Forms Data Controls :: Add Blank Row To Gridview When A Value Changes?

Dec 11, 2009 07:32 PM

I'm sure this has been posted somewhere else but my first couple of attempts to find a simple solution have been unsuccessful. I have a GridView that displays data sorted by a particular value. Ther will be x number of records for each one of these values, sort of like this:

value 1 data data data
value 1 data data data
value 1 .... ...... ......
value 2 ..... ....... .......
value 2 .... .......... ....
value 3 ..... ......... ....
etc, etc

Between each one of the "value x" sets, I'd like to draw a blank, empty row as a separator.


Forms Data Controls :: What Is The Value Of A Blank Cell In A Gridview

Dec 04, 2007 03:17 PM

I am trying to check if a cell in a gridview's selected row is blank. Nothing seems to be working. See the different options I've tried below. When I check an empty cell's text.length is tells me 6 ?!? Is that a tab and a space?


Or should I say what is the value of a blank cell in a gridview?

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Forms Data Controls :: Possible To Insert A Blank Row In Gridview?

Jul 16, 2010 04:36 PM

is it possible to insert a blank row in gridview when for example a varible changes then there is a blank row then then continues for Eg

Hearders "item" "batch number" "price"

rows apple 1 $1
apple 1 $1
(blank row)
orange 2 $1

is it possible ? & how....fml gridviews

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Forms Data Controls :: Adding A Blank Row In Gridview?

Aug 14, 2010 12:56 AM

Very new to C# although I have alot of older coding experience. Not much object orientated programming though. Anyways, I have a .net program I'm working on, basically to work on my skills although it will prove to be useful. I am keeping track of my work schedule. Currently, I am populating a datagridview from a sql 2008 express db. My columns are: date worked, hours, paid, and paidon. What I want to do is add an empty row whenever the date corresponds to a date that is "Monday". My goal is to line break every week. So that each work week (Mon-Sun) is seperated by a blank row. I would rather not actually have this blank row in the database. I would like the gridview to do this on the fly. Here is my gridview code in my default.aspx file:


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Forms Data Controls :: Gridview.sortexpression Is Always Blank?

Nov 25, 2009 07:21 PM

I am trying to sort my grid view and I dont want to use a datasource rather pull data from a query. Here is the header definition of the gridview: [Code]....

Also here is a definition of one of the columns:

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Forms Data Controls :: Add New Blank Row To GridView Within RowDataBound Event?

Feb 08, 2008 04:45 PM

I am having trouble trying to do this within the RowDataBound event.

If I the following...

int Index = e.Row.RowIndex;
DataRow NewDataRow = MyDataRow.DataView.Table.NewRow();
MyDataRow.DataView.Table.Rows.InsertAt(NewDataRow, Index); inserts a row but the columns are all filled out with the exact same data of the related row that the event is triggered on.

How can I get a blank row so that I can edit the colspan etc?

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Forms Data Controls :: Create Blank Gridview Single Row?

Oct 27, 2010 11:37 AM

I want to create blank gridview.

when user click insert button then display blank row with dropdownlist,and other label and column.

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Forms Data Controls :: Display Blank In Place Of 0 In Gridview?

Feb 24, 2010 05:34 AM

I have a gridview populated with some data.

There are following columns:

Reason, Remark1 & Remark2.

As per database designer's logic if there is no data in above field then he replace empty to 0 and in my gridveiw 0 is displaying whereever the cell is empty.

Now I just want to replace 0 to empty.

One more thing that if it displays 0 in a hyperlink Field then it should not be displayed.

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Forms Data Controls :: GridView Goes Blank When Click To Next Page?

Feb 02, 2010 05:29 PM

I have a single page with multiple gridviews.


The data binding is done manually in the code behind, which means you have to manually write the onpageindexchanging in there too. Normally that's done like so:


When you click to the next page on such a page, it is only blank if you have if(!Page.IsPostBack){} around your manual data binding. Well on this page with multiple gridviews I don't have that. But it's still blank when you click to the next page.

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Forms Data Controls :: Removing The Blank Column From Gridview And From Exel Also While Exporting Data?

