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  • alternate way to read excel files without providing "network service" security.

    - by Jebli
    Hi, I am using a web application to read the excel file and uploading it in the database. I have deployed the application in the server.I am using windows service 2003 as the server.I am able to read the excel file only if i set the set the security settings to "network service" for the microsoft excel application in the control panel -- administrative tools -- componetn service -- computer -- My computer -- DCOM config -- microsoft excel application . Why is it so . There are also other applications running in the server. 1) Doing like this will create any issue ? 2) Why do we need to do it ? 3) Is there any alternative way to do it ? 4) What are we doing actually by providing network service access ? Please help

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  • Unable to connect to OpenId Provider

    - by Ramesh V
    When I run in visual studio I am able to connect to openid provider, But if I host app in IIS ,I am not able to connect to openid provider. (I am getting error at CreateRequest) Please let me know what settings has to be done in IIS so that I can connect to the Openid Provider. Below is the error I am getting [InvalidOperationException: Sequence contains no elements] System.Linq.Enumerable.First(IEnumerable`1 source) +336 DotNetOpenAuth.OpenId.RelyingParty.OpenIdRelyingParty.CreateRequest(Identifier userSuppliedIdentifier) [ProtocolException: No OpenID endpoint found.] DotNetOpenAuth.OpenId.RelyingParty.OpenIdRelyingParty.CreateRequest(Identifier userSuppliedIdentifier)

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  • Hashtable is that fast

    - by Costa
    Hi s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1]. Is the hash function of the java string, I assume the rest of languages is similar or close to this implementation. If we have hash-Table and a list of 50 elements. each element is 7 chars ABCDEF1, ABCDEF2, ABCDEF3..... ABCDEFn If each bucket of hashtable contains 5 strings (I think this function will make it one string per bucket, but let us assume it is 5). If we call col.Contains("ABCDEFn"); // will do 6 comparisons and discover the difference on the 7th. The hash-table will take around 70 operations (multiplication and additions) to get the hashcode and to compare with 5 strings in bucket. and BANG it found. For list it will take around 300 comparisons to find it. for the case that there is only 10 elements, the list will take around 70 operations but the Hashtable will take around 50 operations. and note that hashtable operations are more time consuming (it is multiplications). I conclude that HybirdDictionary in .Net probably is the best choice for that most cases that require Hashtable with unknown size, because it will let me use a list till the list becomes more than 10 elements. still need something like HashSet rather than a Dictionary of keys and values, I wonder why there is no HybirdSet!! So what do u think? Thanks

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  • Multiple generic parameters on a html helper extension method

    - by WestDiscGolf
    What I'm trying to do is create an extension method for the HtmlHelper to create a specific output and associated details like TextBoxFor<. What I want to do is specify the property from the model class as per TextBoxFor<, then an associated controller action and other parameters. So far the signature of the method looks like: public static MvcHtmlString Create<TModel, TProperty, TController>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, Expression<Action<TController>> action, object htmlAttributes) where TController : Controller where TModel : class The issue occurs when I go to call it. In my view if I call it as per the TextBoxFor without specifying the Model type I am able to specify the lambda expression to set the property which it's for, but when I go to specify the action I am unable to. However, when I specify the controller type Html.Create<HomeController>( ... ) I am unable to specify the model property that the control is to be created for. I want to be able to call it like <%= Html.Create(x => x.Title, controller => controller.action, null) %> I've been hitting my head for a few hours now on this issue over the past day, can anyone point me in the right direction?

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  • Finding ALL positions of a substring in a large string in C#

    - by Tommy
    Alright, so what i have, is a large string i need to parse, and what i need to happen, is find all the instances of extract"(me,i-have lots. of]punctuation, and store them to a list. So say this piece of string was in the beginning and middle of the larger string, both of them would be found, and their index's would be added to the List. and the List would contain 0 and the other index whatever it would be. Ive been playing around, and the string.IndexOf does almost what i'm looking for, and ive written some code. But i cant seem to get it to work: List<int> inst = new List<int>(); int index = 0; while (index < source.LastIndexOf("extract\"(me,i-have lots. of]punctuation", 0) + 39) { int src = source.IndexOf("extract\"(me,i-have lots. of]punctuation", index); inst.Add(src); index = src + 40; } inst = The list source = The large string Any better ideas?

