Given:
string removeRows = "";
int i = 0;
foreach (var row in userStats)
{
if (row.OrderRow.RegistrationType == "Want Removed")
{
removeRows = removeRows + i.ToString() + ",";
}
i++;
}
what's the Lambda syntax to execute the removal?
Just wanted to get clarification that methods like HTML.TextBoxFor() exist ONLY for the benefit of compile-time parameter type checking.
From my experimentation, these appear to ONLY accept a simple "expression lambda" syntax, which simply provides reference to a member property, and will not allow more robust use of "statement lambda" syntax. Other places in the .NET framework where lambda's are used, "statement lambda" syntax can be used, such as :
( x => { x += 7; if(x < 9) return x * 3; } )
... in effect, multiple statements of "in-line" code.
The type checking benefit is great - I just wanted to understand if there is additional capability which I have not recognized.
I m working on MOSS 2007. My project requirment is to fetch the data from list to gridview with check boxes in front of all rows. when we click the checkbox infront of rows then that rows will be move to another gridview & remove from first gridview. Then I have to search the rows by location. following is my code it fetches the list in gridview & move rows from one gridview to anothe
1. how to remove selected rows from gridview & list?
how to search by location.
[code]....
I have two lists. lst contains ViewState Data i.e All the records of the gridview & second lstRank contains the list of integer(i.e ID) for only those records which are marked as checked (i.e Gridview contains a columns for checkbox). Now i want to update the lst bool status depending upon integer ID of lstRank. How it can be achieved by lambda expression
List<Tuple<int, string, bool>> lst = (List<Tuple<int, string,bool>>)ViewState["gvData"];
List<int> lstRank = gvDetails.Rows.OfType<GridViewRow>().Where(s => ((CheckBox)s.FindControl("chkSelect")).Checked)
.Select(s => Convert.ToInt32(((Label)s.FindControl("lblRankCD")).Text)).ToList();
I am selecting the checked rows from Gridview. To achieve this i have written a lambda expression using dynamic keyword.
var dn = gvLoans.Rows.OfType<dynamic>().Where(s => s.FindControl("chkSelect").Checked == true).Select(s => s.FindControl("lblCD")).ToList();
I want the output of this in List. Can it be achieved by extending the query or i have to write foreach statement.
I have 2 tables; they have a many-to-many relationship. One is called Blog the other is Tag.
A Blog can contain a List of Tag objects. How can I go about getting all blogs that have a passed in tag name using lambda expressions?
How do I remove the syntax error 'Addapplication_Click'
Source Error:
[Code]....
Source File: I:WebsitesCMPHostJewelite BackupDefault.aspx Line: 125
Associated with the following front page snippet
[Code]....
A 'High Res' snap shot of the 'Error List' is available at
http://cforedu.com/snap_2.pdf Question, how do we debug and remove the syntax errors found in the .net button codes (Default.aspx.vb)?
[Code]....
I have a table with 2905 rows. I want to update one column with 2905 values. The values are all different, and they are just stacked one to a line with a line break. One on top of the other like so:
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
NULL
http://www.cargoarrainger.com/page6.html
http://www.iceretail.com/resources/link-7953
NULL
NULL
How would I write this query? Do they have to all be separated by commas? What about NULLS?
update tblAdvanceLinkBanned set ReciprocalURL=?
I have made a custom DataTable
Dim dt As New DataTable("RizPardakht")
Dim RowID As New DataColumn("tbz_GatiPardakhtID")
Dim FishNo As New DataColumn("tbz_FishNo")
[code]...
I have 2 datasets as shown below,
dsDBFFulfillment = conn.GetDBFDataSet(ReminderQry);
dsDBHcniID = conn.GetSQLDataSet("spGetRemindpostcards", null, ConnectionType.SRRDConnection);
I have a result in dsDBFFulfillment,Consider the field HcnID,Name,Address In the second dataset dsDBHcniID i have only HcnID.
Now in the third dataset i want a result such that,
1.The records in the dataset dsDBHcniIDshould be removed from dataset dsDBFFulfillment by checking HcnID.
Something like this, dsDBFResult = dsDBFFulfillment.Tables[0].Rows.Remove(("HcnID='" + dsDBFFulfillment["HcnID"] ));
Does anyone know how to dynamically add and remove rows in a table triggered by a button click from the backend (in c#) using asp.net?
Here's how it might be done in javascript, is there any way to do this in the asp.net framework?
