I am adding an Image control to grid view in its Row created event.But i am not able to find it in Rowdatabound event handler.
And the image is not getting displayed also.
Now if the move the code to create the Image control dynamically from Row created to RowDatabound event then it is getting displayed.
find my code here..
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So I have a gridview control and I am binding it's datasource dynamically base on a dropdownlist. The gridview contains autogenerated columns with auto generated edit buttons. The datasource binded to the gridview is IQueryable<T> where T will be different for different datasource.
My detail problem is below:
A GridView binded to datasource dynamically with all autogenerated columns. When user click edit link, it will display value in autogenerated textboxes.
When user click update link, I am able to capture the user entered value in the textboxes in RowUpdating event, then pass those values to Linq update function to update the database. Now, the problem begin when I try to dynamically add validation controls to each editing row. In RowDataBound event, I am checking the editrowindex then adding validation control to gridview cell and pointing to cell.controls[0] which is the textbox control when the row is in edit mode, I am dynamically setting the textbox control id so that the validation control can set controltovalidate property. The validation control works, but the updating function is setting everything on the grid to empty string.
I am check the textbox text value in the loop, which returns "" for all cells except the id column. It was returning the correct value before I add the validation control. I guess since I added the validation control on rowdatabound event, will it rerender it's own autogenerated textbox in edit mode so that the text value of textbox no longer available in rowupdating event?
Is there a better or correct way to get the cell textbox value? I am using ((TextBox)dc.Controls[0]).Text where dc is DataControlFieldCell in rowupdating event.
I've read a few articles on this, but I keep doing something wrong, and I'm not sure what. I took out all of my customization and just want to add a single header row to the very top of my GridView... Can someone show me how I'm screwing up? This is the code I'm trying to use...
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I have tried a few different ways of referring to the GridView table... e.row.parent, gv1.controls[0], etc, but nothing seems to work.
I don't get any errors, just nothing ever shows up when the GridView is rendered. I can't find the code using Firebug to look at the HTML either... what am I doing wrong?
(have also tried using "0" for the rowIndex when creating the new GridViewRow)
is there a way I can add a column dynamically from code behind to the gridview in my page?
View 5 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.
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Now i want to add <div> element like the one below after the table row <tr> in the generated html
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am binding a gridview to datatable ...and now i want to add a linkbutton/hyperlink as one of the columns in gridview (similar to checkbox field) ...am adding the Lbtn inside a template field ,but i want that column to come as last column ..but its coming as first column,,,how to acheive that??
moreover ,whn i clk on eack linkbutton a pop-up window has to come with submit and save and close buttons and functionality(is it better to use linkbutton or hyperlink??)...am using vs 2005
I follow this code [URL] it works. But the example is show only for 1 row.. come to my case when user want 12 rows for the first time gridview row load. I manage to add it by using for loop. but i stuck at the how to set previous data when user add new row to 13th row. The gridview seems like refresh and the entered data is gone!
View 1 Repliesi have a gridview control i added checkbox contrl dynamically but i am not getiing the reference of checkbox in button clilck event here is my code Gridvew
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I need to let my user add rows dynamically to a table, and after doing some research, it seems the best way to do this is through a GridView bound to a DataTable. However, I'm really struggling adding dropdownlists to the datatable, and this showing them in the gridview.
Here's the design I want:
ddl1 | ddl2 | ddl3 | ddl4 | ddl5 | ddl6 | ddl7 | textbox
When the user opens the form, he or she will be presented with one row. ddl2 etc will be populated when ddl1 is selected etc etc. When appropriate, the textbox will be enabled allowing the user to enter a comment (this is to report errors, and since users are, at best, not to trust to write the same thing twice, I need to use ddls.
Now comes the question - how do I add a ddl to the datatable? I've tried several ways, but I cannot get them added.
i am kind of new in the .net world. I would like to know how you can add a link column with an image to a datagriid.
P.S. i am using Visual studio 2005.
Is it possible to add RequiredFieldValidator in DetailsView dynamically (programatically)?
View 2 RepliesHere I am binding a gridview. I dont know exactly how many rows it will exists. there may be from 1 to n rows possible there are 4 columns.
Now what I want , i.e. after gridciew binds records, suppose there are 4 rows are bounded to gridview, I want to send all rows data through mail, but in my html format there are fixed rows. I want to add rows according to throws which gridview having.
suppose gridview binds 3 rows the mail format should be like this
Date From Date To Place Days
12/12/2010 14/12/2010 Mumbai 2
12/12/2010 16/12/2010 Goa 4
12/12/2010 20/12/2010 Pune 8
1. first tell me how to get this data from gridview in variables so that i can put them in my mail format
2. this condition if grid bind only three records cos I have fiexd rows in my html format.. but if grid is haing 5 records then how will I add rows to table in my mail html format
I have a listview which has a complicated Item template that contains a repeater, an objectdatasource and some other controls. On the first run I am only showing 10 Items of the listview. The user has an option to show 10 more ListView Items. If user clicks on show older items; the listview shall add another 10 items. how to go around this since my list view already has a datasource and I don't want to rebind the whole listview all over again. Instead; I just want to add another 10 items.
