my datatble
name class mark address
a 1 23 c
b 2 23 d
c 3 56 4
how can i loop through cells in this datatable and bind with gridview.
I have a gridview that serves as a confirmation for user input in a previous form from a previous page. The grid is databound to a temporary table where I store the user's initial selections. The user can confirm what they had submitted, (which may be more than one row of information, up to three classes) or go back and change. When they hit the confirm button, I loop through the gridview and enter a row in a permanent database for each row in the gridview. This works great.
However, I don't want the gridview to display all of the columns that are actually in the temp database, because I'm carrying over 'usersubmitted, datesubmitted', etc, from the previous page for each class selected and this is redundant. (I do need to use all of the columns when they submit, however, to make a new row with complete information for each selected class in the permanent database) So, when I set the usersubmitted column visible false, for example, in the gridview, the dataset table adapter insert function fails with a data type mismatch error. I'm assuming becuase the column has to be visible, becuase when I make it visible again it works.
Can you loop through a gridview and call on cells in columns that are not visible?
The first page is like this:
the user fills out his info once in text boxes
name ____
address____
then selects up to three classes in dropdowns:
class one dropdown ...
class two dropdown....
for each dropdown, I insert name, address, class selected into a temp db Second page.
Gridview should display only classes selected, one row for each, and not
name address class selected
name address class selected
then when they submit, I insert
name address class selected
name address class selected
one row for each in permanant database
im trying to retrive all the values in the datatable
but i keep getting only the first value
since i just finished learning C# i have no idea how to solve that
here the code i use let me know what am i missing
[Code]....
I've a asp:Calendar control and to each date, dynamically when the calendar renders i'm adding a checkbox next to it.
The user can check and uncheck the checkbox , based on that i need to send the checked dates to my database.
Now, my problem is that i have no idea what to use to collect the dates list to send it to database.
i am giving the code which i have used in the Calendar Dayrender Event
protected void LunchCalendar_DayRender(object sender, DayRenderEventArgs e)
{
e.Cell.Text = "";
CheckBox c = new CheckBox();
e.Cell.Controls.Add(c);
c.Text = e.Day.DayNumberText;
if (e.Day.IsOtherMonth)
{
e.Cell.Text = null;
}
if (e.Day.IsWeekend)
{
c.Checked = true;
c.Enabled = false;
}
}
I have taken a DataTable control and have added colums to it. Now i want to add rows to that DataTable but when i am trying to create a DataRow of DataTable, an error is generated, showing "Value of type 'System.Data.DataRow' cannot be converted to 'dataRow'".
exact coding that i have written is as follows:
[Code]....
So, where i am getting wrong?
I have a manual binded grid view from a datatable. The datatable is also manually generated.
When I generate the datatable, I will have a datarow, and i was thinking to add a hyperlink the the last column of every row. I have something like this, but it just not giving my desired output.
[Code]....
I have a gridview with the columns below. Since Intern comment is going to be too long to fit it on the same line. I wanted to create a second row during databind and rowdatabound to display the Interncomments on the second line. But How can I put the comments inside a Literal control ?
Which will look like this
[Code]....
I'm using Accordion panes and gridviews which are created at run time. For each action item I create an accordion and then populate the tasks that are relevant to that action item in a gridview ( grid view is populated using the second query).
DataRow value dr[1].Tostring ( in the comments below in bold) is not updated with the next row value .
[code]....
I am using a template file for the ItemTemplate of the repeater control.
Within the template I am trying to get the value from the current datarow.
The code was then converted from VB to C# and I am getting the following error:
'System.Web.UI.Control' does not contain a definition for 'DataItem'
Below are the C# and VB versions:
[Code]....
Converted C#:
In .ascx...
<%#GetAssociationName((RepeaterItem)Container.DataItem)%>
In .ascx.cs...
Then get the value using the following method.
[Code]....
I have a user control which I am passing a DataRow to, Within this cotrol I have many ( textboxes ) which I would like to perform two-way binding to my DataRow. doing this will save a lot of work for me. I have searched high and low and can't seem to make this two-way databinding work.
View 9 RepliesI am working on asp.net application and code behind is c#
I am having gridview and adding the data to the gridview in the following manner.
[Code]....
Now i want to add <div> element like the one below after the table row <tr> in the generated html
[Code]....
