using winform I am trying to display from database the fooditems that are grouped under categories into a radlistview using that below code; but the Problem that it is showing the main Groups but not showing the items under it.
ZalaqEntities1 zlq=new ZalaqEntities1();
List<cat> cats = zlq.cats.ToList();
radListView1.Items.Clear();
radListView1.Groups.Clear();
radListView1.EnableGrouping = true;
radListView1.ShowGroups = true;
for (int i = 0; i < cats.Count(); i++)
{
radListView1.Groups.Add(new ListViewDataItemGroup());
radListView1.Groups[i].Value = cats[i].catname;
radListView1.Groups[i].Key = cats[i].catid;
}
List<fooditem> fooditems = zlq.fooditems1.ToList();
for (int j = 0; j < fooditems.Count(); j++)
{
ListViewDataItem myitem = new ListViewDataItem();
myitem.Value = fooditems[j].itemname;
myitem.Key = fooditems[j].itemid;
// myitem.Group = radListView1.Groups[1];
radListView1.Items.Add(myitem);
myitem.Group = radListView1.Groups.Where(i => i.Key == fooditems[j].catid).FirstOrDefault();
//radListView1.Items[j].Group = radListView1.Groups[1];
}
radListView1.Refresh();
I am trying to add the Item under its category using the where condition to find the correct group by its Key.
If I do this outside for Loop it was working for adding several Items.but from database inside the for loop non.
The Problem was just by casting the i.Key.ToString() inside the Where Clause ..
the Final Code :
ZalaqEntities1 zlq=new ZalaqEntities1();
List<cat> cats = zlq.cats.ToList();
radListView1.Items.Clear();
radListView1.Groups.Clear();
radListView1.EnableGrouping = true;
radListView1.ShowGroups = true;
for (int i = 0; i < cats.Count(); i++)
{
ListViewDataItemGroup grp = new ListViewDataItemGroup();
grp.Value = cats[i].catname;
grp.Key = cats[i].catid.ToString();
radListView1.Groups.Add(grp);
radListView1.Groups[i].Key = cats[i].catid;
}
radListView1.Refresh();
List<fooditem> mfooditems = zlq.fooditems1.ToList();
for (int j = 0; j < mfooditems.Count(); j++)
{
ListViewDataItem myitem = new ListViewDataItem();
myitem.Value = mfooditems[j].itemname;
myitem.Key = mfooditems[j].itemid;
radListView1.Items.Add(myitem);
radListView1.Refresh();
radListView1.Items[j].Group = radListView1.Groups.Where(i => i.Key.ToString() == mfooditems[j].catid.ToString()).FirstOrDefault();
}
radListView1.Refresh();
Related
If I want to add records to datagridview, it is okay, but I want to add records to the database which rows in datagridview.
There is a method - how am I adding Datagridview rows.
public void SepeteEkle()
{
decimal? tutar;
decimal? toplamtutar = 0;
int miktarsum = 0;
DataRow urun = dt.NewRow();
tutar = Convert.ToDecimal(lblFiyat.Text) * Convert.ToInt32(txtMiktar.Text);
bool itemfound = false;
for (int i = 0; i < dgvSepet.Rows.Count; i++)
{
if (Convert.ToString(dgvSepet.Rows[i].Cells[0].Value) == lblStokID.Text)
{
miktarsum += Convert.ToInt32(dgvSepet.Rows[i].Cells[4].Value) + Convert.ToInt32(txtMiktar.Text);
toplamtutar += Convert.ToDecimal(dgvSepet.Rows[i].Cells[5].Value) + tutar;
dgvSepet.Rows[i].Cells[4].Value = miktarsum;
dgvSepet.Rows[i].Cells[5].Value = toplamtutar;
itemfound = true;
}
}
if (itemfound == false)
{
urun["Id"] = lblStokID.Text;
urun["StokKodu"] = txtStokKodu.Text;
urun["Ürün"] = txtStokAdi.Text;
urun["Fiyat"] = lblFiyat.Text;
urun["Miktar"] = txtMiktar.Text;
urun["Toplam"] = tutar;
dt.Rows.Add(urun);
dgvSepet.DataSource = dt;
}
}
I want to add database this all created rows using Entity Framework.