View 7 RepliesI am trying to dynamically add a queryextender expression to the page. something like, when the user clicks a button, we need to add a OrderbyExpression. The following is the code used. It works when added in Page_Load but doesn't when added on a button click event. Upon button click the page just reloads and ignores the filter condition.
OrderByExpression obex = new OrderByExpression();
obex.DataField = "ProductName";
obex.Direction = SortDirection.Descending;
ThenBy tb = new ThenBy();
tb.DataField = "UnitsInStock";
tb.Direction = SortDirection.Ascending;
obex.ThenByExpressions.Add(tb);
this.q.Expressions.Add(obex);
where queryextender1 is the ID of the queryextender
Scenario : I want to add data from database to checklistbox on page_load and checked data should be stored in other table.I want to bind data to checklistbox like a gridview, i m trying but i m not able to.
View 2 RepliesI have a grid. I am building and populating it dynamically in C#. Below mentioned is my issue:
string s1 = "string1";
string s2 = "string2";
And then I have a header cell text which needs to be populated like this.
headercell.text = s1 + new string(' ', 20) + s2;
I am not able to get the extra 20 spaces between s1 and s2. It gives me just one space instead of 20 spaces.
I tried using headercell.text = s1 + s2.padleft(' ', 30); even then I am not able to get more than one space between strings s1 and s2.
I am stuck in chart controls...Here is my prob... There is a ListBox containing some items...when user selects multiple items from the list box I want to generate a dynamic table with the number of columns same as that of the number items selected in the listbox. And for each selected item I want to show a seperate chart in the columns...Currently I want the same chart control for every selected item (i.e. a static hard coded chart that i will replace later by dynamic values)....I am using a method that draws a chart control using a sample dataset... I am calling it each time when a new column is created..Also the DrawChart method executes for the first column only and throws an index out of range exception! after the first execution...my code is not working...here
my code...
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I have a Data Repeater to which I need to add x number of images depending on their existence in the database.
I need the images added within hyperlinks for Javascript functionality. In order to dynamically add the hyperlinks and images I have placed them within a panel in the data repeater and am adding them in the ItemDataBound event.
The problem is that only the first image is being written to the datarepeater.
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Im into a situation, where, I need to embed linkbutton to gridview to display one field (TITLE) from database. It was done as I've added it in the itemtemplate. Now my situation is bit refined; I should add a text box and another linkbutton which should be disabled on page load and when ever I click that linkbutton which is displaying (TITLE) should make the textbox and another linkbutton visible by displaying corresponding values from the database in the textbox.
View 5 Repliesi created a gridview with two columns and 8 rows dynamically. All the rows are empty and editable at runtime. I am giving column names for this grid from some other .aspx page by passing column names using querystring.Because i am using this grid for three different pairs of column names. i would like to know how to apply Required Field Validator, Regular Expression Validator and Range Validator on Gridview textboxes. So that by using those validators i want to validate user inputs. And i would also like to know how to add rows at runtime for this grid.
I am using ASP.net 2.0 and C#.net for this.(Visual Studio 2005)
The code i am using to create gridview is below.
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I have an issue with gridview and ascx's inside. Into the item template I'm dynamically loading ascx files depending on the row hiddenfield value. Ascx control is then "opened" in panel with modalpopup extender. The issue is ascx control with ceratin programming logic behind does not postback in this scenario.
Is there any workaround here?
Here's html snippet
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I am new to ASP.NET And I am have THE hardest time understanding how to work with forms in ASP.NET. Here's what I am doing:
Dynamically add User Controls to a PlaceHolder based on some int value (which currently is passed in a HiddenField).Fire an event if the WebControls inside of the User Control change, then handle that event in the Main Page (i.e. save the input to DB)When the user clicks the "Next/Continue" button, the next controls for the next page are loaded. And I guess maybe I just can't seem to get how things work in ASP.NET, because I am really struggling with the general idea of how ASP.NET flows.
Should I be dynamically loading the controls in Page_Init, or Page_Load? Or should I load the controls when the buttonclick event is fired?Do I have to add the axCtrl.OnDataChange += new EventHandler(HandleAxControlDataChange); line on Page_Load? Or should I put this in When I first load the UserControl, I need to initialize some WebControls within the UserContorl. Is there a way to know if I have loaded new user controls into my placeholder? I can't use Page.IsPostback, because after the first page, every page is a postback from the buttonclick.
Here's what I have:
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Here's the markup from my ASPX file...
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I am trying to add a new row into a gridview but for some reason i'm having a problem in the for loop.
Directly goes to dtCurrentTable.Rows.Add(drCurrentRow) and of course, have an error "'row' argument cannot be null.
Parameter name: row", because the dtcurrentTable.NewRow was not executed.
Why is this happening?
Private Sub AddNewRowToGrid()
I want to add a new row to gridview.
View 5 RepliesI need to set some attributes on user controls that I'm dynamically adding to a page placeholder. Is this possible?
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