Forms Data Controls :: GridView Null Column Value?

Nov 9, 2010

I take a gridview on my web form ,In one column i display image & view link.My prob is that when any row has not image then do not show view link.

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Forms Data Controls :: Making Visible Of Gridviwe Column If All Values In Selected In A Column Is Not Null

Dec 30, 2010

I have gridviwe having 2 columns:

1) DocNumber 2)Title

query select docnumber,title from tbl_docs.

BindwithGridviwe(sql);

Now the issue is that that every document doesn't has document number. I want to make invisible the docuNumber column of the grid viwe if all values in the docNumber retrieved are null.for example:

docnumber tite
null Document 1

null Document 2

null doucment 3

null document 4

if returned result match above where all docnumber are null then make the gridviwe docnumber column ivisible eslemake the greidviwe column visible.

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Forms Data Controls :: Displaying A Null Or Empty Cell For A Null Datetime Database Value In Gridview?

Dec 6, 2010

I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?

I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.

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Forms Data Controls :: Cannot Insert The Value NULL Into Column 'UniqueID'

Jan 18, 2011

so i have a FormView bound to an SQL datasource.

Using the Auto generated insert/update/delete. "Cannot insert the value NULL into column 'UniqueID'"

The FormView Default view = Edit

I have set the PKey and the Datasource is loading the record from a session. The record is loading no problem, just wont update.

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Forms Data Controls :: Display Null If Column Is Empty

Sep 10, 2010

is it possible to display Null. if my sql data is null while binding it with gridview in asp.net

[Code]....

[Code]....

for example like this

[IMG]http://i53.tinypic.com/n51ogh.jpg[/IMG]

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Forms Data Controls :: Cannot Insert The Value NULL Into Column 'idUser'?

Mar 1, 2011

I have this error when trying to insert a new record through a 'New' button in asp:DetailsView control. Error details:Message: Sys.WebForms.PageRequestManagerServerErrorException: Cannot insert the value NULL into column 'idUser', table 'C:INETPUBWWWROOTVIEWS1APP_DATADBSEARCHRESULTS.MDF.dbo.UserDetails'; column does not allow nulls. INSERT fails.I have an typed dataset xsd & adapter, where i automatically generate delete, update, insert commands. I also use SqlDataSource.The field idUser doesn't allow nulls on database level, and in the xsd I marked the following properties:AllowDBNull = false, AutoIncrement = true, AutoIncrementSeed = 0, AutoIncrementStep = 1, ReadOnly = true, Unique = trueMy code is:

[Code]....

How to solve the problem or where I should look for the problem?p.s. If i have in DetailsView, idUser field properties set: InsertVisible="True", ReadOnly="False" and i enter a value manually, the records successfully inserts.

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Forms Data Controls :: >>>want To Display Gridview Column Heading When Mouse Over To The Particular Column In The Gridview?

Oct 12, 2010

I want to display gridview column heading when mouse over to the particular column in the gridview.I am working in VisualStudio 2005 with MS.Net2.0 framework.I don't want to use ajax.

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Forms Data Controls :: Attempting To Bind Data From A Dropdown List / Cannot Insert The Value NULL Into Column 'COUNTY'

Dec 14, 2010

I am attempting to bind data from a dropdown list that was populated from another datasourceID. I've bolded what I believe is relevant to this issue in the code below. But basicly its binding the proper county on the pull down menu but when I hit form submit it dosnt postback that info instead its null.

[code]....

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Forms Data Controls :: Gridview 2nd Column Decrease After Expanding The 3rd Column's Gridview?

Oct 29, 2010

[Code]....

Main Gridview[Code]....

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Forms Data Controls :: Gridview Column Change / Replace A Column Data Field Valueto 'Not Applicable'?

Jan 6, 2011

I have a gridview which is binded to a Sqldatasource. I would like to replace a column data field value to 'Not Applicable' if that column has got a value of 2 in database.

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Forms Data Controls :: >>>Display Gridview Column Heading When MouseOver On Particular Column?

Oct 12, 2010

want to display gridview column heading when mouse over to the particular column in the gridview.

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Forms Data Controls :: Add A Button At First Column Of Gridview And Get Cell Value In Another Column

Jul 22, 2010

How to add a button at first column of gridview and get cell value in another column?

For example, add a button named it as "Click me". Once user clicks will get third column cell's (ID) value.

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Forms Data Controls :: Make A GridView Column Invisible If Every Cell In That Column Is Empty?

Mar 4, 2011

No sense in showing a competely blank column. how to make a GridView column invisible if every cell in that column is empty?