Oct 29, 2010 12:07 PM

I have a requirement that i need to remove the columns from gridview which are blank but at remove funtion it gives me error so i make that columns visible false now its working fine but at the time of exporting data from gridview to excel it also export that visible= false columns in spredsheet and i don't want that blank or hidden column in my excel sheet

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Forms Data Controls :: Dynamic Gridview / Added A Blank Row In Grid?

Dec 08, 2010 07:51 AM

my gridview column coming from database dynamicly it may be 10 or it may be 20. i added a blank row in grid throughdata table . i want to write something in this row and change color.

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Forms Data Controls :: Delete Blank Row In Table Bounded To Gridview?

Jan 19, 2010 09:12 AM

GridView: grvResultPrimary Key: FLTIDTextBox: txtRemarksThere is a button named btnAdd in the FormView named FormView2.txtRemarks is outside the form.The scenario is that if user wants to add a record with empty textbox and click btnAdd then how to restrict user to add empty row to gridview?I have tried Validation by controling txtRemarks but it is not helpful for me because in the page there is a FormView1, FormView2 and grvResult.If I am applying validation then all other updation methods of FormView1 and grvResult are disturbing.Simple is that I want to give option to user that without empty data using txtRemarks, user can enter data to grvResult.

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Forms Data Controls :: Showing The Gridview Header Without Adding A Blank Row?

Mar 24, 2011 03:28 PM

I have searched all over the internet and there are just too many solutions that basically is not working for me right now unfortunately. i just want to display my gridview header and I dont want to add a blank row in any form.

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Forms Data Controls :: Gridview Sort Coming Back Blank

Oct 14, 2009 05:57 PM

I've got the following code to handle filling a gridview. They need to enter a user ID in a field and click an OK button. This works and data is shown. However, if they decide to sort the data by clicking on a column header, the gridview is blanked out (there are no data in it) and nothing is seen on the screen again. Then if they click the OK button a 2nd time, then the data shows up in sorted order. They houldn't have to click the OK button to sort by a column. Below is my code snippet. Why does the gridview come back blank when I click on a column to sort? I have the following properties set on GridView111:


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Forms Data Controls :: Imagebutton Onclientclick Causes Blank Row To Be Added To Gridview?

Jan 07, 2010 11:00 AM

I have an image button in my gridview which I'm using to open a new window.

The code for my image button is:


This works fine, in that a new window is opened correctly, however, clicking the button causes a blank row to be added to the top of my grid.

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Forms Data Controls :: Update A Blank Cell In Gridview Using VB And Post To DB

Jul 07, 2010 05:26 PM

I am trying to update the value of a cell in a gridview at the same as conducting a post back to the DB....

Currently I am not able to even find teh control to puchthe data back to the cell, do I need to update the DB first then let the query read the updated record?


How can I get the new birthdate back into the ("studentDOBLabel") on the template at the same time I update the DB?

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Forms Data Controls :: Gridview Databound Link - Target In Blank?

Jan 11, 2011 09:08 AM

I want to make a link in databound data which is stockQtt. How can I do that? and I want target is blank and the link page is AdjStock.aspx below is coding.

<asp:GridView ID="GridSql" runat="server" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="itemId"
DataSourceID="StockSql" Width="980px"
<asp:BoundField DataField="itemId" HeaderText="Item ID" ReadOnly="True"
SortExpression="itemId" >
<ItemStyle Width="5%" />
<asp:BoundField DataField="categoryId" HeaderText="categoryId"
SortExpression="categoryId" Visible="false" >
<asp:BoundField DataField="catDesc" HeaderText="Category"
SortExpression="catDesc" >
<ItemStyle Width="13%" />
<asp:BoundField DataField="model" HeaderText="Model" SortExpression="model" >
<ItemStyle Width="13%"/>
<asp:BoundField DataField="itemDesc" HeaderText="Description" ...................................

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Forms Data Controls :: Format Gridview Column Using DataFormatString To Display Blank?

Oct 22, 2010 06:11 AM

I have gridview where there is column charges. If charges value is $0.00, I need to display it as BLANK or NULL that is it should be empty. I tried few DataFormatStrings but no luck.

