This doesn't work. I've got an exception from SQL databse that column does not allow nulls.
<asp:SqlDataSource ID="MyDataSOurcet" runat="server"
ConnectionString="<%$ ConnectionStrings:MyConnectionString %>"
InsertCommand="INSERT INTO MyTable(Name) VALUES (@Name) WHERE NameID = 1"
<InsertParameters>
<asp:Parameter Name="Name" Type="String" DefaultValue=""/>
</InsertParameters>
</asp:SqlDataSource>
Is there any way that can I set default value as Empty.string in Model.
I have a column Name in the Model its not null field in the database with default value is Empty.string
is there any way that I can set this default property in the Model for this column?
I am using SqlDataSource control that retrieves information based on a city value from another control (textbox) on the page entered by the user.
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The query works fine when the user enters a name of a city. However, if I leave the textbox blank and enter nothing, no records are returned by the query.I need all records to be returned when user leave the textbox blank and there is no value of the city.How to do that?is there a default value can do that?
I'm trying to pass default value to a sql parameter which is
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I have several web forms which use a GridView linked to a DataSource control which is defined at design time as follows:
<cc1:pgsqldatasource
id="dsStates"
runat="server"
connectionstring="<%$ ConnectionStrings:PgSqlConnection %>"
oldvaluesparameterformatstring="Original_{0}"
providername="<%$ ConnectionStrings:PgSqlConnection.ProviderName %>" >
</cc1:pgsqldatasource>
As you can see, the connectionstring parameter is defined to a specific connection string name and I need to be able to set such a parameter to a different value, for example, to a session variable content.
I am using DAAB with stored procedures. I use stored procedures more then once if possible. If I add a parameter later in stored procedure, I have to supply value for this in functions where it is even not being used as well, other wise it shows an error that number of parameters are not same. if I add parameter in last of parameter list in stored procedure and set a default value for it and I may have not to provide value for this from functions where I am not using it.
View 1 RepliesI have pass following SQL Query to the through ObjectDataSource
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And I am passing parameter through QueryString and My idea is like when empty string is pass it should show me all records but when I am passing empty string ObjectDataSource is making NULL and I am not getting desire result
Sql constraint to convert empty string to null
View 7 RepliesI swear I'm overthinking this as I've tried different combinations to do an insert from Code Behind to my Sql DB.
This is what my table looks like:
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My code behind:
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I suspect that the problem may be my date. The format that goes from the UI is mm/dd/yyyy.
I am trying to get the 'userid' of the logged in user using the code below:
"MembershipUser myObject = Membership.GetUser();
String userId = myObject.ProviderUserKey.ToString();"
and later using it as a parameter to the stored procedure.
The logic here is, the user should login first in order to retrieve his/her album. when the user is logged in, im retrieving the 'userid' and using it as parameter to load the corresponding album from the database.
when i login and open the albumpage, im end up with this exception:
"Failed to convert parameter value from a String to a Guid".
What could be the reason and how can i avoid this exception.
by the way im using the aspnet_Users table's userid field.
I'm trying to compare a parameter of type String with a database field of type ntext. Below is my vb code. carDescription is a field in the database table that is of type ntext. The code didn't work because you can't use the equality operator.
Dim carDescriptionLookupCmdString As String = "SELECT carMake FROM car WHERE carDescription = @description"
Dim carDescriptionLookupCmd As New SqlCommand(carDescriptionLookupCmdString, dbConnection)
carDescriptionLookupCmd.Parameters.AddWithValue("@description", description)
Dim reader As SqlDataReader = carDescriptionLookupCmd.ExecuteReader()
I have a gridview with two bound fields. On clicking a button i want to display the values in first row of gridview in two textboxes. But if gridview cell is empty i am getting the text in textbox to which the value of cell is given as -' 'i know my problem will be solved if i use the template fields instead. But i want a solution while maintaining the bound fields ,if any.
View 2 RepliesI 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.
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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 defined a class:
public class ProjectSitesForGrouping
{
public int ProjectID { get; set; }
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How can I insert an empty value in my dropdownlistbox and have it as a default? I tried .Items.Insert(0, new ListItem("", ""); and it does not work.
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I am making a student registration form. For photo upload i want that when user open registration form then bydefault image should be shown and if user does not upload any image then by default image should be inserted in database but if user upload the image then that image should save in database.
For photo upload i have taken this code
<asp:Image ID="UserImage" runat="server" Width="140px" ImageUrl="~/images/default.gif" />Â
<asp:FileUpload ID="FileUpload1" runat="server" />Â
<asp:Button ID="btnUpload" runat="server" Text="Upload"
CausesValidation="false" onclick="btnUpload_Click" />Â Â Â
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returns the error: The parameter 'username' must not be empty.Parameter name: usernameI want to check if a user is logged. If not logged in redirect to loginerror.aspx.
This is my scenario. I have a couple of content place holders on a Master page which by default are empty.Two of the content place holders are laid out side by side. I'll call one MainContent and the other SidebarContent. What I'd like to see happen is if a child page has content in the SidebarContent, the width of the MainContent should be adjusted accordingly.Is there a way to determine at runtime from the Master page if the calling child page has populated the SidebarContent?How do I go about this, if possible?
View 1 RepliesIn one of the methods I'm using in my MVC app, there's a param that accepts a list collection of strings. If I have a string parameter, I can give it a default value of an empty string, but I cannot seem to give the list collection a default value of a new, empty list collection. I get the error that's beginning to seriously grate on my nerves about requiring a compile-time constant. getting the generic list to work with a default empty set?
View 5 RepliesI have a data entry form. the end user supposed to key in the data as integer. if they do not enter. I do not have default value to put. for the text, I will put the space as default value. Since there will be a lot fields, I really do not like to code as default zero while end user load the data again.
Dim iAAGraduate
As Int16If Len(Me.txtAAG.Text) > 0
Then
iAAGraduate =
CInt(Me.txtAAG.Text)End
If
Possible Duplicate: In C#, should I use string.Empty or String.Empty or “” ? just don't understand the benefits of using String.Empty over "". Aside it being strongly typed its longer.
View 2 RepliesI have a datagrid and I set up the paging based on how many rows there are like this
With dgBookings
.AllowPaging = True
.PagerStyle.Mode = PagerMode.NumericPages
.PagerStyle.PageButtonCount = 5
.PageSize = 5
End With
Is there a way to set the horizontal-align in the code too I tried adding this
.PagerStyle.HorizontalAlign = Right
and I get this errorArgument not specified for parameter 'Length' of 'Public Function Right(str As String, Length As Integer) As String'.
I have a textbox where email addresses are displayed at the click of a button. There is one problem, before the first email address there are two empty spaces. Is there any way of getting rid of them? The result looks like this: " emailaddress; emailaddress; emailaddress;"
Here's my button click:
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With script below, request to the server always sends empty string (even if value is not emtpty), where the data line is:
data: "{ 'folderName': '" + $(this).val() + "' }"
The html element under investigation is this:
<asp:TextBox id="searcher" runat="server" ClientIDMode="Static" CssClass="classificationFolder" />
Script is:
<script type="text/javascript">
$(document).ready(function () {
$(".classificationFolder").each(function () {
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The reason that I select elements by css class selector ($(".classificationFolder")) is that, this control is a user control and used in the same page more than once. That is why I'm not using $("#searcher").
I tested the code In IE8 and Chrome 8.0.552.28 beta. This issue is arising in both of the browsers.
On the other hand, request is sent to the server, client received response successfuly and response is processed on the client.