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  • Save in Sessions to reduce database load

    - by Kovu
    at the moment I try to reduce the load on my database extremly, so I had a look in my website and think about - what database calls can I try to avoid. So is there a rule for that? Sould I save every information in a Session that is nearly never changed? e.g.: The User-Table is a 35-coloumn-table which I need so often in so different ways, that in the moment I got this user-object at nearly every PageLoad AND in the master-site-page-load (Settings, display the username for a welcome message, colors etc etc.). So is that good to avoid the database query here, save the User-Object in a Session and call it from the session - and of course destroy the session whereever the User-Object get changed (e.g. User change his settings)?

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  • sorting a gridview alphabetically when columns are codes

    - by nat
    hi there i have a gridview populated by a Web Service search function. some of the columns in the grid are templatefields, because the values coming back from the search (in a datatable) are ids - i then use these ids to lookup the values when the rowdatabound event is triggered and populate a label or some such. this means that my sorting function for these id/lookup columns sorts by the ids rather than the textual value that i have looked up and actually populated the grid with (although i do put the ids in the grids datakeys). what i want to do is top be able to sort by the looked up textual value rather than the codes for these particular columns. what i was going to do to get around this was to when the datatable comes back from the search, adding more columns the textual values and doing all the looking up then, thus being able to sort directly from the manually added columns. is there another way to do this? as that approach seems like a bit of a bodge. although i guess it does remove having to do the looking up in the rowdatabound event.... my sorting function works by sticking the datatable in the session and on each bind grabbing the sort column and binding the gridview to a DataView with the sort attribute set to the column - and the direction. thanks nat

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  • Does AutoSproc Scale Well?

    - by nickyt
    We use AutoSproc as our DAL, not my choice, but it was there when I started working at my job. I was wondering if any one had any experience using AutoSproc with large web applications? I'm just curious if it would scale well as our application is growing and we might need to pop it into a web farm at some point. If it doesn't scale well, what would you suggest then since there are several options out there. Any info is greatly appreciated.

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  • Is Accessing USB from web application for cross browser cross os possible at all ?

    - by Ved
    Hey Guys, I am wondering if there is anyway we can achieve this. I heard different things about Silverlight 4 , Java Script or Active X control but not seen any demo of code for any of them. Does anyone know any web component that is available or how to write one. We really like capture client's USB drive via Web and read/write data on it. This has to work for ANY Operating system in Any web browser. Thanks UPDATED What about WPF in browser mode...I read that I can host my wpf apps inside browser and sort of like smart client. Here is a great example of doing this via silverlight 4 but author mentions about possibility of accessing USB on MAC via 1) Enable executing AppleScripts. This option will let us have the same amount of control on a mac machine as we do on a windows machine. 2) Add an overload to ComAutomationFactory.CreateObject() that calls the “Tell Application” command under the scenes and gets a AppleScript object. This option would work extremely well for Office automation. For any other operating system feature, you’ll have to code OS access twice.  I did not quite understand it. Has any tried this ?

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  • How long is too long for a script to execute?

    - by Chris T
    What is the max time do you think is acceptable for a web script (PHP for example) to execute before it starts to become an annoyance for the user (on average)? I always thought that if the user has to wait more than 1 second for the page to load (this of course after images and css have been cached..this rule really only applies for subsequent requests) they would start to get annoyed.

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  • Sql inline query with parameters. Parameter is not read when the query is executed.

    - by fzshah76
    Hi All: I am having a problem with my sql query in c#, basically it's inline query with parameters, but when I run it it tells me that parameter 1 or parameter 2 is not there here is my query declared on top of the page as public: public const string InsertStmtUsersTable = "insert into Users (username, password, email, userTypeID, memberID, CM7Register) " + "Values(@username, @password, @email, @userTypeID, @memberID,@CM7Register ); select @@identity"; this is my code for assigning the parameters, I know I am having problem so I am assigning the params twice: Username =(cmd.Parameters["@username"].Value = row["username"].ToString()) as string; cmd.Parameters["@username"].Value = row["username"].ToString(); In 1 methopd it calls this query and tries to insert to table, here is the code: Result = Convert.ToInt32(SqlHelper.ExecuteScalar(con, CommandType.Text,InsertStmtUsersTable)); Exact error message is: Must declare the variable '@username'.

