I'm using linq to sql,everything seems to be working fine except one thing,I'm showing any mapped float fields from my db tables as "Double?" instead of "Double", and when binding to a datagrid, any of those "Double?"fields don't show.If I iterate through the items and spit out the property,the float value is indeed there and properly returned.
View 3 RepliesI have a gridview that is supposed to refresh using
gridView.DataSource = null;
gridView.DataBind();
before binding it to the updated datasource (which is a DataTable).and then
gridView.DataSource = newDataTable;
gridView.DataBind();
The problem is that it won't clear and from time to time I get a table on top of another table (the one on top is the updated one, the bottom one is the data before the 2nd DataBind).
I have a DropDownList on my webpage using an Access Database to fill it. However in my database record there a multible values with the same name.
My situation now:
MyDropDownList1
-ValueBaarlo
-ValueBaarlo
-ValueVenlo
-ValueMaasbree
-ValueMaasbree
-ValueMaasbree
-ValueMaasbree
What I want:
MyDropDownList1
-ValueBaarlo
-ValueVenlo
-ValueMaasbree
I only want to show every value (name) just once!
I have a SQL Server table with a number of fields that are defined with the "Float" data type. I'm running a simple query to retrieve the data from this table and use it to populate a Data Table in my C#.net application.
I just discovered that the data type of the Data Table fields is Double, not Float as I expected. As such, when I store a value like 0.157 it ends up getting stored like this: 0.15700000524520874
I'm aware that such extra "noise" occurs when such a conversion occurs. My major question has to do with why .Net didn't set the Data Type to Float (ie. Single) when the table was first populated?
I have problem in rounding the double value from 1.5 to 1.50. However I have tried different ways converting to decimal, Integer and also string.Format, still I gettting 1.5 instead of 1.50.
Variable will have value as 1.5 and expected output will expect 1.50 not 1.5. I am not able to get 1.50 as value.
how to format a double value 2.0 to $02.00
and 10.0 to $10.00
I am using like string.Format("{0:C}",doublevalue);
but the numbers less than 10 are coming with out a zero in the front. like $2.0
Since both are acceptable by HTML as well as languages like ASP.NET and PHP when using attributes or strings, why is it that some people use single quotes and double quotes interchangeably? It is my understanding that it is syntactically correct to use double quotes where possible, single when you need to embed a double quote for inline logic. Is there something I am missing? For examples: HTML
<a href='[URL]
PHP
<? echo 'Hello World!'; ?>
ASP.NET
<form id='myForm' runat='server'></form>
I have all my errors handling up and going but now I wish to change the error messages that they display for empty integers.I have been going through my codes but I can't to change that. For now, the error message for all numeric values are "A values is required" and I wish to change it to "<TextBoxName> cannot be empty".
View 10 RepliesI'm trying to get my URLs to contain double quotes (") and other special characters such as <, > etc in my MVC2 application. Here's an example:
[URL]
The above would throw up a System.ArgumentException: Illegal characters in path.
I am trying to find two lots of expressions on a page and extract them. I currently can do one and extract the text from between certain tags with the following code:
Regex r = new Regex("<tag>([^<]*)</tag>");
but im trying to do two lots... for example...:
Regex r = new Regex("<tag>([^<]*)</tag>" + "<ad ahs="e">([^<]*)<ad ahs=h>");
If I am using AD authentication for my internal ASP.NET app how can I enable that that same AD User is authenticating on the internal web service that is being called by that internal ASP.NET application?
View 2 Repliesim getting a value from the database. it came out an error saying "Conversion from DBNULL to Double is not Valid." anyone,
[code]...
im getting a value from the database. it came out an error saying "Conversion from DBNULL to Double is not Valid."
Public Function Total() As Double
Dim Total As Double
Dim strConn As String
strConn = ConfigurationManager.ConnectionStrings("***").ToString
[Code]....
I need to send 4 double values to a webservice. Which is the best way to send. Array or Arraylist. I read some where that Arraylist has issues to serialize.I am using the following code on the client .aspx page to construct the arraylist.
Code:
ArrayList CapPlan = new ArrayList();
CapPlan .Add(Convert.ToDouble(TextBox1.Text));
CapPlan .Add(Convert.ToDouble(TextBox2.Text));
CapPlan .Add(Convert.ToDouble(TextBox3.Text));
CapPlan .Add(Convert.ToDouble(TextBox4.Text));
After this arraylist CapPlan is constructed, what would be the syntax to send this arraylist to a webmethod?
