I have a method:
public IEnumerable<Company> Select()
{
DataClassesCompanyDataContext dc = new DataClassesCompanyDataContext();
System.Data.Linq.Table<Company> company = dc.GetTable<Company>();
Company com = new Company();
return dc.Companies.OrderBy(e => e.company_id);
}
By this I want to bind dropdown.
I am using this method:
private void fillCompanyNameDropdown()
{
PioneerDataAccess.CompanyClass comp = new PioneerDataAccess.CompanyClass();
var objcomp = comp.Select().ToList();
ddlCompanyOff.DataSource = objcomp[0].company_name;
ddlCompanyOff.DataBind();
}
But the problem is that if the company name is pulil then it shows
p
u
l
i
l
So what can I do??
Code for you...this will might resolve your issue
var objcomp = comp.Select().ToList();
ddlCompanyOff.DataSource = objcomp ;
ddlCompanyOff.DataTextField = "company_name";
ddlCompanyOff.DataValueField = "company_name";
ddlCompanyOff.DataBind();
Related
I have a ControlMeasure table that holds information on each control measure and a ControlMeasurepeopleExposed Table that holds a record for each person exposed in the control measure this could be 1 record or many records.
I Have a controller that populates a List view
For each item in the list, Control Measure, I would like to create a string that shows all the People at risk
e.g.
PeopleString = "Employees, Public, Others";
Ive added a foreach in the controller to show what I'm trying to do however I'm aware that this wont work.
The controller is this:
public ActionResult ControlMeasureList(int raId)
{
//Populate the list
var hazards = new List<Hazard>(db.Hazards);
var controlMeasures = new List<ControlMeasure>(db.ControlMeasures).Where(x => x.RiskAssessmentId == raId);
var cmcombined = (
from g in hazards
join f in controlMeasures
on new { g.HazardId } equals new { f.HazardId }
select new CMCombined
{
Activity = f.Activity,
ControlMeasureId = f.ControlMeasureId,
ExistingMeasure = f.ExistingMeasure,
HazardName = g.Name,
LikelihoodId = f.LikelihoodId,
Rating = f.Rating,
RiskAssessmentId = f.RiskAssessmentId,
SeverityId = f.SeverityId,
}).OrderBy(x => x.Activity).ToList();
var cmPeopleExp = new List<ControlMeasurePeopleExposed>(db.ControlMeasurePeopleExposeds).Where(x => x.RiskAssessmentId == raId);
var peopleExp = from c in cmPeopleExp
join d in db.PeopleExposeds
on c.PeopleExposedId equals d.PeopleExposedId
orderby d.Name
select new RAPeopleExp
{
RAPeopleExpId = c.PeopleExposedId,
PeopleExpId = c.PeopleExposedId,
PeopleExpName = d.Name,
RiskAssessmentId = c.RiskAssessmentId,
ControlMeasureId = c.ControlMeasureId
};
var model = cmcombined.Select(t => new FullControlMeasureListViewModel
{
ControlMeasureId = t.ControlMeasureId,
HazardName = t.HazardName,
LikelihoodId = t.LikelihoodId,
Rating = t.Rating,
SeverityId = t.SeverityId,
Activity = t.Activity,
ExCM = t.ExistingMeasure,
//This section here is where I'm struggling
var PeopleString = new StringBuilder();
foreach (var p in peopleExp)
{
PeopleString.AppendLine(p.PeopleName);
{
PeopleExposed = PeopleString,
});
return PartialView("_ControlMeasureList", model);
}
I know I cant directly put this code in the controller but it does represent what I want to do.
You can't foreach within an object initializer (which is what you're trying to do when instantiating FullControlMeasureListViewModel). You can, however, use a combination of string.Join and peopleExp.Select:
var model = cmcombined.Select(t => new FullControlMeasureListViewModel
{
//other props
PeopleExposed = string.Join(",", peopleExp
.Where(p => p.ControlMeasureId == t.ControlMeasureId)
.Select(p => p.PeopleExpName));
//other props
});
I want to add the content of the combobbox into my database, but it doesn't work. The content of my combobox is from the table 'Categories' who's joined with the table 'Products'. I've tried many things I have errors of conversion :
Here's my code :
Product p = new Product();
p.ProductName = txtNom.Text.Trim();
p.ProductDescription = txtDesc.Text.Trim();
p.ProductQuantityUsed = Convert.ToInt32(numQteUsed.Value);
p.ProductQuantityNew = Convert.ToInt32(numQteNew.Value);
p.CategoryID = cboCat.SelectedText.ToString();
db.Products.Add(p);
db.SaveChanges();
//Combobox
public void FillCbCategories()
{
SamsonEntities db = new SamsonEntities();
cboCat.Items.Clear();
var listCat = (from cats in db.Categories
select new CategoryDisplay()
{
CategoryID = cats.CategoryID,
CategoryName = cats.CategoryName
}).ToList();
for(var i=0;i<listCat.Count;i++)
{
cboCat.Items.Add(listCat[i]);
}
}
Judging by your comments, your combobox is not binded correctly to data you send to it.
