Web Forms :: How To Generate A Row Of Controls At Run Time
Feb 2, 2010
My asp table contains two rows and 4-4 colums each . i have some default control on it, Now i have a link button below it when some some click on that i want to generate a row with 4 more control on it.
and to do so i wrote some code, but my problem is it only generates a single row, if i click on button next time it will not work.
how to generate textboxes at runtime. Actually I have a variableyear,
through some calculation it get an integer value in this varable somthing like 2,3,4,5........ So whatever no it have; i want to generate textbox exact equal to theno.
And one more thing, i also want to save these textboxes' text in database table. how to do that. [ i am confused cos i dont know the no of textboxes will generate so how can i writeinsert query for that ]
cancel plane ticket before 4 hours of departure time if dep time is 08:00:00 AM then Passengers can cancel ticket till 04:00:00 AM? I have two textboxes textbox1 and textbox2 in asp.net(vb) webform I want If in textbox1 the time would be appear as 08:20:20 AM Then in textbox2 the time would be automatically generated 4 hours before as compared to textbox1 i.e ( the time in textbox2 the time would be appear as 04:20:21 AM ) Means simply logic i want ... if the time in Textbox1 is 08:00:05 PM then autogenerated time in textbox2 will be 04:00:06 PM Means whatever the time in Textbox1 the textbox 2 will autogenerate time in 4 hours time slot.
how to suppress the "AM" in the gridview (template Bind("RideTimeMin", "{0:t}")? Don't tell me to use military time because the function is not "time on a clock"; it's how much time is allowed for a task (in this case the min/max hours & minutes that horses have to complete a 20 mile trail; e.g. 05:00, 05:27, etc). I'm currently accomplishing this in the "ondatabound" function by "..RTmin.Replace("AM","")". I have looked and looked at all the websites that talk about datetime formatting but have yet to find a way to do it upfront in the gridview bind statement.
I have a date/time stored in a smalldatetime field (ms sql 2005) that i want to compare with the current time and receive a difference. If the difference is less than 30 minutes, do this....if more do that....
My problem is that I have a grid view that show the data from database.In my gridview i add a column name date .like eg You knw that when we send a scrap to anyone then show time how much time to send a scrap.
This is the sqlDateTime overflow problem again. Background. As I'm sure you know dates must be between 1/1/1753 and 12/31/2999. If you have an empty date field, it throws and exception. So I created a function (below) that solve the problem when attempting to update or insert a record with a date field. Works great.
Public Shared Function MakeDateField(ByVal pasDate As String) As Nullable(Of DateTime)
If IsDate(pasDate) Then Try If pasDate <= System.DateTime.MinValue Then Return Nothing Else Return CType(pasDate, DateTime) End If Catch ex As NullReferenceException Return Nothing End Try Else Return Nothing End If End Function
So I thought about using a time field. I have the field, have the validator in place and then attempted to test the page. It resulted in my least favorite error message "sqlDateTime overflow".
I can think of several workarounds like adding a date or a fixed date to the time field, or converting it to a string. Each of these is problematic.
IS THERE A BETTER WAY TO UPDATE/INSERT TIME FIELDS.
I have a gridview on my page. I have a checkbox in each row of this gridview. For each checkbox in the gridview, I'd like to update my table accordingly, but I don't want them to have to hit a submit button every time they check the checkbox. I want them to check all the boxes they need to and at the end, they should hit one submit button.
I have 2 fields being displayed in a Gridview, StartTime, EndTime. I want to create a 'Time" column which shows the elapsed time in HH:MM format. (StartTime - EndTime) This was all generated with VS2008, table is pulled from an SQL Query.
Windows 7 Ultimate 64bit Visual Studio 2008 Team System Using C# SQL Server 2005 Express Management Studio (Service Pack 3) By using Visual Studio 2008,I opened Server Explorer and tried to modify Database connection,i wanted to use SQL Authentication,I entered User name and Passwored after pressing OK button,i got the following... Error message Failed to generate a user instance of SQL Server.Only an integerated connection can generate a user instance.The connection will be closed.
