i like to have 2 columns in my drop down list with specific distance between 2 columns, so i have added below code but columns are not align with my code.
var query = from p in _DataContext.tblDocuments
orderby p.DocumentNo
select new
{
Doctitle = p.DocumentNo+' '+' '+"|"+' '+p.TITLE,
DocId = p.DocId
};
ddlProjectDocument.DataSource = query;
ddlProjectDocument.DataValueField = "DocId";
ddlProjectDocument.DataTextField = "Doctitle";
ddlProjectDocument.DataBind();
please help how i can have 2 columns with normal view and good align.
The alignment will depend on the length of the value in the field of your table. One way to do it would be to get the size of the largest entry in your table and make sure that all entries are that wide. Here is something you can try.
<asp:DropDownList ID="ddlStack" runat="server" OnLoad="ddlStack_Load" />
and in the source code for ddl load event:
protected void ddlStack_Load(object sender, EventArgs e)
{
var all = from o in _DataContext.tblDocuments
orderby o.DocumentNo
select o;
int maxs = 0;
foreach (tblDocuments v in all)
{
if (v.DocumentNo.Length > maxs)
maxs = v.DocumentNo.Length;
}
foreach (tblDocuments vv in all)
{
string doctitle = vv.DocumentNo;
for (int i = vv.DocumentNo.Length; i < maxs + 2; i++)
{
doctitle += '_';
}
doctitle += " | ";
doctitle += vv.DocID;
ddlStack.Items.Add(new ListItem(doctitle, vv.vendorID.ToString()));
}
}
You can try either from the below two methods:
1). select new
{
Doctitle = p.DocumentNo+" "+"|"+" "+p.TITLE,
DocId = p.DocId
};
2).
select new
{
Doctitle =Concat(p.DocumentNo,p.TITLE),
DocId = p.DocId
};
Related
I have to bind an <asp:calendar> with data fetched from a database using a linq query.
Here is the linq code
public List<AllCalander> SearchCalender(int month, int zip, string type, int cause)
{
var xyz = (from m in DB.Calenders
where(m.DateFrom.Value.Month==month || m.Zip==zip || m.ActivityType==type || m.CauseID==cause)
group m by new { m.DateFrom } into grp
select new
{
caustitle = grp.Select(x => x.Caus.CauseTitle),
datfrm = grp.Key.DateFrom,
total = grp.Count()
})
.ToList()
.Select(m => new AllCalander
{
DateFrom =Convert.ToDateTime(m.datfrm),
CauseTitle = string.Join(",", m.caustitle),
Total = m.total
});
My aspx.cs code is here
List<AllCalander> calnder = calbll.SearchCalender(mnth,ZipString,type,causeString);
foreach (var myItem in calnder)
{
string datetime = myItem.DateFrom.ToString();
Literal myEventNameLiteral = new Literal();
myEventNameLiteral.ID = i + myItem.CauseID.ToString();
// string currentcalanderDate = e.Day.Date.Day.ToString() ;
if (string.Equals(DateTime.Parse(datetime).ToString("MMM dd yyyy"), e.Day.Date.ToString("MMM dd yyyy")))
{
string a = myItem.CauseTitle;
if (a != cause)
cause = a;
coun++;
myEventNameLiteral.Mode = LiteralMode.PassThrough;
myEventNameLiteral.Text = "<br /><span style='font-family:verdana; font-size:10px;'>" + myItem.CauseTitle + "(" + myItem.Total + ")"+ " ";
e.Cell.Controls.Add(myEventNameLiteral);
}
i++;
}
but on output it only shows the last value from database instead of showing all the data.
Can somebody please tell me what's wrong?
