ADO.NET :: Check Var Variable Is Empty?
Mar 30, 2011how to check var variable is empty
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Sep 5, 2010I have this code, how will I write the code so I can check if a textbox i empty? This way want work. Now it goes in if cellPhone != null all the time.
[Code]....
When To Check If Something Is Nothing? How To Check An Empty Textbox
Oct 15, 2010I currently do something like...
[Code]....
Now I know this works.. but what is the right way to have this? I don't want to be checking something twice instead of just having it written out once.
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Jan 25, 2010I make SqlDataSource1.DataBind(); with some parameters on button click,
then I'm working with a Grid onDataBound();
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ADO.NET :: Check If DataTable Row Is Empty?
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Empty Diagnosis Or Lack Of One Variable In SQL Server?
Sep 23, 2010I want to recongize that a nvarchar variable in stored procedure is null or not null.
and this example :
DECLARE @Count int;
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VS 2008 How To Check If Data Set Is Empty
Feb 22, 2011How can i check if dataset is emty some thing like follows
if dataset=emty then
msgbox("NO table")
else
....
End if
I am importing excel files from root folder, when file not there then message should apeear to avoid collapsing application.
Code:
ry
Dim strExcelConn As String = System.Configuration.ConfigurationManager.ConnectionStrings.Item("ExcelConnection1").ToString()
Dim dbConn As New OleDbConnection(strExcelConn)
Dim strSQL As String
[code]...
Web Forms :: How To Check If Detailsview Value Is Empty
Jan 17, 2011how can i check to see if a value in my detailsview is empty? What i have now is not working.
[Code]....
MVC :: Check To See If ViewBag.Data Is Empty?
Feb 28, 2011How can i check to see if ViewBag.Data is empty?
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View 1 RepliesState Management :: Empty Session Variable Comparison?
Feb 14, 2011I have this code in a button click event:
[Code]....
When the page is first opened, Session("LeverancieFilterExpression")) is supposed to be blank or empty so the next statement should be executed but this is not happening. Can anyone explain why? I have the .IsNullOrEmpty method elsewhere in the program and it seems to work. Also, I have
[Code]....
in the page load.
How To Check Empty DataList / The Name Bool Is Not Declared
Feb 26, 2010I am using ASP.NET and VB to display a message(label) while the datalist is empty like this
<asp:Label ID="lblEmpty" Text="No Data To Display" runat="server" Visible='<%#bool.Parse((dlErgebnis.Items.Count==0).ToString()) %>'></asp:Label>
I am getting a error "the name bool is not declared".
What is causing this error?
Web Forms :: How To Check FileUpload Control Empty Or Not
Oct 5, 2010How to check FileUpload Control Empty or not?
I tried the following code,
But it was not working.
if ((this.FileUploadPanelToExcel !=null ))
Web Forms :: How To Check Whether The Int Parameter Is Empty Or Null
Aug 17, 2010I 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 RepliesCheck Whether The Datetime Control Field Is Empty?
May 17, 2010I have a sharepoint datetime control named date. Now how can i check whether the the field is empty or not;
i have the following code
if(date.ToString() != "")
{
lbl.Text = "Not Empty";
}
i did not enter any date in that field but the above code is always executed.
it always have the current date.
How can i assgin empty string to selectedDate propert of Sharepoint DateTime Control?
C# - Listview - Check If Field Is Not Empty And Show A Link?
Aug 11, 2010How to check if an a field is not empty, and show a link? i tried something like this but i get error.
<asp:ListView ID="ListView1" runat="server">
<LayoutTemplate>
<asp:PlaceHolder ID="itemPlaceholder" runat="server"></asp:PlaceHolder>
</LayoutTemplate>
<ItemTemplate>
<h2><%#Eval("NC_Title") %></h2>
<%#Eval("NC_StartDate") %>
<p><%#Eval("NC_Abstract") %></p>
<%if(Eval("NC_Description").ToString().Length > 0)
{
%><a href="">Read more...</a><%
}%>
</ItemTemplate>
</asp:ListView>
Forms Data Controls :: How To Check For Empty Cells
Jan 13, 2010i'm trying to check for an empty cell in a gridview.
On the RowDataBound event I tried the following:
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text.Trim()))
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text))
- if (e.Row.Cells[2].Text == "")
None of them worked.
I'm using boundfields. I can't use a TemplateField with a label because I need to check for other stuff for that column in the RowDataBound event by doing e.Row.Cells[2].Text - that only works if I use boundfields.
DataSource Controls :: How To Check For Both Empty And Null Fields
Jan 28, 2010How do I check if my value is empty AND Isnull? I need to check for both, using ISNULL is not enough because the data can change just so that it is empty.
how I can change my query to accommodate this?
[Code]....
Forms Data Controls :: Check Sqldatasource Whether It Is Empty?
Nov 22, 2010I have a sql view of a table, I need to check whether it is empty, if it is empty, I need to hide a grid, other wise I need to show it.
Is there anything useful for me to check the sqldatasource?
As example:
SqlDataSource1.isitempty();
or such things.
Do I have to use dataset or such things?
Web Forms :: Validate Textbox Is Not Empty If Check Box Is Checked?
Feb 14, 2011I need to validate textbox is not empty if check box is checked.
View 9 RepliesActive Directory/LDAP :: Check If Length Is Null Or Empty?
Nov 17, 2010I'm fetching som data from AD and I notice that I'm getting an exeption and notice that one of the users field that I'm fetching is empty, how can I prevent exeption.
Here is the code:
[Code]....
WebMatrix :: Check For Null / Empty Strings On Dynamic Objects?
Aug 20, 2010What is the proper way to check for null or empty strings on dynamic objects? This is the only solution I've found so far:
if (admin.PasswordHash.GetType() == typeof(DBNull) || admin.PasswordHash == string.Empty)
If the field is null, the object returned is DBNull.Value, but if the field is empty string, it's return as a System.String object. This makes it impossible to do regular "admin.PasswordHash == DBNull.Value" check, as that will fail whenever the field has been set to empty string. Is my example the right (and only) way to go?