How to create multi series ASP.net chart dynamically.
private void BindChart(DataTable dt)
{
dt.DefaultView.Sort = "Category Asc";
DataTable dtSorted = dt.DefaultView.ToTable();
string sCategoryName = string.Empty;
string sOldCategoryName = string.Empty;
for (int i = 0; i < dtSorted.Rows.Count; i++)
{
sCategoryName = dtSorted.Rows[i]["Category"].ToString();
if (sCategoryName != sOldCategoryName)
{
// Your logic here to bind the category in chart
sOldCategoryName = sCategoryName;
}
// Bind other details (description etc) from the table.
}
}
Related
Users are uploading an Excel file to my site which I'm then going to write to the database. I'd like to add two additional columns (Email and TimeStamp). I'm not getting any specific error. Any suggestions on how to remedy? Code below:
public static class ExcelPackageExtensions
{
public static DataTable ToDataTable(this ExcelPackage package)
{
ExcelWorksheet worksheet = package.Workbook.Worksheets.First();
DataTable dt = new DataTable();
dt.Columns.Add("Email");
dt.Columns.Add("TimeStamp");
foreach (var firstRowCell in worksheet.Cells[1,1,1,worksheet.Dimension.End.Column])
{
dt.Columns.Add(firstRowCell.Text);
}
for (var rownumber=2; rownumber <= worksheet.Dimension.End.Row; rownumber++)
{
var row = worksheet.Cells[rownumber, 1, rownumber, worksheet.Dimension.End.Column];
var newrow = dt.NewRow();
newrow["Email"] = System.Web.HttpContext.Current.User.Identity.GetUserId();
newrow["TimeStamp"] = DateTime.Now;
foreach (var cell in row)
{
newrow[cell.Start.Column - 1] = cell.Text;
}
dt.Rows.Add(newrow);
}
return dt;
}
}
hi i'm Cannot get value dynamically created textbox and save into database. plz help
his is code which I have created in this code text box are created but when I will input the value in the text and retrieve the value from dynamically created text box it give error
protected void btnAtt_Click(object sender, EventArgs e)
{
int DPLID = int.Parse(DPLCategory.Text);
var query = (from p in database.tbl_Attributes
where p.ProductTypeId_FK == DPLID
select new
{
p.Attribute_Id,
p.AttributeName,
p.ProductTypeId_FK,
}).ToArray();
for (int i = 0; i < query.Count(); i++)
{
Label lblatt = new Label();
lblatt.ID = query[i].AttributeName;
lblatt.Text = query[i].AttributeName + " : ";
lblatt.CssClass = "control-label";
TextBox txtatt = new TextBox();
txtatt.ID = "txtatt"+i;
txtatt.Attributes.Add("runat", "server");
txtatt.Text = String.Empty;
txtatt.CssClass = "form-control input-sm";
HtmlTextWriterTag.Br.ToString();
Place1.Controls.Add(lblatt);
HtmlTextWriterTag.Br.ToString();
Place1.Controls.Add(txtatt);
HtmlTextWriterTag.Br.ToString();
}
}
protected void lbtnSave_Click(object sender, EventArgs e)
{
int DPLID = int.Parse(DPLCategory.Text);
var query = (from p in database.tbl_Attributes
where p.ProductTypeId_FK == DPLID
select new
{
p.Attribute_Id,
p.AttributeName,
p.ProductTypeId_FK,
}).ToArray();
int LastId = database.tbl_Products.Max(p => p.ProductId);
for (int i = 0; i < query.Count(); i++)
{
database.tbl_ProductValue.Add(new Models.tbl_ProductValue()
{
ProductId_FK = LastId,
AttributeID_FK = query[i].Attribute_Id,
ProductValue = ??,
});
database.SaveChanges();
}
}
plz help me for how to get textbox?
I haven't worked with WebForms in a while but you can access the controls by their IDs like this:
ProductValue = ((TextBox)FindControl("txtatt" + i)).Text;
How to load the CSV file dynamically inside Grid View in C# Asp.net without hard coded values?
if (File.Exists(myFileUpload.PostedFile.FileName))
{
string[] data = File.ReadAllLines(myFileUpload.PostedFile.FileName);
DataTable dt = new DataTable();
string[] col = data[0].Split(',');
foreach (string s in col)
{
dt.Columns.Add(s, typeof(string));
}
for (int i = 0; i < data.Length; i++)
{
string[] row = data[i].Split(',');
dt.Rows.Add(row);
}
myGridView.DataSource = dt;
myGridView.DataBind();
}
I have a DataGrid of seats available, each with a checkbox to be able to reserve the seat. In the button click event, if the CheckBox is clicked, I am adding the contents of the row to an ArrayList, then adding the ArrayList to a session before redirecting to the confirmation page:
protected void Reserve_Click(object sender, EventArgs e)
{
{
ArrayList seatingArreaList = new ArrayList();
for (int i = 0; i < GridView1.Rows.Count; i++)
{
Guid SeatId = (Guid)GridView1.DataKeys[i][0];
CheckBox cbReserve = (CheckBox)GridView1.Rows[i].FindControl("cbReserve");
Label lblSection = (Label)GridView1.Rows[i].FindControl("lblSection");
Label lblRow = (Label)GridView1.Rows[i].FindControl("lblRow");
Label lblPrice = (Label)GridView1.Rows[i].FindControl("lblPrice");
if (cbReserve.Checked)
{
string tempRowInfo = lblSection.Text + "|" + lblRow.Text + "|" + lblPrice.Text;
seatingArreaList.Add(tempRowInfo);
}
}
// Add the selected seats to a session
Session["Seating"] = seatingArreaList;
}
Response.Redirect("Confirm.aspx?concertId=" + Request.QueryString["concertId"]);
}
On the confirmation page, Id like to split this array up and bind it to another gridview in their individual columns.
