Im using "string user = Database.GetMostRecentReply(id).Rows[0][2].ToString();" to get the username from the most recent reply in my forum.
But how do I check if the row is empty? Im using a try catch at the moment, but there must be a better way to do this.
I 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]....
I 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.
I'm .NET newbie and I have to write function which executes stored procedure and return DataTable.
my SqlConnection is already initialized and while running in debugger I can see DataAdapter returns values, but my DataTable is empty.
public DataTable ExecStoredProcedure(String spName, String uId)
{
DataTable dt = new DataTable();
try
{
conn.Open();
SqlCommand cmd = new SqlCommand(spName, conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@UnitIDList", uId);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
}
catch (SqlException ex)
{
throw new Exception(ex.StackTrace + ex.Message);.......
Gridview Sorting is not Working Since Datatable is Empty
Code: Dim dt As DataTable = TryCast(GRDV.DataSource, DataTable)
above code is returning Empty Gridview ..
code is below
Protected Sub GRDV_Sorting(sender As Object, e As System.Web.UI.WebControls.GridViewSortEventArgs) Handles StudentAssignmentgridview.Sorting
'If showImage = False Then
' showImage = True
'End If
[Code] ......
I have an array of a server control type, and what I would like to do is check if there any elements set inside the array. How can you check inside if for instance an array has no elements set inside or the array is empty or only one or two?
View 4 RepliesI make SqlDataSource1.DataBind(); with some parameters on button click,
then I'm working with a Grid onDataBound();
but if my SqlDataSource1 returns empty data I've got an error even if I'm trying to check if (GridView2.HeaderRow.Cells.Count != 0) so I guess I need to check it on SqlDataSource1 someway.
how to check var variable is empty
View 3 RepliesHow 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]...
how can i check to see if a value in my detailsview is empty? What i have now is not working.
[Code]....
How can i check to see if ViewBag.Data is empty?
View 7 RepliesHow to check for grid view empty or not.
View 1 RepliesI am trying to populate a gridview using two tables. I also have a strongly typed dataset and used the method on this page: [URL] the problem is that, when i try to use two table the gridview does show up (I checked through debugging that the datatable comes back as empty).
View 2 RepliesI 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?
How to check FileUpload Control Empty or not?
I tried the following code,
But it was not working.
if ((this.FileUploadPanelToExcel !=null ))
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 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?
i have two datatable, while adding rows in second datatable, i want to first check whether the id in the second datatable matches as in the first datatable, if not only then it should be added in the second datatable, else it should display a message...
i dont have any Primary Key defined on any column, so the rows could be repeatative.
How 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>
i'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.
How 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]....
I 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?
I need to validate textbox is not empty if check box is checked.
View 9 Replieshow can i check distinct val in col_1 of datatable and assign seq no to each distinct val of col_1 to col_2?
View 6 RepliesI am using Compute for summing up a datatable which has a condition. Sometimes, there are no rows inside the datatable matching my criteria so I get an exception on ComputeObject cannot be cast from DBNull to other types.Is there a way to check/filter the datatable to see if it has the desired rows, if yes only then I apply Compute.
total = Convert.ToDecimal(CompTab.Compute("SUM(Share)", "IsRep=0"));