A new way of Enable/Disable features

EnableFeature.aspx.cs

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

namespace MyWebRepo
{
public partial class EnableFeature : System.Web.UI.Page
{
public bool feature_enable = false;

protected void Page_Load(object sender, EventArgs e)
{

}
}
}

EnableFeature.aspx

body
form

<%-- Traditional Logic : We, used to check the settings in CodeBehind file and then set btnAbc.Visible=false :(
Why do we take extra-burdon to load and hide it; What happen if we do not create the button at all. So we turns to "New Logic"
--%>
<%-- New Logic :Use if in the webpage to check if the feature enabled/disabled. We may read the settings from DB also --%>

<% if (feature_enable)
{ %>
Button ID="btnAbc" runat="server" Text="My Button"

<% } %>


/form
/body

JavaScript in C#

$(document).ready(function() {";
st += " if(" + sales_tot_qty.ToString() + "==" + selected_qty.ToString() + ")";
st += " {";
st += " $('#tabs').tabs('enable',1);";
st += " }";
st += " else";
st += " {";
st += " $('#tabs').tabs('disable',1);";
st += " }";
st += "});";
st += "";

Page.ClientScript.RegisterStartupScript(typeof(string), "tabswitch", st);

Hierarchy ID

create table #region
(
nodeID hierarchyid,
regionID int identity(1,1),
regionName varchar(100),
)

-- First row
insert into #region(nodeID,regionName) values(hierarchyid::GetRoot(),'India')
go

-- Second row
declare @rootID hierarchyid = (select hierarchyid::GetRoot() from #region)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(NULL,NULL),'Kerala')

--Third row
declare @firstChild hierarchyid = @rootID.GetDescendant(NULL,NULL)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(@firstChild,NULL),'Tamilnadu')

-- Kerala -> Palakkad
select @rootID = CAST('/1/' as hierarchyid)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(NULL,NULL),'Palakkad')

-- Kerala -> Trivandrum
select @firstChild = @rootID.GetDescendant(NULL,NULL)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(@firstChild,NULL),'Trivandrum')

-- Kerala -> Calicut
declare @secondChild hierarchyid
select @secondChild = @rootID.GetDescendant(@firstChild,NULL)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(@secondChild,NULL),'Calicut')

-- Kerala -> Kannur
declare @thirdChild hierarchyid
select @thirdChild = @rootID.GetDescendant(@secondChild,NULL)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(@thirdChild,NULL),'Kannur')

-- Kerala -> Palakkad -> Mannarkkad
select @rootID = CAST('/1/1/' as hierarchyid)
insert into #region (nodeID,regionName) values(@rootID.GetDescendant(NULL,NULL),'Mannarkkad')


select * from #region
select nodeID.ToString(), regionName from #region

drop table #region

Difference between float and decimal

float vs decimal

DECLARE @Float1 float, @Float2 float, @Float3 float, @Float4 float;
SET @Float1 = 54;
SET @Float2 = 3.1;
SET @Float3 = 0 + @Float1 + @Float2;
SELECT @Float3 - @Float1 - g@Float2 AS "Should be 0";



DECLARE @Float1 decimal(8,3), @Float2 decimal(8,3), @Float3 decimal(8,3), @Float4 decimal(8,3);
SET @Float1 = 54;
SET @Float2 = 3.1;
SET @Float3 = 0 + @Float1 + @Float2;
SELECT @Float3 - @Float1 - @Float2 AS "Should be 0";

Visual Studio Command Line Debugging

We may build VS Solution from the VS Command prompt as

msbuild F:\WorkingFolderRauf\Work\ClearCanvasSource\SourceCodeMirror\WebViewer\ImageViewer\ImageViewer.sln