What I tried:
public void DatabaseSepetAktar()
{
xstHar stokHareketModel = new xstHar();
stokHareketModel.stharCariKod = txtCariKodu.Text;
stokHareketModel.stharTarih = DateTime.Now;
stokHareketModel.stharDovFiyat = Convert.ToDecimal(lblTotal.Text);
for (int i = 0; i < dgvSepet.Rows.Count -1 ; i++)
{
stokHareketModel.masterId = Convert.ToInt32(dgvSepet.Rows[i].Cells[0].Value);
stokHareketModel.stokKodu = dgvSepet.Rows[i].Cells[1].Value.ToString();
stokHareketModel.stharGcMik1 = Convert.ToDecimal(dgvSepet.Rows[i].Cells[4].Value);
using (fastCellDb db = new fastCellDb())
{
db.xstHars.Add(stokHareketModel);
db.SaveChanges();
}
}
}
But I get an error
Validation exception
from Entity Framework.
How can I solve this problem ?
Validation exception raises when you try to convert value with wrong type, that is due to wrong indexing. As you add a row to your DataGridView dt.Rows.Add(urun) using text indexing, change the indexing way from number to text everywhere: Cells[0] → Cells["Id"] etc.
And look to the line: for (int i = 0; i < dgvSepet.Rows.Count -1 ; i++), it seems -1 is excess there.
I have a grid view with multiple columns which allow user to fill in the data and they are able to add a new row after finishing filling the data. Among the columns, there is a column with CheckBoxList which I allow user to multiple select the option on the CheckBoxList but every time add a new row, only the first option select by the user is remain while other selection is gone. How am I able to let the option selected by the user remain while I add a new row?
private void SetPreviousDataLecturer()
{
int rowIndex = 0;
if (ViewState["LecturerGridView"] != null)
{
DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"];
if (dataTableCurrent.Rows.Count > 0)
{
for (int i = 0; i < dataTableCurrent.Rows.Count; i++)
{
TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName");
TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID");
TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress");
TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber");
TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress");
CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse");
TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword");
LecturerGridView.Rows[i].Cells[0].Text = Convert.ToString(i + 1);
textBoxLName.Text = dataTableCurrent.Rows[i]["LecturerName"].ToString();
textBoxLID.Text = dataTableCurrent.Rows[i]["LecturerID"].ToString();
textBoxLAdd.Text = dataTableCurrent.Rows[i]["LecturerAddress"].ToString();
textBoxLPNumber.Text = dataTableCurrent.Rows[i]["LecturerPNumber"].ToString();
textBoxLEAdd.Text = dataTableCurrent.Rows[i]["LecturerEAddress"].ToString();
checkBoxListLCourse.SelectedValue = dataTableCurrent.Rows[i]["LecturerCourse"].ToString();
textBoxLPassword.Text = dataTableCurrent.Rows[i]["LecturerPassword"].ToString();
rowIndex++;
}
}
}
}
private void AddNewRowToLecturerGV()
{
int rowIndex = 0;
if (ViewState["LecturerGridView"] != null)
{
DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"];
DataRow dataRowCurrent = null;
if (dataTableCurrent.Rows.Count > 0)
{
for (int i = 1; i <= dataTableCurrent.Rows.Count; i++)
{
TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName");
TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID");
TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress");
TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber");
TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress");
CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse");
TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword");
dataRowCurrent = dataTableCurrent.NewRow();
dataRowCurrent["RowNumber"] = i + 1;
dataTableCurrent.Rows[i - 1]["LecturerName"] = textBoxLName.Text;
dataTableCurrent.Rows[i - 1]["LecturerID"] = textBoxLID.Text;
dataTableCurrent.Rows[i - 1]["LecturerAddress"] = textBoxLAdd.Text;
dataTableCurrent.Rows[i - 1]["LecturerPNumber"] = textBoxLPNumber.Text;
dataTableCurrent.Rows[i - 1]["LecturerEAddress"] = textBoxLEAdd.Text;
dataTableCurrent.Rows[i - 1]["LecturerCourse"] = checkBoxListLCourse.SelectedValue.ToString();
dataTableCurrent.Rows[i - 1]["LecturerPassword"] = textBoxLPassword.Text;
rowIndex++;
}
dataTableCurrent.Rows.Add(dataRowCurrent);
ViewState["LecturerGridView"] = dataTableCurrent;
LecturerGridView.DataSource = dataTableCurrent;
LecturerGridView.DataBind();
}
}
else
{
Response.Write("ViewState is null.");
}
SetPreviousDataLecturer();
}
You need to maintain state for selected checkbox. On the button click 'Add new row' first get the state of each rows in a DataTable and add a blank row then populate that DataTable.