Thanks in advance
group m by new { m.DateFrom, m.Caus.CauseTitle } into grp
I have a datatable, then I have all the column names of the datatable as checkbox, I want to display only those column records, for which user selected from the checkbox:
Below is the code, but I am not getting the desired result
var values = "";
string clmnm = "";
for (int i = 0; i < interestedIN.Items.Count; i++)
{
if (interestedIN.Items[i].Selected)
{
values += interestedIN.Items[i].Value + ",";
}
}
values = values.TrimEnd(',');
string[] words = values.Split(',');
DataTable dt = new DataTable();
dt = (DataTable)Session["dataset"];
DataTable dt1 = new DataTable();
foreach (string word in words)
{
dt1.Columns.Add(word, typeof(string));
if (clmnm == string.Empty)
{
clmnm = word.Trim();
}
else
{
clmnm += "," +word.Trim();
}
}
foreach (DataRow dr in dt.Rows)
{
string[] split = clmnm.Split(',');
int j =0;
string str = "";
string str2 = "";
while( j < split.Length)
{
str = split[j].ToString();
if (str2 == string.Empty)
{
str2 = "dr[\""+str.ToString()+"\"]";
}
else
{
str2 += "," + "dr[\""+str.ToString()+"\"]";
}
j+=1;
}
dt1.Rows.Add(str2);
}
then I am trying to export the result as an excel sheet: but getting the below excel sheet:
There is a lot of changes to be done to your code. Lets begin with selected columns from CheckBoxList. Try using List or Arrays to store which columns that user wants. Like
List<string> columns = new List<string>();
Then store the selected columns into the columns list. Then you need to add columns to your new DataTable dt1. As,
DataTable dt1 = new DataTable();
for (int i = 0; i < interestedIN.Items.Count; i++)
{
if (interestedIN.Items[i].Selected) //If user selected this columns checkbox.
{
columns.Add(interestedIN.Items[i].Text.Trim()); //Storing values to List.
dt1.Columns.Add(interestedIN.Items[i].Text.Trim()); //Adding columns to the DataTable.
}
}
Then you can loop through your original DataTable dt and store the values as below.
foreach (DataRow dr in dt.Rows)
{
DataRow dr1 = dt1.NewRow(); // Create new row which should have identical structure for inserting.
foreach(string col in columns)
{
dr1(col) = dr(col);
}
dt1.Rows.Add(dr1); //Add the row with the contents to the table.
}
I have a data table which has a "Total" column. I want to be able to get a specific rows "Total" not all rows.
public void maxValue()
{
string pass = (String)Session["name"];
DataTable table = (DataTable)Session["CocaCola"];
int total = table.AsEnumerable().Sum(r => r.Field<int>("Total"));
int totalAllowed = table.AsEnumerable().Sum(r => r.Field<Int32>("Total Allowed"));
if (total >= totalAllowed)
{
Label1.Text = "Total value exceeded the maximum of " + totalAllowed;
}
else if (total < totalAllowed)
{
Label1.Text = "Total value which is allowed :" + totalAllowed;
}
if (pass.Equals("Low"))
{
Label1.Text = "You are not allowed any assets at this Stage";
//SNS.Checked = false;
//TT.Checked = false;
//Music.Checked = false;
//SNS.Enabled = false;
//TT.Enabled = false;
//Music.Enabled = false;
}
}
As you can see my method works but add the column up which i dont want to do. How would i go about changing it?
You can do it this way
int yourTargetindex = 0; //Change this to get the value of your target element
int total =(from row in table.AsEnumerable()
select row.Field<int>("Total")).ElementAt(yourTargetindex);
//This will return the first value of "total" in the DataTable
You don't have to use linq. DataTable has built-in methods for this kind of operations:
var selectedTotal = table.Compute("sum(Total)", "columnX == 'x'");
This tell the table to calculate the sum of all Total cells in rows where columnX has the specified value.
Of course you can use linq. You would need to add a Where() before you calculate the sum.
I have dynamically created textbox in asp.net. Now i am extracting the values through following code.
string[] sublist = new string[] { };
int[] maxmarkslist = new int[] { };
int i;
for (i = 0; i < Convert.ToInt32(Label15.Text); i++)
{
string sub = "subject" + i;
string marks = "maxmarks" + i;
TextBox subject = (TextBox)PlaceHolder1.FindControl(sub);
TextBox maxmarks = (TextBox)PlaceHolder1.FindControl(marks);
sublist[i] = subject.Text;
maxmarkslist[i] = Convert.ToInt32(maxmarks.Text);
}
But I getting error "Index was outside the bounds of the array" for the below two lines:
sublist[i] = subject.Text;
maxmarkslist[i] = Convert.ToInt32(maxmarks.Text);
When I debugged it, values are coming in subject.Text and maxmarks.Text but not going to array.
