In Infragistics:WebCurrencyEditor controller, cannot insert negative values. I have tried with
System.Globalization.CultureInfo ci = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");
ci.NumberFormat.CurrencyNegativePattern = 1; // "-$n";
NumBox1.Culture = ci;
but this is not working for me.
How to do this?
use NumBox1.MinValue=-999999999; I have solved the problem.
Related
I am not able to fetch a max value from a number field in AppMaker. The field is filled with unique integers from 1 and up. In SQL I would have asked like this:
SET #tKey = (SELECT MAX(ID) FROM GiftCard);
In AppMaker I have done the following (with a bit help from other contributors in this forum) until now, and it returns tKey = "NaN":
var tKey = google.script.run.MaxID();
function MaxID() {
var ID_START_FROM = 11000;
var lock = LockService.getScriptLock();
lock.waitLock(3000);
var query = app.models.GiftCard.newQuery();
query.sorting.ID._descending();
query.limit = 1;
var records = query.run();
var next_id = records.length > 0 ? records[0].ID : ID_START_FROM;
lock.releaseLock();
return next_id;
}
There is also a maxValue() function in AppMaker. However, it seems not to work in that way I use it. If maxvalue() is better to use, please show :-)
It seems that you are looking in direction of auto incremented fields. The right way to achieve it would be using Cloud SQL database. MySQL will give you more flexibility with configuring your ids:
ALTER TABLE GiftCard AUTO_INCREMENT = 11000;
In case you strongly want to stick to Drive Tables you can try to fix your script as follow:
google.script.run
.withSuccessHandler(function(maxId) {
var tKey = maxId;
})
.withFailureHandler(function(error) {
// TODO: handle error
})
.MaxID();
As a side note I would also recommend to set your ID in onBeforeCreate model event as an extra security layer instead of passing it to client and reading back since it can be modified by malicious user.
You can try using Math.max(). Take into consideration the example below:
function getMax() {
var query = app.models.GiftCard.newQuery();
var allRecords = query.run();
allIds = [];
for( var i=0; i<allRecords.length;i++){
allIds.push(allRecords[i].ID);
}
var maxId = Math.max.apply(null, allIds);
return maxId;
}
Hope it helps!
Thank you for examples! The Math.max returned an undefined value. Since this simple case is a "big" issue, I will solve this in another way. This value is meant as a starting value for a sequence only. An SQL base is better yes!
EDIT:
Also like to know:
what if; if i have a data that is not upper case? or have mixed of upper or lower case? how you will handle this?
i am trying to query my resultset
IQueryable<CategoryObject> filteredCategories = _catRepo.GetAllEmployees();
filteredCategories = filteredCategories.Where(c=> c.CategoryName.Contains("Blocks"));
However, i don't get any result becuase the CategoryName is For(Upper Case) in the database. I have no idea how to use contains to filter case insensitive string? I want basically if someone type like;
filteredCategories = filteredCategories.Where(c=> c.CategoryName.Contains("Blocks"));
OR
filteredCategories = filteredCategories.Where(c=> c.CategoryName.Contains("blocks"));
OR
filteredCategories = filteredCategories.Where(c=> c.CategoryName.Contains("blocKS"));
The result should be the same
Try
filteredCategories = categoriesList.Where(c=> c.CategoryName.ToUpper().Contains("BLOCKS"));
That'll remove any case issues.
You can also try:
filteredCategories = categoriesList.Where(c=> c.CategoryName.IndexOf("blocks", StringComparison.OrdinalIgnoreCase) != -1);
First way, as said before - use ToUpper():
var filterString = "bLoCkS"
filteredCategories = categoriesList.Where(c=> c.CategoryName.ToUpper().Contains(filterString.ToUpper()));
Another way - use Case Insensetive collation (Changing SQL Server collation to case insensitive from case sensitive?) in your database (table, field).
I want to extract part of a collection to another collection.
I can easily do the same using a for loop, but my linq query is not working for the same.
I am a neophyte in Linq, so please help me correcting the query (if possible with explanation / beginners tutorial link)
Legacy way of doing :
Collection<string> testColl1 = new Collection<string> {"t1", "t2", "t3", "t4"};
Collection<string> testColl2 = new Collection<string>();
for (int i = 0; i < newLength; i++)
{
testColl2.Add(testColl1[i]);
}
Where testColl1 is the source & testColl2 is the desired truncated collection of count = newLength.
I have used the following linq queries, but none of them are working ...
var result = from t in testColl1 where t.Count() <= newLength select t;
var res = testColl1.Where(t => t.Count() <= newLength);
Use Enumerable.Take:
var testColl2 = testColl1.Take(newLength).ToList();
Note that there's a semantic difference between your for loop and the version using Take. The for loop will throw with IndexOutOfRangeException exception if there are less than newLength items in testColl1, whereas the Take version will silently ignore this fact and just return as many items up to newLength items.
The correct way is by using Take:
var result = testColl1.Take(newLength);
An equivalent way using Where is:
var result = testColl1.Where((i, item) => i < newLength);
These expressions will produce an IEnumerable, so you might also want to attach a .ToList() or .ToArray() at the end.
Both ways return one less item than your original implementation does because it is more natural (e.g. if newLength == 0 no items should be returned).
You could convert to for loop to something like this:
testColl1.Take(newLength)
Use Take:
var result = testColl1.Take(newLength);
This extension method returns the first N elements from the collection where N is the parameter you pass, in this case newLength.
When setting a Lookup value in CRM everything works fine if you don't want to change anything, or if you want to set it to a new value. However, when you want to UNSET the current value, the way to do so is unclear.
For example,
house.new_associatepastorid = new HLCImport.CrmSdk.Lookup();
house.new_associatepastorid.type = EntityName.contact.ToString();
house.new_associatepastorid.value = Guid.Empty;
Does not work.
Setting the IsNull and IsNullSpecified properties is absolutely fine. For simpler code, all of the standard types has a static member named Null. So in this case you could have used Lookup.Null.
I found the answer in the SDK. You have to set the isnull value = true, as well as set the isnullspecified = true. You also need to not set the type or the value fields. So the code would be:
house.new_associatepastorid = new HLCImport.CrmSdk.Lookup();
house.new_associatepastorid.IsNullSpecified = true;
house.new_associatepastorid.IsNull = true;
How do we assign null value to int column in LINQ.
eg.
SQLDBDataContext sqlD = new SQLDBDataContext();
var result = from p in sqlD.loadsRadius(Convert.ToInt32(Request["radius"]), .....
here if Request["radius"] is null gives an error.
I could pass 0 via this but I need to change in many already existing procedures.
Thanks in advance.
Anil
You need to case the int to a null, eg:
var result = from p in sqlD.loadsRadius(string.IsNullOrEmpty(Request["radius"]) ? (int?)null : int.Parse(Request["radius"]);
If the exception is a FormatException, my guess is that the value returned by Request["radius"] is actually the string "null". If Request["radius"] actually returned null, Convert.ToInt32() would return zero. You may try using using int.TryParse() to avoid the exception.
as suggested by Codechef..
int radius = -1;
int.TryParse(Request["radius"],out radius)
if(radius > 0) // you can remove this clause if you don't want this
{
SQLDBDataContext sqlD = new SQLDBDataContext();
var result = from p in sqlD.loadsRadius(radius)
}
Look into nullable types: Here.
You could use ?? operator like this:
Convert.ToInt32(Request["radius"] ?? "0")
If Request["radius"] equals to null, it will return "0" instead.