You need to maintain checkbox's selected item's state also. You can get selected values in a CSV as :
string selectedItems = String.Join(",",
checkBoxListLCourse.Items.OfType<ListItem>().Where(r => r.Selected)
.Select(r => r.Value));
and you can restore as :
string[] items = selectedItems.Split(',');
for (int i = 0; i < checkBoxListLCourse.Items.Count; i++)
{
if (items.Contains(checkBoxListLCourse.Items[i].Value))
{
checkBoxListLCourse.Items[i].Selected = true;
}
}
My answer. This answer has some problem like the checkbox list will automatically scroll to the most top when we tick on anything in the checkbox list.
private void SetPreviousDataLecturer()
{
int rowIndex = 0;
if (ViewState["LecturerGridView"] != null)
{
DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"];
if (dataTableCurrent.Rows.Count > 0)
{
for (int i = 0; i < dataTableCurrent.Rows.Count; i++)
{
TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName");
TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID");
TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress");
TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber");
TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress");
CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse");
TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword");
LecturerGridView.Rows[i].Cells[0].Text = Convert.ToString(i + 1);
textBoxLName.Text = dataTableCurrent.Rows[i]["LecturerName"].ToString();
textBoxLID.Text = dataTableCurrent.Rows[i]["LecturerID"].ToString();
textBoxLAdd.Text = dataTableCurrent.Rows[i]["LecturerAddress"].ToString();
textBoxLPNumber.Text = dataTableCurrent.Rows[i]["LecturerPNumber"].ToString();
textBoxLEAdd.Text = dataTableCurrent.Rows[i]["LecturerEAddress"].ToString();
checkBoxListLCourse.Text = dataTableCurrent.Rows[i]["LecturerCourse"].ToString();
string lecturerCourse = dataTableCurrent.Rows[i]["LecturerCourse"].ToString();
if (!string.IsNullOrEmpty(lecturerCourse))
{
for (int j = 0; j < lecturerCourse.Split(',').Length; j++)
{
checkBoxListLCourse.Items.FindByValue(lecturerCourse.Split(',')[j].ToString()).Selected = true;
}
}
textBoxLPassword.Text = dataTableCurrent.Rows[i]["LecturerPassword"].ToString();
rowIndex++;
}
}
}
}
private void AddNewRowToLecturerGV()
{
int rowIndex = 0;
if (ViewState["LecturerGridView"] != null)
{
DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"];
DataRow dataRowCurrent = null;
if (dataTableCurrent.Rows.Count > 0)
{
for (int i = 1; i <= dataTableCurrent.Rows.Count; i++)
{
TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName");
TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID");
TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress");
TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber");
TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress");
CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse");
TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword");
dataRowCurrent = dataTableCurrent.NewRow();
dataRowCurrent["RowNumber"] = i + 1;
dataTableCurrent.Rows[i - 1]["LecturerName"] = textBoxLName.Text;
dataTableCurrent.Rows[i - 1]["LecturerID"] = textBoxLID.Text;
dataTableCurrent.Rows[i - 1]["LecturerAddress"] = textBoxLAdd.Text;
dataTableCurrent.Rows[i - 1]["LecturerPNumber"] = textBoxLPNumber.Text;
dataTableCurrent.Rows[i - 1]["LecturerEAddress"] = textBoxLEAdd.Text;