[URL]
i have a asp:TextBox control on the page. i'm setting it to a TextMode="MultiLine", I am not setting a number of rows or columns. I am setting a width and height in CSS for the control.
asp.net is still adding, what i assume is a default, rows and cols attributes on the rendered control. cols="20" and rows="2" this isnt an issue in any sane, browser, but in IE the CSS height is ignored and only 2 rows of space is show.
How can I prevent these attributes from showing up on the rendered control?
Edit:
This is an issue only in IE8 in compatibility mode, IE7 and IE6. I'm not worried about IE6, but IE7 needs to work.
I'm having hard time understanding the following C# code. This code was taken from Pro ASP.NET MVC 2 Framework by Steven Sanderson. The code esentially creates URLs based on a list of categories. Here's the code:
Func<string, NavLink> makeLink = categoryName => new NavLink {
Text = categoryName ?? "Home",
RouteValues = new RouteValueDictionary(new {
controller = "Products",
action = "List",
category = categoryName,
page = 1
}),
IsSelected = (categoryName == currentCategory)
A lot of stuff is going on here. I'm guessing it's defining a function that expects two parameters of type string, and NavLink. Then I see the Lambda categoryName => new NavLink etc.... I think all it's doing is creating an instance of NavLink. The function is then called in the same Controller action:
// Place home link on top
List<NavLink> navLinks = new List<NavLink>();
navLinks.Add(makeLink(null));
// Add link for each distinct category
var categories = productsRepository.Products.Select(x => x.Category.Name);
foreach (string categoryName in categories.Distinct().OrderBy(x => x))
navLinks.Add(makeLink(categoryName));
I can tell that it's making a list of NavLink. I don't understand why Steven Sanderson wrote it this way though. Couldn't he have written something like:
var categories = productsRepository.Products.Select(x => x.Category.Name);
foreach (string categoryName in categories.Distinct().OrderBy(x => x))
{
var newlink = new Navlink{
text = categoryName,
RouteValues = new RouteValueDictionary(new {
controller = "Products",
action = "List",
category = categoryName,
page = 1
}),
IsSelected = (categoryName == currentCategory)
}
navLinks.Add(newlink);
}
Is there an advantage to doing it Steven's way versus my way?
I have the following markup controls:
[Code]....
I am creating a generic list of objects using this syntax:
[Code]....
I have a DataTable available with me which contains thousands of rows. There is a column called EmpID which is containing '0' for some of the rows. I want to remove them from my current DataTable and want to create a new correct DataTable. I cannot go row by row checking it since it contains huge amount of data.
View 6 Repliessuppose I am having sample table like below.
I need to remove duplicate orderid's and i need all column names also while doing query.
note that rows are not in the order. Order will be like this only.
I am able to get the records which are duplicated but not able to delete further.
In this case how to delete?
My consideration is that only distinct orderid's should be there in the table. Not bothering about the which orderid row is being deleted.
name orderid destination
a 1 aaa
d 2 ddd
b 1 bbb
f 3 fff
e 2 eee
g 4 ggg
h 3 hhh
c 1 ccc
i have an table as products colums productid, productname, product value, the values in the colums are .
productid productname productQuantity
1 a1 2
1 a2 2
1 a3 2
1 a4 2
1 a5 2
2 a21 3
2 a22 3
2 a23 3
so when i bind in gridview i need to get the output like this
productid productname productQuantity
1 a1,a2,a3,a4,a5 2
2 a21,a22,a23 3
so how can i get the data in this format when i bind to gridview.
I want to remove rows (which contains text) of a gridview on a button click..
View 5 RepliesI am using below article provided by you:
[URL]
I need to provide Remove button with every row added to grid. So that only the current row get removed on remove button clicked of that row.
I have 2 gridview with add/remove buttons between them. I want the user to select an item in one gridview and based on the button clicked I need to remove the row from one gridview and add it to the other. I can idenfity which row is selected but I don't know how to remove/add the rows.
View 6 RepliesI have already stored value of author id in list item value while page loads. but when I change index of drop down list to view author information error is shown. I tried to debug using check points and it seems Sqlreader isn't reading database second time.
Incorrect syntax near '='..
Here is my code
[code].....
I know the employee's ID and would like to remove it from my List<Employee> listOfEmployees.
The listOfEmployees.Remove seems to require index of the item to be removed.
I want to remove duplicates from this list:
List<Dictionary<string, object>> val = new List<Dictionary<string, object>>();
It does not work if I apply Distinct() in this way:
List<Dictionary<string, object>> result = val.Distinct().ToList<Dictionary<string, object>>()
Update: Problem is now solved. I used the MySQL union command to read table from the database.