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Forms Data Controls :: Using A Session Field As A Query Parameter - Blank GridView?

Nov 17, 2009 06:35 PM

I have a seeminly simple task and am not getting the results I expect. I am fairly new to this, and am hoping for a shove in the right direction.I have set up a simple login control that works as expected. I am using the LoginView to replace the login control with a simple "Welcome Back <username>! Click this link"When I click the link, it takes me to the page I expect, and I can see the LoginName control I placed at the top of the page for testing.This page also contains a SqlDataSource and a Gridview that is based on that source. When I set up the data source, I clicked the Where button, selected "RegionRep" as the Column, "Session" as the Source, and have tried "Username", "username", and "User"... all with the same result, a blank page with nothing but the LoginName control showing.


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Forms Data Controls :: Adding Specific Number Of Blank Rows After Binding Gridview With Datasource

Jan 29, 2011 08:14 PM

i hav a gridview ... now i need to add certain number of rows... say 5 rows .... which would b blank .. the rows consist of itemtemplate of textboxes.. here is the grid ...


now i am binding this gridview with certain data say :


now the problem is if the row contains 2 data originally ... then it alwz shows up with only two rows with binded data... but what i want is 2 (databinded rows ) + 5 (empty rows with textbox ) = 7 grid view rows .... now how to do it ... after i hav binded the textbox with data already....with some empty columns corresponding to the above code ?

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Forms Data Controls :: Insert New Blank Rows In A Gridview And Insert Them In Database Multiple At A Time?

Oct 19, 2010 01:48 AM

I have grid view in ASP.Net 3.5. I need to add multiple blank rows in a gridview and then have to save them in database. How can I do that in most simplest way?

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C# - MVC - Blank Model Not Returning Blank Data

Jun 2 10 at 12:48

I have a form which a user can fill in x times with the data they want too. The form is posted to the following Action.

public ActionResult Manage(ProductOptionModel DataToAdd)
if (!ModelState.IsValid)
return View(DataToAdd);
var ProdServ = new ProductService();
if (DataToAdd.ID != 0)
//Edit Mode.
DataToAdd = ProdServ.EditProductOption(DataToAdd);
ViewData["Message"] = "Option Changes Made";
DataToAdd = ProdServ.AddProductOption(DataToAdd);
ViewData["Message"] = "New Option Added";
var RetModel = new ProductOptionModel() {ProductID = DataToAdd.ProductID};
return View(RetModel);

So at the bottom I blank the model (Leaving just the required field) and then return to the view. However the view holds the data from the previously submitted form. I have debugged the code and checked that the RetModel variable is empty.

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Forms Data Controls :: Create A Lookup Data Source Based On A Union Query With The Actual Data And A Blank Record?

Jun 01, 2010 12:51 PM

I'm new to 3.5 and trying to create a test site so I can figure out how to use it in the real world. I have created a FormView (Formview1) based on a Client table using Linq Data Sources. The page includes a DropDownList to lookup Clients. I have added a list option (<asp:ListOption value="" Text="(Select Client)" and set AppendDataBoundItems=true so my added option is displayed. I decided to try to use Formview with only the Edit and Insert Modes, and I have set the Default Mode = Insert. When you open the page, a blank Client record is displayed.

The Client record contains serveral lookup fields and they have drop down lists for each. When I select a client from the Client DropDownList, is get the following message 'ddlClientType' has a SelectedValue which is invalid because it does not exist in the list of items I had this problem before and decided the best way to handle this (in the interim) was to turn off foreign key constraints for each of the lookup fields (e.g. ClientType) in SQL Server. That worked for 2-3 days. Now the problem has started again.

When I develop in other applications, I would simply create a lookup data source based on a Union Query with the actual data and a blank record. How can you do this using Linq DataSources. Can you get access and modify the queries?

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Forms Data Controls :: How To Display A Blank Value When The Data Value Is '01/01/1900

Mar 15, 2011 02:48 PM

I want to know how to display a blank value when the data value is '01/01/1900 12:00:00 AM' on a gridview. I went through the details of '01/01/1900' in sql and the gridview display But couldn't find any combination of this type.