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Forms Data Controls :: Display Text In 2 Rows And Then A Gridview Column - Third Row Is Displayed As A Row Under First Column

Jul 14, 2010

I have a gridview with 3 columns. In second column I want to display some text in 2 rows and then a gridview.
Here is my code:

[Code]....

The problem is my third row is displayed as a row under first column. How do I make it a separate column in my girdview. Not sure what is going wrong.

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Forms Data Controls :: Gridview Column Validation When The Sum Of Column Value Is More Than 100?

Jan 8, 2011

I am using GridView ,I want to do a validation like if i edit any one of the Cell in that column, it will through the validation when the sum of column value is more than 100. How can i do this validation?

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Data Controls :: Rotate GridView Rows Into Column With Image Column

Apr 27, 2016

I saw post [URL] .... which is converting rows into column item,quantity ,price. I have one other image field .how can bind image in this program?

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Data Controls :: How To Hide Column In GridView And Access Value Of Hidden Column

Aug 16, 2013

As per my requirement, I am getting CompID, Company Name and URL from SQL database. I want to display just CompName and URL in gridvew. So, I need to hide the CompID in gridview. One way I can do BoundField field Visible to false but I need to retrive that compID id when user selected any of the row. if I set visible to false user wont see any compID in gridvew but I want access the selected compID also using SelectedRow.Cells[1].Text..

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Data Controls :: Change Value Of GridView BoundField Column Based On Value From Another Column

May 7, 2015

I am using item template and eval function in the gridview to display the records. Can I add a coulmn which is not in the table?

I have to add some columns which is not in the table and assign the values from code behind to that particular column

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Data Controls :: Get Column Index Of A Selected Column In GridView

Feb 3, 2014

I have a grid view with 4 columns and 12 rows.  Getting the row index is not problem; ;however, I cannot find a way to get the column index of the cell that i select.

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C# - Binding Nullable Bit Database Column To CheckBox In GridView - Crash When Null

Nov 24, 2010

I'm trying to bind a nullable bit column, which at the moment is mostly null, but I need to somehow convert the null to a 'false' on runtime because it doesn't bind to a checkbox if it's null. But, I am currently unable to change the default value and update all records accordingly - is there a way to do this in runtime?

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Forms Data Controls :: Replace Figures With Null In Gridview?

Nov 9, 2010

i have a grid view that displays a load of figures, and as there is a lot of zero's in these tables i wondered if it would be possible to just display nothing were there is a "0" ... just to make it look cleaner?

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Forms Data Controls :: Null Fields After Update In Gridview?

Apr 13, 2010

I have a Gridview showing the data on one of my tables, and when I try to edit the data in one of the columns after I click update, rather than updating the record with the new value I typed in, the rows become null as in, everything in the row I just edited disappears. This inmediatly makes my application crash because one of the fields in my table (IssueDescription) doesn't allows null values.

This is the code, which is actually 100% auto-generated from when I created the GridView control and specified in the options to implement update, delete, edit options.

<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" DataKeyNames="ticketNum"
DataSourceID="SqlDataSource1" [code].....

What is making the rows turn into null after the update? I did some research and tried to define the Update behaviour myself using RowUpdating function. After hours of learning how to use it I got it to "work", but because the Update turns everything to null when it updates, the sqlconnection command I use to do the query sends null anyways. I can paste the C# code if you'd like to see it, though I'd rather not use it if the auto-generated by asp above can be fixed instead.

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Forms Data Controls :: Gridview Datasource Is Null In Postback?

May 10, 2010

In asp I want to add row to my gridview when I read barcode. But when I want to add second row , gridview.datasource = null. So, my first row is removed from gridview in TxtBxBarcode_TextChanged event.

TxtBxBarcode and gridview are in the different update panels.

How can I prevent this "gridview.datasource is null when Postback" ?

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Forms Data Controls :: Gridview Datasource Null When Sorting

Jan 11, 2010

I have 4 gridviews on a page that get databound with a datatable from sql. So I have created the sort/paging events for each. These were working fine. However now they do not work.

[Code]....

HTML Declaration:

[Code]....

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Forms Data Controls :: Gridview Non-visible Values Always Go To Null?

Jun 24, 2010

Whenever you turn off the visibility of a column in Gridview, on Edit, the value becomes null because its never bound. The only way I know of stopping this behavoir is to put it in the DataKeyName list. Is there any other way to prevent this? I have quite a few columns that will not be displayed in this "release" but I want there for future extensibility. Also, in some cases these values will be used for calculations but the user should not see them. Is there no toggle property for "non-visible" items to remain "unchanged" or something of the sort?

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