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  • Converting contents of HtmlTextWriter to a string

    - by Tony_Henrich
    I have a third party tool that creates an img tag through code using HtmlTextWriter's RenderBeginTag, RenderEndTag & AddAttribute methods. I want to get the resulting HTML into a string. I tried the reflection method mentioned here but I get a error "Unable to cast object of type 'System.Web.HttpWriter' to type 'System.IO.StringWriter". The InnerWriter type of the HtmlTextWriter is of type HttpWriter. Any ideas on how to copy the output html into a string?

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  • Read specific div from HttpResponse

    - by Kishan Gajjar
    I am sending 1 httpWebRequest and reading the response. I am getting full page in the response. I want to get 1 div which is names ad Rate from the response. So how can I match that pattern? My code is like: HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create("http://www.domain.com/"); HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse(); Stream response = WebResp.GetResponseStream(); StreamReader data = new StreamReader(response); string result = data.ReadToEnd(); I am getting response like: <HTML><BODY><div id="rate">Todays rate 55 Rs.</div></BODY></HTML> I want to read data of div rate. i.e. I should get Content "Todays rate 55 Rs." So how can I make regex for this???

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  • ActionLink sending a model of a complex type

    - by Xenph Yan
    I'm trying to paginate the results of a "advanced search", I have a complex model that represents the search options; int ZipCode int MinAge int MaxAge Availability bool Monday bool Tuesday ... bool Friday Requirements bool FirstAid bool DriversLicense I'm using; <%: Html.ActionLink("Next »", "Save", "Notification", Model.options)%> Which correctly sends all the data at the first level, but anything that is a sub-object (Availability or requirements) isn't expanded in the URL, all I get is the class name and so I lose most of the search options when I click the link to change to a different page. Any thoughts?

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  • Storing HTML formatted text in database

    - by user279521
    I am building a web site similar to Craigslist. I would like to know how to store the html formatted text (bold / italics / font size etc) in a sql 2008 database? In order words, the user would enter their text, format it with font size, bold etc and save the information. Whats the most efficient way to store that in a database?

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  • Webcombo return error when trying to populate based on another WebCombo

    - by mattgcon
    I have a few webcombo boxes that are hierachial: Continent Country When the form loads everything works fine, when I change the continent the first time, the country repopulates correctly. However if I change the continent a second time I receive an error: Specified argument was out of the range of valid values.Parameter name: The DataValueField of ValueField was not found in the Columns collection. Can anyone tell me why? P.S. This is all I have in the Page_Load event if (!IsPostBack) { this.Load_AreaList(); this.Load_AreasOfInterest(); this.Load_Degrees(); this.Load_GenderList(); this.Load_ParticipationDateModifiers(); this.Load_ProgramCategories(nEventID); this.Load_YesNoList(); this.Load_ParticipantInformation(nParticipantID); }

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  • Scrolling a Div programatically using say Javascript

    - by SARAVAN
    Hi I have a jqgrid which is embedded in a Div. I am deleting records from the grid and reloading the grid using grid.Trigger('reload'). The width of the grid is considerably high so it has a scroll bar. Now I scrolled through the end of the grid horizontally before deleting records. Each time I delete the records and reload the grid, the column headers and their values are slightly misaligned. When I move the scroll bar back to original position or just move the scroll bar slightly they are aligned properly. So I thought its better to move the scroll bar to its inital position when the grid reloads. How can a scroll bar be programatically moved using javascript. Or is there any other way to solve my problem?