Based on this I want to create controls on the page dynamically. I think it is a bit like the ASP.NET Dynamic data project, but I have no Entity Framework or Linq to SQL Context available. Of cause: I can write my own XML parser and page generator but I don't want to reinvent the wheel again. Do you maybe created a similar project or know some good source that uses the same approach?
A DropDownList is put in a GridView's TemplateField. Its corresponding table cell at runtime shows three controls (verified by checking gv.Rows[iSelected].Cells[iColumn].Controls). The three controls are: 1. Literal; 2. DropDownList; 3. Literal. It is not the case for other controls, at least not for TextBox which I usually access by something like gv.Rows[iSelected].Cells[iColumn].Controls[0]. This is not a big problem because I can always access it by its static ClientID, but I am curious why so and whether other controls have the behavior.
On my form I want to display n number of rows of asp textboxes where n is determined by the number of records in the corresponding database table. I can dynamically generate html controls and get the values via request.form but I can't figure out how to do the same with asp controls.
The output from the following code, displays the text boxes from the "input type=text" statement, but displays nothing for the "asp:textbox" statement. I would prefer to use asp (or third party controls) so would greatly appreciate help on how to render non-html controls dynamically from my code behind.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load Dim ncount As Integer = 0 Dim strOutput As String = "" [code]....
I am wanting to create a message board for team and would like the header to be generated from thier team color stored in sql. First I am currently just using varchar to store it. Would that be right or would there be a better format? Second how can I get my form to generate the header color off of this stored value?
select distinct tbl.emp_code, b.EmplName, convert(varchar, tbl.punched_date,101) as Punched_date, (select convert(varchar(8),itbl.PUNCHED_TIME, 114)+', ' from Trn_Capture_Data_New itbl where itbl.EMP_CODE=tbl.emp_code and itbl.PUNCHED_DATE=tbl.punched_date and itbl.EMP_CODE='4' and tbl.punched_date >= '03/27/2013' and tbl.punched_date <= '03/28/2013' for xml path('')) Punched_Time
Now i need to Bind it to gridview, the gridview columns should be
Date,IN,OUT,IN,OUT
In punched time the first one should be IN and second OUT. A employee would have punched several time a day. Based on that I should take maximum punches and bring that of columns as IN and OUT in gridvew dynamically. How to achieve this?
I coded in code behind to dynamically generate a gridview as the columns of the gridview changes based on user selection. In the gridview I have dynamically generated controls like textbox, dropdown list etc.I have a few filtering options about, for example: listbox which will postback on change and causes the gridview content to change as well.My problem is: since the controls are randomly generated and every postback will read dataset from database and reload, the naming of the controls are dynamically generated too.
I would like that ID of subcontrol generated from the GridViewRow (NamingContainer) be named including database unique ID.
Exemple :
Suppose in the first colum of my GridView I have a Label displaying the name of an item fetch from a database table.
SQL Database table definition
SQLTable
- UniqueID - Name
In this table I have the following records
- 1956 Hello - 3013 World - ... ...
Suppose I have a GridView having a label (id="lbName") in the first column template.
Now I'm binding GridView using this query : SELECT UniqueID, Name FROM SQLTable
After binding, the HTML result will be :
myGridView_ctl101_lbName
But I would like that NamingContainer names sub items like this :
myGridView_ctl1956_lbName
So I have tried in the RowDataBound event of the GridView : e.Row.NamingContainer.ID = (DataRowView)e.Row.DataItem)["UniqueID"].ToString()At first look it output exactly what I need but after that I can't get working Edit mode, it seem to break DataKeys or something else.
I am creating a attendance database table in sql server2005.. i just want to generate the gridview as follows in form.aspx.. i am using vb.net generate the report in gridview..
Attendance table employee name(varchar)- Its contain all the employees name date(datetime)-Its contain dates status(varchar)-Its contain the status of employee whether they are Present or Absent
I just need all the employee name (data) in one rows and dates in columns.. also i need the status of the employees inside this.. whether they are absent or present.