Remove item from array list of multiple column.

This problem occured when i was doing project in dotnetnuke 5.6.3 so in arraylist there have multiple columns and I and remove row which contains particular value of type.this is the code for solve this problem.

DotNetNuke.Entities.Users.UserController oUserController = new DotNetNuke.Entities.Users.UserController();
           
            ArrayList listroles = oUserController.GetUsers(this.PortalId, true, true);
            int j = 0;

            for (int i = 0; i < listroles.Count; i++)
            {
                DotNetNuke.Entities.Users.UserInfo info = (DotNetNuke.Entities.Users.UserInfo)listroles[i];
                if (info.Username == UserInfo.Username)
                {
                    listroles.Remove(info);
                }
            }

Split function in sql server

I have created a function for spliting the string of any type with the required delimeter which you want to specify hope so this function will solve your splitting problem in sql server.

CREATE FUNCTION dbo.fnSplit(
    @sInputList VARCHAR(8000) -- List of delimited items
  , @sDelimiter VARCHAR(8000) = ',' -- delimiter that separates items
) RETURNS @List TABLE (item VARCHAR(8000))

BEGIN
DECLARE @sItem VARCHAR(8000)
WHILE CHARINDEX(@sDelimiter,@sInputList,0) <> 0
 BEGIN
 SELECT
  @sItem=RTRIM(LTRIM(SUBSTRING(@sInputList,1,CHARINDEX(@sDelimiter,@sInputList,0)-1))),
  @sInputList=RTRIM(LTRIM(SUBSTRING(@sInputList,CHARINDEX(@sDelimiter,@sInputList,0)+LEN(@sDelimiter),LEN(@sInputList))))

 IF LEN(@sItem) > 0
  INSERT INTO @List SELECT @sItem
 END

IF LEN(@sInputList) > 0
 INSERT INTO @List SELECT @sInputList -- Put the last item in
RETURN
END
GO

Write Div Content on new window

We want to open new window and write content on it which we want to write into it.
$("#adv").click(function () {
            var html = $("#dvcontent").html();
            var w = window.open();
            w.document.writeln(html);
       });

Integrate Google Map into our MVC application

This is the code for integrating google map into our all types application just u paste this code and pass the longitude and latitude into function it ll automtically take the location and show ur desired place to u and you can manage it urself as u want.enjoy.....
script src="http://maps.google.com/maps?file=api&v=2&key=ABQIAAAAVc
JQrx7VsumiP2heFwp
6URQLaiSrhXTkLq3m
A9rOmHpVsHwBjxT
g7C5-XXHl634dCROpHwK
MO9BzmQ&sensor=true_or_false"
            type="text/javascript" script

    script type="text/javascript"

        function initialize() {
            if (GBrowserIsCompatible()) {
                var map = new GMap2(document.getElementById("map_canvas"));
                map.setCenter(new GLatLng(20.593684, 78.96288), 13);
                map.setUIToDefault();
            }
        }

   script

  body onload="initialize()" onunload="GUnload()"
    div id="map_canvas" style="width: 500px; height: 300px">
  body

   

Detect Browser Refresh to avoid events fired again in ASP.NET

If you have created an aspx page using C# and ASP.NET and have put a button on it. And in the Click event of this button if you are inserting some data in database , after click if user refresh the page than click event gets fired again resulting data insertion to database again, to stop events on the page getting fired on browser refresh we need to write bit of code to avoid it.

In this example I’ve put a Label and a Button on the page, on click the label Text becomes Hello and when I refresh the page label's text again becomes Hello

Markup

Now in the Page_Load event I m creating a Session Variable and assigning System date and time to it , and in Page_Prerender event I am creating a Viewstate variable and assigning Session variable's value to it than in button's click event I am checking the values of Session variable and Viewstate variable if they both are equal than page is not refreshed otherwise it has been refreshed 

public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Session["CheckRefresh"] = Server.UrlDecode(System.DateTime.Now.ToString()); } } protected void imgbtn_Click(object sender, ImageClickEventArgs e) { //Label2.Text = imgbtn.ToolTip; } protected void Button1_Click(object sender, EventArgs e) { if (Session["CheckRefresh"].ToString() == ViewState["CheckRefresh"].ToString()) { Label1.Text = "Hello"; Session["CheckRefresh"] = Server.UrlDecode(System.DateTime.Now.ToString()); } else { Label1.Text = "Page Refreshed"; } } protected void Page_PreRender(object sender, EventArgs e) { ViewState["CheckRefresh"] = Session["CheckRefresh"]; } }

Code for update panel postback problem solving by using Jquery

 I have a grid when I postback this grid by linkbutton which is in this grid jquery function was not working in mouse over so I paste this code into update panel to avoid postback .

    script type ="text/javascript"
                var prm = Sys.WebForms.PageRequestManager.getInstance();
                prm.add_endRequest(function () {
                    grid();
                });
            script

Refresh Page Issue in ASP.Net

Introduction

In Web Programming, the refresh click or postback is the big problem which generally developers face. So in order to avoid the refresh page issues like, if user refreshes the page after executing any button click event/method, the same method gets executed again on refresh. But this should not happen, so here is the code to avoid such issues.

Using the Code

Here the page's PreRender event and ViewState variable helps to differentate between the Button click event call or the Refresh page event call. For example, We have a web page having button to display text entered in text box to the Label.

So when page is first time loaded, then a session["update"] object is assigned by some unique value, and then thePreRender event is being called, where that session is assigned to the viewstate variable.

And on button click event, the session assigning code from page load will never called, as it is postback, so it directly calls the button click event where there is check whether the session and viewstate variables have same value. Here both values will be same. At the end of the click event method, the session variable is assigned with new unique value. Then always after click event, the PreRender event gets called where that newly assigned session value is assigned to viewstate variable.

So whenever the page is being refreshed, viewstate value will become previous value (previous value is taken from viewstate hidden control) which will never match with current session value. So whenever the control goes in button click event, the match condition never gets satisfied hence code related to button click never gets executed.

Points of Interest

Here we can understand the page events flow as well as Viewstate variable's workflow easily.

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack) // If page loads for first time
    {
        // Assign the Session["update"] with unique value
        Session["update"] = Server.UrlEncode(System.DateTime.Now.ToString()); 
        //=============== Page load code =========================




        //============== End of Page load code ===================
    }
}

protected void btnDisplay_Click(object sender, EventArgs e)
{ 
    // If page not Refreshed
    if (Session["update"].ToString() == ViewState["update"].ToString())
    {
        //=============== On click event code ========================= 

        lblDisplayAddedName.Text = txtName.Text;

        //=============== End of On click event code ==================

        // After the event/ method, again update the session 

        Session["update"] = Server.UrlEncode(System.DateTime.Now.ToString()); 
    }
    else // If Page Refreshed
    {
        // Do nothing 
    }
}

protected override void OnPreRender(EventArgs e)
{
    ViewState["update"] = Session["update"];
}