string lecturerCourse = string.Empty;
foreach (ListItem item in checkBoxListLCourse.Items)
{
if (item.Selected)
{
if (!string.IsNullOrEmpty(lecturerCourse))
{
lecturerCourse += ",";
}
lecturerCourse += item.Value;
}
}
dataTableCurrent.Rows[i - 1]["LecturerCourse"] = lecturerCourse;
dataTableCurrent.Rows[i - 1]["LecturerPassword"] = textBoxLPassword.Text;
rowIndex++;
}
dataTableCurrent.Rows.Add(dataRowCurrent);
ViewState["LecturerGridView"] = dataTableCurrent;
LecturerGridView.DataSource = dataTableCurrent;
LecturerGridView.DataBind();
}
}
else
{
Response.Write("ViewState is null.");
}
SetPreviousDataLecturer();
}
I'm trying to create tracks of Parent that have more than a child and put theme in dynamic ListBox
i have this ParentActivity table"
tblParentActivity
and I want to make tracks depend on ParentActivity table to be in ListBox like this:
Tracks in ListBox
the code so far:
private void TrackingActivity(long ParentActivityID)
{
DataTable dtActiveChild = objA.SelectActivityChild(ParentActivityID);
ListBox lstBox = new ListBox();
lstBox.ID = "lstTrack" + ParentActivityID.ToString();
lstBox.Width = 200;
pnlTrack.Controls.Add(lstBox);
for (int i = 0; i < dtActiveChild.Rows.Count; i++)
{
long ActivityChildID = Convert.ToInt64(dtActiveChild.Rows[i]["ActivityID"].ToString());
string ActivityChildName = dtActiveChild.Rows[i]["ActivityName"].ToString();
lstBox.Items.Add(new ListItem (ActivityChildName.ToString(),ActivityChildID.ToString()));
DataTable dtBrotherActivity = objA.selectBrotherActivity(ActivityChildID);
if (dtBrotherActivity.Rows.Count > 0)
{
TrackingActivity(ActivityChildID);
}
}
}
for example ParentActivityID=1;
selectBrotherActivity is query to get another child of it parent
it gave me distribution like this:
|1|2 3|4 5|7|9|10|7|9|10|6|8|9|10|
which || means ListBox
Ok thanks to everyone I found it:
protected void btnCreateTrack_Click(object sender, EventArgs e)
{
ListBox lstBoxParent = new ListBox();
lstBoxParent.ID = "lstTrack1";
lstBoxParent.Width = 200;
lstBoxParent.Height = 200;
pnlTrack.Controls.Add(lstBoxParent);
TrackingActivity(1, lstBoxParent );
}
private void TrackingActivity(long ParentActivityID, ListBox lstBoxParent)
{
chk:
DataTable dtActiveChild = objWFAI.SelectActivityChild(ParentActivityID);
string ActivityName = objWFA.CurrentActivityName(ParentActivityID);
lstBoxParent.Items.Add(new ListItem(ActivityName, ParentActivityID.ToString()));
for (int i = dtActiveChild .Rows.Count - 1; i >= 0; i--)
{
long ActivityChildID = Convert.ToInt64(dtActiveChild .Rows[i][" ActivityID"].ToString());
if (i != 0)
{
ListBox lstBoxChild = new ListBox();
lstBoxChild.ID = "lstTrack" + ActivityChildID.ToString();
lstBoxChild.Width = 200;
lstBoxChild.Height = 200;
pnlTrack.Controls.Add(lstBoxChild);
for (int p = 0; p < lstBoxParent.Items.Count; p++)
{
lstBoxChild.Items.Add(new ListItem(lstBoxParent.Items[p].Text, lstBoxParent.Items[p].Value));
}
TrackingActivity(ActivityChildID, lstBoxChild);
}
else
{
ParentActivityID = ActivityChildID ;
goto chk;
}
}
I want to iterate through each object in a collection and then update a property on each object with another array collection
My use case is I have some entities which I initially read from my collection into an array, and perform some complex calculation and then update back my original collection.