DataSet dataSetCapitalPlan = clientProxyobject.CapStock(CapPlan.ToArray(double));
And on the webservice side how can I receive this arraylist that was sent?
[WebMethod]
public DataSet CapStock(string As_of_Date, Array CapPlan)
{
}
i have a double, the decimal place isn't fix (8-?) i want to fix the decimal place to six (for example: 1,234567). this is my double:
CStr(score)
i am writing the following connection string into web.config but it giving me error.what is the correct way to write it?
<add name="stargaze_stargazeConnectionString1" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename="D:Work At DS19th Janmyastrolove.com_newApp_DatadbName.mdf";Integrated Security=True;User Instance=True"/>
I am using SQL Server 2008 Web Edition and it seems my SQL queries are automagically having the double quotes replaced with ' + CHAR(34) + '. I am trying to pin down why this is happening, I am using Delphi with ASP.NET and using the ADO.NET object for the SQL.
Has anyone come across this before?
how this string concatenation taking place? i am really confuse what is happening why that slash i there and how the double quotes are used
SessionStateItemCollection items = new SessionStateItemCollection();
items["LastName"] = "Wilson";
items["FirstName"] = "Dan";
foreach (string s in items.Keys)
Response.Write("items["" + s + ""] = " + items[s].ToString() + "<br />");
Response.Write("items["" + s + ""] = " + items[s].ToString() + "<br />");
I am taking over the code of another person. This person is allowing double clicks to occur on RadGrids (Telerik Control).. I personally hate the idea of allowing double clicks in a web application. I tihnk it is not natural.
Is there any good argument against double clicks in web apps? Or am I wrong and double clicks in web apps are good for some reason?
How would I put quotes on the DataLink control so it outputs " computerfolder" (i put a space in there between the \ so it would show up) instead of just\computerfolder it generates a link but if the folder name has a space it in the link breaks so i am trying to put double quotes on it so it creates a link even if there are spaces.
[Code]....
I'm working in a Repeater over blog posts and I'm displaying a ShareThis JavaScript piece at the bottom. The Title and URL of the post are being sent to JS. In one test case, the title of a post has a single quote, e.g. Mark's test post Since I need to preserve that single quote when being sent to ShareThis, I need to wrap that JavaScript string in double quotes, however the string is being bound via a Literal and I cannot wrap the literal in double quotes: This is want I want but DOES NOT WORK:
SHARETHIS.addEntry({ title: "<asp:Literal ID="ltlTitle" runat="server" />", etc..
I can only wrap the literal with single quotes like so:
SHARETHIS.addEntry({ title: '<asp:Literal ID="ltlTitle" runat="server" />', etc..
But that will result in bad front-end code:
SHARETHIS.addEntry({ title: 'Mark's test post', etc..
How can I encode this correctly or somehow wrap the control in double quotes? I'm aware of HttpUtility.HtmlEncode and Server.HtmlEncode
How can I put " in this regular expression
Regex PhRegEx = new Regex(@"^[a-zA-Z0-9-+_,(): ]*$", RegexOptions.Compiled);
i am trying return a double value from controller action. when i alert(result) it works well but when i return a function it did not work. alert undefined value.
//this is action
public ActionResult GetPrice(int id)
{
double price = ProductList.Where(d => d.ID.Equals(id)).Single().Price;
return Json(price, JsonRequestBehavior.AllowGet);
}
when i click $('#btnAdd') i wanna get price
$(document).ready(function () {
$('#btnAdd').click(function () {
//var itemPrice = GetPrice();
alert(GetPrice()); // this return undefşned value........
im using asp.net and somehow my escape characters dont seem to work
string testing = "my name is "abc"";
this gives the output : my name is "abc"
ive read all the tutorials, everywhere it says that ive to put " to use double quotes inside a string but i have no idea why my system isnt accepting the escape character.
I am getting some float values in front end from back end.For example suppose I get 7.770000 the through convert.double I am converting it into 7.77.This is perfectly fine.But when I have 0.00005 then convert.double is displaying it like 5E-05, which is not fine.
View 3 Replies