You could try setting ValueMember and DisplayMember:
cboCat.ValueMember = "CategoryID";
cboCat.DisplayMember = "CategoryName";
in your method, like this:
public void FillCbCategories()
{
SamsonEntities db = new SamsonEntities();
cboCat.Items.Clear();
var listCat = (from cats in db.Categories
select new CategoryDisplay()
{
CategoryID = cats.CategoryID,
CategoryName = cats.CategoryName
}).ToList();
for(var i=0;i<listCat.Count;i++)
{
cboCat.Items.Add(listCat[i]);
}
cboCat.ValueMember = "CategoryID";
cboCat.DisplayMember = "CategoryName";
}
public ActionResult CreateApp(Guid id)
{
SMICParkingLotApplicationEntities1 dbb = new SMICParkingLotApplicationEntities1();
ApplicationDATA applicationData = (from a in dbb.ApplicationDATAs
where a.ApplicationID == id
select new ApplicationDATA
{
ApplicationID = a.ApplicationID,
BrandModel = a.BrandModel,
CrNo = a.CrNo,
OrNo = a.OrNo,
DatePosted = a.DatePosted,
PoR = a.PoR,
PlateNo = a.PlateNo,
VehicleType = a.VehicleType
}).FirstOrDefault();
ApplicationSlotViewModel applicationSlotViewModel = new ApplicationSlotViewModel
{
ApplicationDatas = applicationData,
Application = new Application()
};
return View(applicationSlotViewModel);
Dunno what to do it always shows this error Cannot be constructed in a LINQ to Entities query. Error Help Plss..
If the type of ApplicationDatas in your ViewModel is ApplicationDATA, you can set it directly with the result of your query:
var applicationData =dbb.ApplicationDATAs.FirstOrDefault(a=>a.ApplicationID == id);
ApplicationSlotViewModel applicationSlotViewModel = new ApplicationSlotViewModel
{
ApplicationDatas = applicationData,
Application = new Application()
};
You can't project the result of your query using an existing entity type. Check the post that I quote in my comment
Remove className after new keyword. Try below code.
var applicationData = (from a in dbb.ApplicationDATAs
where a.ApplicationID == id
select new
{
ApplicationID = a.ApplicationID,
BrandModel = a.BrandModel,
CrNo = a.CrNo,
OrNo = a.OrNo,
DatePosted = a.DatePosted,
PoR = a.PoR,
PlateNo = a.PlateNo,
VehicleType = a.VehicleType
}).FirstOrDefault();
~ error says image seen below i don't know why is it? is there another way to pick up the data without the error? i'm using distinct or group by.
var query = (from i in SFC.TransacRRrecords where i.POPRCTNM == p
group i by new {
i.VendorID,
i.VENDNAME,
i.SUBTOTAL,
i.PymtrMID,
i.TRUCKNO,
i.REMARKS,
i.VPNum,
i.VPDate,
i.AmountInWords
} into grp
select new
{
Vcode = grp.Key.VendorID,
Vdesc = grp.Key.VENDNAME,
Vsubtotal = grp.Key.SUBTOTAL,
Vterms = grp.Key.PymtrMID,
Vtruckno = grp.Key.TRUCKNO,
Vremarks = grp.Key.REMARKS,
Vvpno = grp.Key.VPNum,
Vvpdate = grp.Key.VPDate,
Vamntword = grp.Key.AmountInWords
}).FirstOrDefault();
ListViewItem List = new ListViewItem(query.Vcode);
List.SubItems.Add(query.Vdesc);
List.SubItems.Add(string.Format("{0:n2}", query.Vsubtotal));
List.SubItems.Add(query.Vterms);
List.SubItems.Add(query.Vtruckno);
List.SubItems.Add(query.Vremarks);
List.SubItems.Add(query.Vvpno);
List.SubItems.Add(query.Vvpdate);
List.SubItems.Add(query.Vamntword);
deletedRRHeaderList.Items.AddRange(new ListViewItem[] { List });
I have a datagridview in my form. It fills by selecting country with cities of country.I have set the property (AllowUsersToAddRow = True)
but when i run my project user can't add or edit or delete any row.I checked it.It is not readonly(readonly = false) and It is enable (Enabled = true)
What's the problem?
Code of fill datagridview:
private void cmbCountryValues_SelectedIndexChanged(object sender, EventArgs e)
{
dgvCityValues.Enabled = cmbCountryValues.SelectedIndex>=0;
if (!dgvCityValues.Enabled)
{
dgvCityValues.DataSource = null;
return;
}
int CountryId = int.Parse(cmbCountryValues.SelectedValue.ToString());
dgvValues.DataSource = from record in Program.dal.Cities(CountryId) select new { record.City};
}
If you find this question useful don't forgot to vote it.
To give a simplified example, if I do the equivalent of your query, such as:
var cities = new City[] { new City("New York","NY"), new City("Sydney","SY"), new City("London","LN") };
dataGridView.DataSource = cities;
I get the same result as you - no option to add new rows, but if I change to BindingList<T> and set this to AllowNew it all works:
var cities = new City[] { new City("New York","NY"), new City("Sydney","SY"), new City("London","LN") };
var citiesBinding = new BindingList<City>(cities);
citiesBinding.AllowNew = true;
dataGridView.DataSource = citiesBinding;
EDIT - with a solution for your particular example:
private class City
{
public string Name { get; set; }
}
private void cmbCountryValues_SelectedIndexChanged(object sender, EventArgs e)
{
dgvCityValues.Enabled = cmbCountryValues.SelectedIndex >= 0;
if (!dgvCityValues.Enabled)
{
dgvCityValues.DataSource = null;
return;
}
int CountryId = int.Parse(cmbCountryValues.SelectedValue.ToString());
var queryResults = from record in Program.dal.Cities(CountryId) select new City { Name = record.City };
var queryBinding = new BindingList<City>(queryResults.ToList());
queryBinding.AllowNew = true;
dgvValues.DataSource = queryBinding;
}
Note that a) I had to change the anonymous type in the query select into a concrete type City and also change the IEnumerable<T> returned by Linq query to an IList<T> compatible type to create the BindingList<T>. This should work, however :)