is it possible to display Null. if my sql data is null while binding it with gridview in asp.net
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for example like this
[IMG]http://i53.tinypic.com/n51ogh.jpg[/IMG]
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.
No sense in showing a competely blank column. how to make a GridView column invisible if every cell in that column is empty?
View 3 RepliesI 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.
When I click on the Alphabets it will show the details of a player...however, when that particular letters has no details of the player..I want to show."No results can be found"..Is there anyway to do it?
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["CurrentAlphabet"] = "ALL";
this.GenerateAlphabets();
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In a DetailsView Templatefield i have some binded Labels.
I need to show - hide Templatefield or the detailsView if Label1 is null - empty.
I have a detailsview on my page binding a table with information about the employees. They can update their information. Some info should be visible but not updateable. I could change the update command not updating but I like the control where I can set the column to read only. In that way the employee will find the data visible and they will see that the field/column cannot be changed. But having the column read only will return a null-value into that column when editing and updating anything. Why is that? Shouldn't it just update it's read only value?
View 2 Repliesprovide an example to do that... "Hide column if row is empty" in Databound()
datasource could be .1
coulmn: id-value1-value2-value3
row: 1-4-3-NULL (output: hides row value3) because the value is NULL
.2
coulmn: id-value1-value2-value3
row: 1-4-NULL-NULL (output: hides row value2,value3)
I have a GridView and the second column (ie column 1) is:
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On the GridView's SelectedIndexChanged event I have:
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fullname is a Label alright, but its Text property is an empty string. How do I get the actual string that is shown in the cell?
I want to hide a grid view column if that column is empty. How do I do this? I dont have much exp. with grids.
View 23 RepliesI am using ListView to display the Data.
I am getting some text or empty string from backend for a particular column.
If i got empty string i need to bind with an imageButton in that row.
and if i got a text i need to replace the imagebutton with text.
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I just hit the same problem as described here: [URL] - GridView paging with ObjectDataSource. I see the column headers but no data, and I know for a fact my method returns a DataTable with data in it.
View 1 RepliesI have in my code a gridview that I redirect to excel, it works fine when I have data in the data set. waht I want is to show column headers when there is no data right now what i get is empty sheet.
View 7 Replieswant to display gridview column heading when mouse over to the particular column in the gridview.
View 9 RepliesI 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:
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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.
I have a grid view which is made up of bounded and template columns. I have a check box which i select to show all/ show non empty columns.
My issue is hidding the template columns. I have the following code:
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My issue is with the piece of code
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How do I find the ID of the label in grid view column for the template column?
this is my sql query and its work fine in my code but it only check ParentDeptID IS NULL it not working when ParentDeptID field is empty how can i check it
("select DeptID,DeptName,(select count(*) FROM HrDept " _
& "WHERE ParentDeptID=sc.DeptID) childnodecount FROM HrDept sc where ParentDeptID IS NULL ", _
objConn)
I have a
<%# DataBinder.Eval(Container.DataItem, "starttime") % >
i.e. starttime is field in mysql which i bind to asp:Repeater. and want to print as <span>Start Time:
<%# DataBinder.Eval(Container.DataItem, "starttime") %> </span>
if starttime is not blank ..and if blank, print nothing.. How to do this in asp.net ...
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.
View 7 RepliesI want to hide 'image55div' div if [imagepath5] COLUMN is null how to achieve it!
below is code.
<div id="image55div" runat="server"> </div>
private void DisplayArticle(string id)
{
SqlDataAdapter da = new SqlDataAdapter("select * from activity Where id=" + id, con);
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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.
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:
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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.
i was able to implement a gridview with insert, edit and delete features, but I NEED to be able to display an empty row for insert even if the select statement returns no row. How do I do that?
Here is the code I have so far:
<asp:Label ID="Label2" runat="server" Text="Accession # "></asp:Label>
<asp:TextBox runat="server" ID="accession_num" AutoPostBack="True"></asp:TextBox>
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:pdmstestConnectionString %>"
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How to display empty GridView to insert new record if no data retreived for some record on the result from data table?Actually i am trying to give a user an option to add recrod from Gridview. On result of some query it is perfectly displaying data and a footer row with the insertion textbox but when there is no data in the gridview it is not displaying. It should display with footer having insert textbox.
View 5 RepliesI have a listview control bound to an SqlDataSource. As part of the formatting I want to add a title to the data returned from my database. For instance if the data base returns a phone number I want to add 'Tel.' first. However I do not want to diplay this
title if the datafield is empty. Here is what I have done so far.
<ItemTemplate>
<asp:Label ID="BusinessLabel" runat="server" Text='<%# "Tel. "+Eval("Business") %>' CssClass="TeleStyle" />
Or This:Tel.
<asp:Label ID="BusinessLabel" runat="server" Text='<%# Eval("Business") %>' CssClass="TeleStyle" />
</ItemTemplate>
Business is a phone number. If the data field contains a number I get: Tel. 1234 123456. If the field is empty I get Tel. If Business is null I want nothing dsplayed, how do I do this?