public void WhatIfCalculation(string Product, string SiteID, System.Linq.IQueryable<DAL.OMS_StockStatus> prodStatus, ref System.Linq.IQueryable<PivotViewModel> activityInfo)
{
var sff = activityInfo.Where(a => a.Activity == "System Forecast" && a.SiteID == SiteID).ToList();
aSFF = new double?[sff.Count()];
for (int i = 0; i < sff.Count(); i++)
{
aSFF[i] = sff.ElementAt(i).Value + 1;
}
var prf = activityInfo.Where(a => a.Activity == "Planned Receipts" && a.SiteID == SiteID).ToList();
aPRF = new double?[prf.Count()];
for (int i = 0; i < prf.Count(); i++)
{
aPRF[i] = prf.ElementAt(i).Value + 2;
}
// Will perform some calculation here. And then update back my collection.
for (int i = 0; i < aSFF.Length; i++)
{
activityInfo.Where(a => a.Activity == "System Forecast" && a.SiteID == SiteID).ToList().ElementAt(i).Value = aSFF[i];
}
for (int i = 0; i < aPRF.Length; i++)
{
activityInfo.Where(a => a.Activity == "Planned Receipts" && a.SiteID == SiteID).ToList().ElementAt(i).Value = aPRF[i];
}
}
But above update is not updating my collection. When I browse back through my activityInfo - its still showing original value.
Try the following:
public void WhatIfCalculation(string Product, string SiteID, List<DAL.OMS_StockStatus> prodStatus, List<PivotViewModel> activityInfo)
{
var sff = activityInfo.Where(a => a.Activity == "System Forecast"); // Do this in the calling function >> .Where(a => a.SiteID == SiteID).ToList();
aSFF = new double?[sff.Count()];
for (var i = 0; i < sff.Count(); i++)
{
aSFF[i] = sff.ElementAt(i).Value + 1;
}
var prf = activityInfo.Where(a => a.Activity == "Planned Receipts");
aPRF = new double?[prf.Count()];
for (var i = 0; i < prf.Count(); i++)
{
aPRF[i] = prf.ElementAt(i).Value + 2;
}
// Will perform some calculation here. And then update back my collection.
for (var i = 0; i < aSFF.Length; i++)
{
sff.ElementAt(i).Value = aSFF[i];
}
for (var i = 0; i < aPRF.Length; i++)
{
prf.ElementAt(i).Value = aPRF[i];
}
}
As you can see I am sending a list instead of an IQueryable to the method. Reason is that the IQueryable is in fact an query statement and not the record itself.
Basically what you are doing is sending a query to the method which you than use to select the items and change them. The actual items are not changed.
Using the below example you are sending a list of the actual items. The items can than be changed. I also removed some double select statements from your method to enhance the speed.
this should also be useful: Differences between IQueryable, List, IEnumerator?
I'm trying to select values in a CheckBoxList control based on a data source. I have five items in the CheckBoxList and three items in the data source, but in the loop I only get one item selected.
if (ddlUserId.SelectedIndex != 0)
{
RoleDetails rd;
rd = CatalogAccess.GetSingleUserRole(ddlUserId.SelectedValue.ToString());
for (int i = 0; i < cblRoles.Items.Count; i++)
{
cblRoles.Items.FindByValue(rd.RoleID.ToString()).Selected = true;
}
}
I tried this, but it still selects only one item:
RoleDetails rd;
for (int i = 0; i < cblRoles.Items.Count; i++)
{
rd = CatalogAccess.GetSingleUserRole(ddlUserId.SelectedValue.ToString());
if (cblRoles.Items[i].Value == rd.RoleID.ToString())
cblRoles.Items[i].Selected = true;
}
CheckboxList bind code
cblRoles.DataSource = CatalogAccess.GetRoles();
cblRoles.DataTextField = "RoleDetails";
cblRoles.DataValueField = "RoleId";
cblRoles.DataBind();
When you use for loop you need to use index value (Here it is "i"), like
for (int i = 0; i < cblRoles.Items.Count; i++)
{
if(cblRoles.Items[i].Value == rd.RoleID.ToString())
cblRoles.Items[i].Selected = true;
}
Or you can use foreach as below:
Here i have created looping through items of checkbox list using foreach & item will be made selected id its value will match RoleId .
foreach (ListItem li in cblRoles.Items)
{
if (rd.RoleID.ToString() == li.Value)
{
li.Selected = true;
}
else
{
li.Selected = false;
}
}