On the confirmation page, a session exists that has three columns separated with a pipe, I am struggling to split this up and bind it to a confirmation grid.
Please help!
This would probably be easier to just create a DataTable, then add it to the session variable. Once redirected to the confirmation page just bind GridView to the DataTable pulled from the session variable.
protected void Reserve_Click(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.Add("Section");
dt.Columns.Add("Row");
dt.Columns.Add("Price");
{
ArrayList seatingArreaList = new ArrayList();
for (int i = 0; i < GridView1.Rows.Count; i++)
{
Guid SeatId = (Guid)GridView1.DataKeys[i][0];
CheckBox cbReserve = (CheckBox)GridView1.Rows[i].FindControl("cbReserve");
Label lblSection = (Label)GridView1.Rows[i].FindControl("lblSection");
Label lblRow = (Label)GridView1.Rows[i].FindControl("lblRow");
Label lblPrice = (Label)GridView1.Rows[i].FindControl("lblPrice");
if (cbReserve.Checked)
{
DataRow dr = dt.NewRow();
dr["Section"] = lblSection.Text;
dr["Row"] = lblRow.Text;
dr["Price"] = lblPrice.Text;
dt.Rows.Add(dr);
}
}
// Add the selected seats to a session
Session["Seating"] = dt;
}
Response.Redirect("Confirm.aspx?concertId=" + Request.QueryString["concertId"]);
}
var q = from dto in seatingArreaList
let z = dto.Split("|".ToCharArray())
select z;
and then just bing q to the grid.
I am creating an admin Page, in which checkboxlist(User list from DB)is to be created dynamically and its the checked users value is retrieved.
There are different types of users, so it is distinguised groupwise.
Now first a panel is defined, the checkboxlist is created dynamically and placed inside the panel, then the panel is placed inside a Placeholder.
What Iam doing here is placing the checkboxlist inside the panel, then the panel inside the placeholder. So the values of the Checkboxlist is not retrieved, due to the panel it doesnt get the checkboxlist and it doesn't loop through the Checkboxlist.
What I have done is.
private void AddControl(string pUserGrp, int pUserGrp_Id, int pName)
{
CheckBoxList chkList = new CheckBoxList();
CheckBox chk = new CheckBox();
User us = new User();
us.OrderBy = "Order By User_Name";
us.WhereClause = "Where UserRole_Id = " + pUserGrp_Id ;
chkList.ID = "ChkUser" + pName ;
chkList.AutoPostBack = true;
chkList.Attributes.Add("onClick", "getVal(ChkUser" + pName + ");");
chkList.RepeatColumns = 6;
chkList.DataSource = us.GetUserDS();
chkList.DataTextField = "User_Name";
chkList.DataValueField = "User_Id";
chkList.DataBind();
chkList.Attributes.Add("onClick", "getVal(this);");
Panel pUser = new Panel();
if (pUserGrp != "")
{
pUser.GroupingText = pUserGrp ;
chk.Text = pUserGrp;
}
else
{
pUser.GroupingText = "Non Assigned Group";
chk.Text = "Non Assigned group";
}
pUser.Controls.Add(chk);
pUser.Controls.Add(chkList);
Place.Controls.Add(pUser);
}
private void setChecked(int pPageGroupId)
{
ArrayList arr = new ArrayList();
PageMaster obj = new PageMaster();
obj.WhereClause = " Where PageGroup_Id = " + pPageGroupId;
arr = obj.GetPageGroupUserRights(null);
CheckBoxList chkList = (CheckBoxList)Place.FindControl("ChkUser");
if (chkList != null)
{
for (int i = 0; i < chkList.Items.Count; i++)
{
if (arr.Count > 0)
{
int ii = 0;
while (ii < arr.Count)
{
PageMaster oCand = (PageMaster)arr[ii];
if (oCand.User_Name == chkList.Items[i].Text)
{
if (!chkList.Items[i].Selected)
{
chkList.Items[i].Selected = true;
}
}
ii++;
oCand = null;
}
}
}
}
}
public string GetListCheckBoxText()
{
StringBuilder sbtext = new StringBuilder();
foreach (Control c in Place.Controls)
{
if (c.GetType().Name == "CheckBoxList")
{
CheckBoxList cbx1 = (CheckBoxList)c;
foreach (ListItem li in cbx1.Items)
{
if (li.Selected == true)
{
sbtext.Append(",");
sbtext.Append(li.Value);
}
else
{
sbtext.Append(li.Value);
}
}
}
}
return sbtext.ToString(); }
It doesnt get through the Checkboxlist control in the setChecked(), also doesnt loop through the GetListCheckBoxTest().
Anyone can plz help me.
Regards
The problem is that you are trying to find a control (in setChecked) without setting the Name property. You are using this:
CheckBoxList chkList = (CheckBoxList)Place.FindControl("ChkUser");
But where is this in AddControl?
chkList.Name = "ChkUser";
And in GetListCheckBoxText instead of...
if (c.GetType().Name == "CheckBoxList")
...use this:
if (c.GetType()== typeof(CheckBoxList))