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  • Carscading dropdowns

    - by SnowJim
    Hi! I am working with carscading dropdowns in MVC. It apears that I will not be able to easaly create dropdowns on demand, instead I will have to add the dropdowns before sending it to the client. This is how are doing it right now : In the aspx page <%: Html.DropDownListFor(model => model.ModelViewAd.Category1, Model.ModelViewAd.Category1List, "-- Välj kategori --")%> <%: Html.DropDownListFor(model => model.ModelViewAd.Category2, Model.ModelViewAd.Category2List, "-- Välj kategori --")%> <%: Html.DropDownListFor(model => model.ModelViewAd.Category3, Model.ModelViewAd.Category3List, "-- Välj kategori --")%> <%: Html.DropDownListFor(model => model.ModelViewAd.Category4, Model.ModelViewAd.Category4List, "-- Välj kategori --")%> This is rendered like this : <select id="ModelViewAd_Category1" name="ModelViewAd.Category1"> <option value="">-- V&#228;lj kategori --</option> <option value="10">Fordon</option> <option value="15">F&#246;r hemmet</option> <option value="17">Bostad</option> </select> <select id="ModelViewAd_Category2" name="ModelViewAd.Category2"> <option value="">-- V&#228;lj kategori --</option> </select> <select id="ModelViewAd_Category3" name="ModelViewAd.Category3"> <option value="">-- V&#228;lj kategori --</option> </select> <select id="ModelViewAd_Category4" name="ModelViewAd.Category4"> <option value="">-- V&#228;lj kategori --</option> </select> This is how the script on the page looks like : <script type="text/javascript"> $(function () { $("select#ModelViewAd_Category1").change(function () { var id = $(this).val(); var urlAction = "/AdCategory/GetCategoriesByParent1/" + id; $.getJSON(urlAction, { id: id }, function (data) { $("#ModelViewAd_Category2").addItems(data.d); }); }); $("select#ModelViewAd_Category2").change(function () { var id = $(this).val(); var urlAction = "/AdCategory/GetCategoriesByParent1/" + id; $.getJSON(urlAction, { id: id }, function (data) { $("#ModelViewAd_Category3").addItems(data.d); }); }); $("select#ModelViewAd_Category3").change(function () { var id = $(this).val(); var urlAction = "/AdCategory/GetCategoriesByParent1/" + id; $.getJSON(urlAction, { id: id }, function (data) { $("#ModelViewAd_Category4").addItems(data.d); }); }); }); </script> And then I have a included file that contains this : $.fn.clearSelect = function () { return this.each(function () { if (this.tagName == 'SELECT') this.options.length = 0; }); } $.fn.addItems = function (data) { return this.clearSelect().each(function () { if (this.tagName == 'SELECT') { var dropdownList = this; $.each(data, function (index, optionData) { var option = new Option(optionData.Text, optionData.Value); if ($.browser.msie) { dropdownList.add(option); } else { dropdownList.add(option, null); } if ($(this).children().size() < 2) { $(this).hide(); } else { $(this).show(); } }); } }); } The problem I now have is that I need to hide the dropdowns that do not contain any options or do only contains one option. This should be checked when doing a call to the service as well as when the page is sent to the client ("POSTBACK"). What I need is : 4 Dropdowns Only the first dropdown is visible when first entering the page. When selecting a option from dropdown1 the dropdown2 will be populated and so on If there is only 1 option then the dropdown should be hidden If all 4 dropdowns is set and the end-user change dropdown 1, then dropdown2 should be reloaded and the rest be hidden If the user have selected some of the dropdowns(say 1,2 and 3) and hit submit and the page is not accepted on the server side(not valid) the dropdowns should be set exacly as when the user cliked the submit button when the page returns to the user. Any suggestions on this?

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  • How to Login Google webmaster tools with XMLHTTP

    - by darkandcold
    Hello, I have tried so many times but I couldn't get it worked. I am trying to log in google webmaster tools to get Search Queries List (top 20) I used XMLHTTP and AspTear, but no action :(. It says "my browser isnt cookie supported" But how can I log in google webmaster tools via xMLHTTP cookied enables? xmlhttp has any parameter about cookie?

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  • When to use MVC Scaffolding via NuGet vs MVC Scaffolding via MVC3 Tools Update

    - by James
    I am a little confused about the various different "mainstream" scaffolding options for MVC3. There is a NuGet package called MVCScaffolding. It first showed up in Jan 2011, but seems to be active and have recent updates, and be developed by Scott Hanselman, among others. Then in May 2011 came the MVC3 Tools Update. This seems like it incorporated the original scaffolding ideas into an "out of the box" scaffolding options. However, this has not been updated since. So - what is the relationship between these two scaffoldings (if any). Are there cases when one should be used over the other, or is it just a matter of taste? Does Visual Studio 2012 or MVC4 change the game on any of this? Thanks for any input.

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  • VWD Express won't let me add one table!

    - by user530809
    Sorry if this question is too trivial but I really haven't found any related questions and I am shaking too much to think logically. I spent like few hours waiting for SQL Server to finally install (you know, it's Microsoft) and now when I want to add new table to database it says "this feature is not supported by Microsoft Visual Web Developer Express". How could this happen? I mean, what's the point of even letting me use this if I can't even add one table to database, and I won't even know about it until I actually need to do it? Are they really serious or is it just some mistake? Is there any way to get around this problem? I need to create just one simple project with one small table in database but it won't let me, but I can't believe they could actually have nerves to make express edition without such a trivial function, so maybe I just made something wrong and there's actually some way to add this table? Sorry for being so whiny but I'm just fed up with this environment.

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