If the datavalue which is empty and not exist in the dropdownlist data source, it will prompt error. How to overcome??I want it will show 'Select Country' when data value is empty or is null.
<asp:DropDownList ID = "ddllabelCountry"
DataSourceID="objCountry"
DataTextField="CountryName"
DataValueField="CountryCode"
EnableViewState="true"
[code]...
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.
I am using a Gridview with datasource is a List. How can I show the header if the List is null or for a empty gridview?
View 4 Repliesis 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]
In a DetailsView Templatefield i have some binded Labels.
I need to show - hide Templatefield or the detailsView if Label1 is null - empty.
i am displaying various countries names in my dropdownlist and i want to display the data using gridview like whenever i change the country in my ddl it should display the relevant data according to the country??below is my code but i am unable to see any data whenever i change the country in my ddl gridview is not appearing??
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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 Replies<asp:DataGrid ID="DataGrid1" runat="server" DataKeyNames="REC_NO" BorderColor="White"
CellPadding="2" AutoGenerateColumns="False" Font-Names="Verdana" CssClass="table table-striped table-bordered table-hover">
<Columns>
<asp:BoundColumn HeaderText="REC No" DataField="REC_NO" Visible="False"></asp:BoundColumn>
<asp:BoundColumn HeaderText="Cheque No" DataField="CHEQUENO"></asp:BoundColumn>
<asp:BoundColumn HeaderText="District" DataField="EDISTRICT_NAME"></asp:BoundColumn>
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i have one dropdownlist in the gridview. i have to load that dropdownlist when that page is loaded. dropdownlist should contain the country list from country table
View 7 RepliesIn My project I have DoupDownList(ddl). In my ddl in need to bind country names along With Country Flag..So Can Any One Help Me In thi issue...Country Name And Country Flag Bouth i need to Bind in my ddl
View 5 RepliesI want populate the dropdownlist1 with Country and dropdownlist2 with City of that Country from web
Is there a place on web where we can get a list of countries and cities handy, and then populate into our dropdownlists in ASP.net page.
I have a gridview and i wanted to add a row when the gridview is empty, so that the header would be shown anyway. I have read about it on the web but i can't quite understand where exactly should i add the row.
My grid is binded by a sqldatasource. I am already adding a second header for the grid (to display some filters, and they need to be shown even if there are no results so that the user can perform another "search"), on rowCreated event, so, where am i supposed to add the row? Which events are fired even if the gridview is empty?
I've got a gridview in which I have a footer that I use to insert rows into the grid. However, if the grid is empty no data is displayed (including the footer). Is there a way to still show the footer row so a user can insert additional rows into the grid despite it starting out as empty?
View 5 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 RepliesI have a gridview with insert new row controls in the footer binded to sql datasource. I want to show the footer when the datasource is empty. Although the empty data template is there but any other solution you fellows can tell me ?
View 7 RepliesI am trying to show the footer template of a gridview on page load when there is no data in the database. The reason why im saying page load is that I have code to actually pull data from the database instead of a datasource.
View 15 RepliesHow i do check whether DateTime data type variable is null/empty in asp.net ?
View 5 Repliesthis 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 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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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 ...
<asp:datagrid
id="dgCertification"
runat="server"
Width="860px"
GridLines="Horizontal"
CellPadding="2"
AlternatingItemStyle-BackColor="Linen"
[code]...
I am familiar with populating a gridview with data. I am able to bind the Data pulled from the database into the gridview
gridview.DataSource = myDataTable;
gridview.Databound.
If I write the following code, teh gridview will no longer show the data
gridview.DataSource = null;
gridview.Databound.
My question is , I want to make the same thing with a user control that contain a gridview. when I use the user control in an aspx page, I am able to populate it with data, but when I try to make this code, the Datasource does not show, instead, I see .DV. So I tried this code but then , I do not see DataSource property instead I see DV (DataView), when I put .DV = null, I get an error message that the object is not in existed. any idea how to clear the user control gridview from its data.
I have set the value of an int parameter to the attribute of a textbox.The textbox can be empty or null, how to check whether the parameter is empty or null?
View 5 RepliesI have datalist in product.aspx page that bind from database and there is Repeater that bind from database... when I click on item from repeater it bind datalist... and I define Label =LBLerrorS that when there isn't any data in database it show this message="There isn't any Product"
below are code
<asp:Label ID="LBLerrorS" runat="server" CssClass="lblerrorS" Text="there isn't any product ." Visible="false"></asp:Label>
<asp:Repeater ID="RptWood" runat="server" >
<ItemTemplate> <li>
<a href='<%#"House.aspx?subset="+Eval("subset")+"&ID="+Eval("ID")+"&ListType="+(DataList1.Visible == true ? "Product" : "Store")%>'>
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In above code I put LBLerrorS.visible=true in else condition... problem is that whenever I select item from repeater it show lblerrors but I want it just show lblerrorS just when there isn't any data in database, actually I want when datalist is empty it show error .... How I can do it?
Is there one simple test that a person can do that covers all options where there could be a null, or "" value. When I google, I see so many options. I see:
if txtBox1.text IsNot nothing
if txtBox1.text.toString isNot nothing
if txtBox1.text <> ""
if txtBox1.text.toString <> ""
if isNull(txtBox1)
Is there on test that can cover them all?