp.net MVC Controller?
please note I want to delete row of selected Id from the database permanently(Not to make a column
IsActive and set it as false)
I am getting this error when trying to work on Code First migration with Entity Framework
The model backing the 'bwavenueDbContext' context has changed since the database was created. Consider using Code First Migrations to update the databasehere is the error image
...
Hello Guys !!
I have already asked the same question but now I am again asking with the new requirement, so please read carefully and solve my issues.
My Requirement:
Explaining my Requirement
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="N-level-Treeview.aspx.cs"
Inherits="N_level_Treeview" %>
<!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:TreeView ID="TreeView1" runat="server" ImageSet="XPFileExplorer" NodeIndent="15">
<HoverNodeStyle Font-Underline="True" ForeColor="#6666AA" />
<NodeStyle Font-Names="Tahoma" Font-Size="8pt" ForeColor="Black" HorizontalPadding="2px"
NodeSpacing="0px" VerticalPadding="2px"></NodeStyle>
<ParentNodeStyle Font-Bold="False" />
<SelectedNodeStyle BackColor="#B5B5B5" Font-Underline="False" HorizontalPadding="0px"
VerticalPadding="0px" />
</asp:TreeView>
</div>
</form>
</body>
</html>?
: - I have a table and there are Srno,PId, Pname, CID, CName,Cqty columns in my table.
Suppose if CID is also in PID column, Node must be created on that CID and also must have expand button to show the child of that cID.
What i have done in coding let's see...
CS--------
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;
using System.Configuration;
public partial class N_level_Treeview : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
DataTable dt = this.GetData("SELECT cId, cName FROM TopBill");
this.PopulateTreeView(dt, 0, null);
}
}
private void PopulateTreeView(DataTable dtParent, int parentId, TreeNode treeNode)
{
foreach (DataRow row in dtParent.Rows)
{
TreeNode child = new TreeNode
{
Text = row["cName"].ToString(),
Value = row["cId"].ToString()
};
if (parentId == 0)
{
TreeView1.Nodes.Add(child);
DataTable dtChild = this.GetData("SELECT srNo,cid, cName FROM TopBill WHERE pid = " + child.Value);
PopulateTreeView(dtChild, int.Parse(child.Value), child);
}
else
{
treeNode.ChildNodes.Add(child);
}
}
}
private DataTable GetData(string query)
{
DataTable dt = new DataTable();
string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
using (SqlConnection con = new SqlConnection(constr))
{
using (SqlCommand cmd = new SqlCommand(query))
{
using (SqlDataAdapter sda = new SqlDataAdapter())
{
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
sda.SelectCommand = cmd;
sda.Fill(dt);
}
}
return dt;
}
}
}
-------------- Current Output of my Code is ...
...
How can I maintain the session of the user in ASP.NET MVC? Here is the login case for the user. (Only authenticated users are allowed to login in the system.) But once the user gets logged in and press the back button then the user needs to login again. I want to solve this issue. Can anyone have idea about it?
...I Have populated the DropDownList with the roles from the AspNetRoles, when I am registering a new user and allocating a role an error is thown
"There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key 'Name'."
My AccountController :
...How can I simplify the url to http://localhost:51675/Prescriptions/Create/12 instead of http://localhost:51675/Prescriptions/Create?AssessmentID=12.
currently i am using this code
Hi, I have just created a project using Visual Studio 2015 & selected MVC template, but When I tried to build the project and executed it in the browser, I got the error as below
The following errors occurred while attempting to load the app.
- No assembly found containing an OwinStartupAttribute.
- No assembly found containing a Startup or [AssemblyName].Startup class.
To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of "false" in your web.config.
To specify the OWIN startup Assembly, Class, or Method, add the appSetting owin:AppStartup with the fully qualified startup class or configuration method name in your web.config.Here is the Image of the error
...