Did I define the array in a wrong way?
You define both the arrays as empty arrays. So you will get index out of bound erros if you try to index into those.
Arrays are not dynamically expanding. If you want that, use a collection type and may be later convert to an array.
Try this:
int length = Convert.ToInt32(Label15.Text);
string[] sublist = new string[length-1];
int[] maxmarkslist = new int[length-1];
for (int i = 0; i < length; i++)
{
string sub = "subject" + i;
string marks = "maxmarks" + i;
TextBox subject = (TextBox)PlaceHolder1.FindControl(sub);
TextBox maxmarks = (TextBox)PlaceHolder1.FindControl(marks);
sublist[i] = subject.Text;
maxmarkslist[i] = Convert.ToInt32(maxmarks.Text);
}
Or here is how to do this with a collection (List) type:
int length = Convert.ToInt32(Label15.Text);
List<string> sublist1 = new List<string>();
List<int> maxmarkslist1 = new List<int>();
for (int i = 0; i < Convert.ToInt32(Label15.Text); i++)
{
string sub = "subject" + i;
string marks = "maxmarks" + i;
TextBox subject = (TextBox)PlaceHolder1.FindControl(sub);
TextBox maxmarks = (TextBox)PlaceHolder1.FindControl(marks);
sublist1.Add(subject.Text);
maxmarkslist1.Add(Convert.ToInt32(maxmarks.Text));
}
string[] sublist = sublist1.ToArray();
int[] maxmarkslist = maxmarkslist1.ToArray();
Note with collections you dont have to specify the size upfront. But keep adding items to it as it can expand as needed. But arrays can not do this.
Your string[] sublist = new string[] { }; is a shortcut method where you create and initialize the array. In that you don't have to specify the size, but compiler will count the elements between {} and set the size appropriately. In your case since there are no elements inside {} it will create an empty array.
string[] sublist = new string[100];
int[] maxmarkslist = new int[100];
Put this..replace 100 with the max possible value of your loop...but this is not a good practice...will come back to this thread if i found something better...
hey guys,
i have a gridview which displays 10records per page, now i want to implement shift+click option in my gridview, when user clicks on the first row and press shift key and click on the 5th row, all the rows between 1 and 5(1 and 5 inclusive) should be selected...
can anyone suggest how should i do this in javascript.
I take it back, I found a shift+click multiple select solution for a gridview. All credit goes to mdv over at the asp forums.
var _sPreviousRow = null;
function wsCheckRange(p_oGridView, p_oControl, e) {
var l_sCheckID = p_oControl.id;
var l_aCheckIDParts = l_sCheckID.split(p_oGridView.id);
var l_sCurrentRow = l_aCheckIDParts[1].split('_')[1].substring(3);
var l_oEvent = (window.event) ? event : e;
if (l_oEvent.shiftKey) {
if (_sPreviousRow != null && _sPreviousRow != l_sCurrentRow) {
var l_iFirst = 0, l_iLast = 0;
if (parseInt(_sPreviousRow,10) > parseInt(l_sCurrentRow,10)) {
l_iFirst = parseInt(l_sCurrentRow,10);
l_iLast = parseInt(_sPreviousRow,10);
}
else {
l_iFirst = parseInt(_sPreviousRow,10);
l_iLast = parseInt(l_sCurrentRow,10);
}
for (var i = l_iFirst; i < l_iLast; i++) {
var l_sLastRow = (i <= 9 ? '0' + i : i);
var l_sCtrlNew = l_sCheckID.replace('ctl' + l_sCurrentRow, 'ctl' + l_sLastRow);
var l_oCtrlNew = $get(l_sCtrlNew);
if (l_oCtrlNew) {
l_oCtrlNew.checked = p_oControl.checked;
}
}
}
_sPreviousRow = null;
}
else {
_sPreviousRow = l_sCurrentRow;
}
}