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Forms Data Controls :: The ControlToValidate Property Of 'RegularExpressionValidator1' Cannot Be Blank

Oct 16, 2009 05:17 AM

I created my GridView at runtime so my .ASPX page simply has the Gridview control and the event handlers like this:


Here is the error:

"The ControlToValidate property of 'RegularExpressionValidator1' cannot be blank. "

I don't know what the field name is when I generate a Gridview at runtime. It made sense that my code would work, but I am obviously misunderstanding how this works.

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Forms Data Controls :: Calculated Fields For All Of The Rows Is Blank

Jun 22, 2010 11:02 PM

I have a GridView bound to an ObjectDataSource. Most of the columns are directly databound, however one column is not - it's value is determined in code. The value is being calculated correctly at the RowDataBound event, however when there is more than one data row in the GridView, the calculated fields for all of the rows is blank, but the top row displays the bottom row's calculated field

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Forms Data Controls :: Adding Blank Row To Grid View Using C#?

Jun 09, 2009 04:29 PM

In my Gridview i can show 10 records per page. Suppose if i get less than 10 records i want to insert blank rows into the gridview.

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Forms Data Controls :: Can't Get The Blank Grid With 5 Rows To Show Up

Jun 25, 2010 03:30 AM

I found code [URL] that allows multiple-row inserts, and tried to convert it to I can't get the blank grid with 5 rows to show up -- for some reason the datasource won't bind.


Code gridview:


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Forms Data Controls :: How To Produce Blank DataTextField In RadioButtonList

Dec 17, 2007 04:20 AM

how I can have no text displayed next to the data in a RadioButtonList? When I do not set the .DataTextField attribute, it automatically puts a number in there (i.e. O 1 O 2 O 3). If I try to set the .DataTextField blank or to an empty string variable, it does the same thing. I have even tried to set the .DataTextFormatString attribute to a SPAN tag with the visibilty set to hidden which works but it spreads the RadioButtons far apart (i.e. O O O ).

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Forms Data Controls :: Web Form Displays A Blank Screen ?

Nov 05, 2010 02:25 PM

Web form displays a blank screen at

The front page code is located at

The behind code reads:


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Forms Data Controls :: Removing Blank Lines On Website End?

Apr 09, 2010 03:26 PM

I have some data im reading from an SQL Database onto a web page.

on the website end im converting each new line into a list item.

but in the database theres lots of blank lines between list items, so its showing each blank line as a list item.

so i just wondered if theres any way to remove those blank lines on the website end.

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DataSource Controls :: Blank GridView With Stored Procedure And Form For Parameters?

Jun 11, 2010 09:42 PM


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Forms Data Controls :: How To Handle Blank Fields In DetailsView Update

Nov 18, 2010 08:26 PM

I'm trying to use the DetailsView to make Updates. The problem is that it can't handle empty fields even though the underlying table field allows nulls.

I get a message like this if I change the "State" field to blank when doing an update

The parameterized query '(@Cust_ID int,@Cust_DL nvarchar(7),@DL_State nvarchar(2),@Last_N' expects the parameter '@State', which was not supplied.I'm using an object data source control which is calling the EditCustomer method in my Customer Class. I'm not sure how to fix this.


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Forms Data Controls :: How To Produce A Blank Record In A Dropdownbox Control

Mar 30, 2011 11:42 PM

I have a dropdown box control, populated by an Access data source, and linked to a form control which renders an appropriate record detail when a selection is made. All works as intended. My issue is that each rendering of the page shows the dropdown box carrying the link to the first record, with the detail portion of the page already complete with the information for that record.

I'd much prefer that the dropdown box would carry some text, like "Click to select..." leaving the detail part of the page empty at the first iteration of the page, allowing the user to pick the first record. I can't seem to find any way around this problem with the control or the data, unless I add a record at the top of the file that carries the text.

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Forms Data Controls :: Nested Grids Goes Blank When Page Index Is Changed?

Mar 16, 2010 05:52 AM

I have 3 nested grids as Parent/Child/GrandChild and I have assigned SqlDataSources to all the grids at declaration time. I place the SqlDataSource next to each grid as follows.


