StringBuilder.Append using float is truncating the value. What is it converting to and how can I stop it from truncating?AttributeOrder is type float and I am losing precision when building the string.
if ( AttributeOrder != 0 )
{
if ( Result.Length > 0 )
Actually I am wishing to use StringBuilder to Append DataTable as given below:
[Code]....
correct the line sb.Append(dt.Rows[i].Item(k, DataRowVersion.Current).toString()); to eliminate the following error:
'System.Data.DataRow' does not contain a definition for 'Item' and no extension method 'Item' accepting a first argument of the type 'System.Data.DataRow' could be found (are you missing a using directive of an assembly reference?).
I've a string builder, and I need to convert it to a string, and then trim any commas if there are any there (I need to get rid of them because I'm building an sql query).
Here's what I'm doing:
myStringBuilder.ToString().TrimEnd(',');
Why isn't this working??? It's not trimming any commas at the end!
I have a loop where i create some string value based on certain conditions. I did place StringBuilder object outside of the loop and each time i have new row in loop i need to clear StringBuilder appended values for this row.
I'm building a product catalog which displays between 50/100 products per page.Since I want to have different browse sections on my site I've put each product into a UserControl. Well, not the products themselves ofcourse, but some labels, divs and images. I then set its properties in run-time when processing the database results. So the advantage is that I only have to change the product control at 1 place for the whole site. I'm putting the controls in a page using LoadControl in a loop.
However the pages are not loading quite as fast as other pages which process the same db query and output the same html using a StringBuilder. And since I want my site to perform well if/when it receives some decent traffic I'm worried about this. I haven't done any benchmarkings yet but I clearly see the difference. My questions to you is 'Are there any alternatives which are faster then using LoadControl with a customcontrol but are easily maintained (or atleast in 1 location)?'I was thinking of:
Creating a customcontrol (although I've never done it and don't know 100% if this will speed things up)Continue with the StringBuilder method and put the CreateProduct in my base class
[edit]Code[/edit]
I don't have the excact usercontrol code here but I will edit this post when I get home..but here is the simplified idea:
1) Getting my database result (using Subsonic 2.2 as my DAL)
DAL.ProductCollection coll = new DAL.ProductCollection(); if(coll.count > 0) { foreach(DAL.Product item in coll)[code]....
My usercontrol itselves just consists of 3 Literal controls and 1 Image control.
Im developing a web application in asp.net where i have gridview with some text box controls in it.In runtime we are creating a new row dynamically by clicking add button .To insert data into the database.i used a stringbuilder instead of string becoz the data what i have to insert into database is more.but i am gettin the following error No mapping exists from object type System.Text.StringBuilder to a known managed provider native type. in database the datafield column datatype is varchar(max).
basically the name of my package is pkg_test and it is in the finance schema and the name of the function in the package is called get_nameHowever everything I run that function, it is gives me an error.
The page for sure displays a TextBox on the browser which is easily accessible through JavaScript...but what i want is the control to be available on the Server Side too...so that when the page is posted back to the server i can easliy obtain the value that has been entered by the user into the textbox.
if i change the code and put checkbox between the <td> tag. when i click the save button, how can i check the ticked checkbox and get the value of the CHECKBOX_1 in cs?
I have been led to believe that the performance benefits of using StringBuilder over normal concatenation means that you should always use stringbuilder when concatenating more than 2 strings. However when I test them this does not seem to be the case. Take these 2 methods
public void TestMethod5() { for (int i = 0; i < 1000; i++) { string t = string.Empty; t = "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd" + "dddddddd"; ; } } public void TestMethod6() { for (int i = 0; i < 1000; i++) { StringBuilder sb = new StringBuilder(); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); sb.Append("dddddddd"); string t = string.Empty; t = sb.ToString(); } }
TestMethod5 takes 0.03 milliseconds so complete but TestMethod6 takes 1.43 milliseconds What is going on?
in my webapp I've created and populated a stringbuilder for a csv file. Normally I write it directly to the response object for the user to download through the browser.However, now I want to save it to a SQL DB image field. Is there a direct way to stream it in? Or do I have to save it to file first, then read it back in?
i can get the checkbox value from the stringBuilder by request.form["field_id"].toString(), but how can i make the checkbox checked property to checked using C#.
I have a web application which talk to Oracle for Database Operations.I want to what will be the equivalent datatype for float in c#.ie for Oracle Varchar2 , in c# we can give string like that for Float in oracle what will we give in C#
When i am trying to update a text box value to data base ,say 3.1 it is getting updated as 3.09999... when iam running the stored procedure in query analyzer it is updating correctly. When i am updating the same from page , it is giving this problem. Iam using sql server 2005.
I want to create new string or stringbuilder based on condition; Example . I am updating a count variable "i"; if i = 100, i need to create a string or stringbuilder; if else i = 200 i need to create a new string or stringbuilder; if else i = 300 i need to create a new string or stringbuilder; and so on how i can achive this?