I would like to retreive the data key (au_id) when the rowType = DataRow, so I can do a Sub query with the datakey Id.
I'm using this Microsoft Example:
<%@ Page language="C#" %> <script runat="server">
// Create a template class to represent a dynamic template column.
public class GridViewTemplate : ITemplate
{
private DataControlRowType templateType;
[Code]....
I have a ListView which has Product Code,Desc, ColorCode, Size and Quantity as the columns as well as a checkbox
The listbox sits within a panel.
The user enters the quantity and checks the item(s) they wish to purchase. They accept their selection by clicking a button the sit within the ItemView
Once they have made their order and clicked the button I want to make the panel disappear and display the items on the page.
how to iterate through the Listview and how to grab the items and close the panel
I have one grid which have 5 columns 1 for subject,2,3,4 for marks which have textbox to insert obtained marks,and last column have one lable to display total of (2+3+4),now i want total value on textbox event,when user enter any value to any column of textbox i need to display total of all three columns in total column. that things i did using javascript now i have one grand total text box in footer template according to sum of total i need to display grand total.so how can i get that footer template textbox in rowtype of DataControlRowType.DataRow.JAVASCRIPT :
<script language="javascript" type="text/javascript">
function sum(m1, m2, m3, txtTotal,txtFTotal) {
var mark1 = document.getElementById(m1).value;
[code]...
I want to loop through gridviewrowcollection using LINQ but cannot go do it..nstead of doing:
foreach (GridViewRow gd in gdNarratives.Rows)
{
}
I need to loop through a list of check boxes when the user clicks an export button.
The check boxes are in a panel and depending on what check box is checked I export the tables to excel.
Here is the code.
[Code]....
What happens is it exports only the first checked box to excel and then stops.
What am I doing wrong? I need to export all the checked checkboxes to separate excel files.
I am trying to add the checked rows into the database by looping through but im getting this error:
Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Heres my add click event:
[Code]....
I have two gridview. The first gridview with checkbox and if i check the checkbox in first grid that particular row will be binded to second grid. In second grid i have a textbox and dropdown. Have enabled pagination in both grids. When i check the checkbox in first grid i loop through all records in second grid to bind the previous values. Problem is since i have enabled pagination gridview row count only retuns current page row count. How to loop through all rows?.
View 5 RepliesI have a Gridview that has Paging enabled, and I need to loop through all the rows of the data. Therefore, I assume I need to loop through the datasource instead of through the Gridview.
I change the datasource of my gridview at various times when running.
How can I get a DataView of the GridView's current DataSource, so that I can loop through it?
Something like:
Dim dv as DataView = DirectCast(GridView1.DataSource, DataView)
except that this comes back as Nothing, probably because a Datasource isn't a dataview.
I know that the datagrid control loops through a database table from the first row to the last, but I want it to loop from the last row to the first. How can I do that? Also I wanted to know how could I drop some rows according to my needs while looping from end to start, so that the datagrid only displays those rows that I need to display?
View 2 RepliesI am trying to looping thru a data table and update a column on each row. However after updating I am getting both before and after update records in the data table. Assuming there is only one column called "Qty" withing the data table and I want to double the value in the column. I use the following to perform updating but not getting my expected result.
[Code]....
CellPadding only applies the padding to the header row. CssClass in Gridview, RowStyle or EditRowStyle has no effect.
View 2 Repliesi have a gridview in my website and i want to merge two cell of that in same column but in different row , for example i have a data about tours in an agency , now i define a tour that has two hotel with difference grade , i want tow show my grid view in this manner :
tour a
hotel a1
100 $
2010 / 5 / 5
hotel a2
200 $
i'm trying to check for an empty cell in a gridview.
On the RowDataBound event I tried the following:
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text.Trim()))
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text))
- if (e.Row.Cells[2].Text == "")
None of them worked.
I'm using boundfields. I can't use a TemplateField with a label because I need to check for other stuff for that column in the RowDataBound event by doing e.Row.Cells[2].Text - that only works if I use boundfields.
I have a gridview where I placed several item templates with text boxes in them. I want to enter a number in the text boxes and have the total displayed in the footer.
The last footer template is where I want to display the total. I've placed a label there.
Here's my Gridview
[Code]....