Because of this I am not doing anything in RowDataBound(...) event. But I used the RowCreated(..)event of Parent and Child grids to access session (Please look at the select statements of Child/GrandChild grids).

Parent grid's RowCreated(..) event puts the value in the session which is used by Child grid. Child grid's RowCreated(..) event puts the value in the session which is used by Grand Child grid.

GrandChild grid has paging enabled and whenever I click on page index, Child and GrandChild grids goes blank. Parent gird doesn't go blank because its select statement doesn't take any "select parameters".

how to overcome this problem. I am attaching .aspx and .aspx.cs files


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Forms Data Controls :: How To Validate A Text Box (if It Is Blank) Inside A List View Row, On Selected Index ?

Feb 08, 2010 03:37 PM

i have a drop down list and a text box, inside a listview row (and this is a repeating layout). i populate each dropdownlist with same contents ( these contents/items come from a custom collection object).

i have added a required field validator in the listview's item template, that has its validation group = the validation group of the drop down list, and validates if the textbox is blank or not. this validation takes place on the selected index changed of the drop downlist for that row.

1. on selected index changed, EACH dropdownlist validates only its corressponding textbox perfectly (which is what i want)

but if i enter some text in one of the textboxes after doing 1, the dropdownlist for THAT particular row, assigns the correct value to the text entered. but for other rows (for which i changed their corresponding ddls to test the required field validation and for which the text boxes are still blank), their ddls by itself assign the values to the blank text without validating.

markup of code for listview is [Code]....

code behind for the ddl selected index changed is [Code]....

method GetIndexFromId retrieves index of the custom object inside a collection depending on the Id (which is a property) of the object.

i notice that the ddl selectedindexchanged is being hit as many number of times as many rows i change (i.e as many ddls in different rows i change to check the required field validation)

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Forms Data Controls :: .when Load The Page To See The Results, All I See Is A Blank Gray Rectangle. No Graph Inside?

Apr 07, 2010 05:12 PM

i have created a .net chart, but when i load the page to see the results, all i see is a blank gray rectangle. no graph inside. (while if i split view it in VS i see the chart)here is my code,


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Forms Data Controls :: Checking Null Or Blank Text Boxes Prior To FormView Edit Update?

Jul 09, 2010 07:01 PM

I have a FormView that is loaded with a records from my DB. Some of the fields may be blank or null. I am trying to check the value of some of the text boxes to verify that the user has updated the fields prior to allowing a DB update from the Edit Template.

I can not seem to get the correct syntax on the if statment to check the value of the text box....


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Web Forms :: GridView - How To Fill The Blank Rows With Alternate Color

Dec 27, 2010 01:25 PM

I am having a gridview with alternative color i have used AlternatingRowsDefaultCellStyle. however, if my grid is not fullyfilled, ie the grid view page size is 20 and i have only 10 records in that page then the alternate row color will not apply for blank rows. My question is, How can I fill the blank rows with alternate color as well.

Hope there is some solution without adding empty rows at the end of the datasoure which will create problems while sorting the grids.

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How To GridView Textbox Always Return Blank Value

May 14 10 at 15:05

I added some textboxes to gridview using following code

<asp:TemplateField HeaderText="STD<br/>ID">
<ItemStyle BackColor="LightBlue" />
<div style="font-size:xx-small; overflow:hidden;">
<asp:TextBox ID="txtStandard" EnableViewState="true" Height="10" Font-Size="XX-Small" Width="50" Text='<%# bind("STANDARD_ID") %>' runat="server"></asp:TextBox>
<asp:AutoCompleteExtender ID="AutoCompleteExtenderDemo" runat="server"
TargetControlID="txtStandard" ServiceMethod="GetCompletionList"
MinimumPrefixLength="1" CompletionInterval="1000"
EnableCaching="true" CompletionSetCount="20">

I want to save updated values to database, But when I try to access values using string strs = ((TextBox)TwoHeadedGridView1.Rows[0].FindControl("txtStandard")).Text;

It always returns me the blank value for all the rows, Same thing happens for dropdown list it returns me originally selected value i.e. value selected at the time of writing dropdown box, there are no duplicate ids present on my asp form , This is my first interaction with customizing gridview, I want to somehow make it run,

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