How To Bind/eval A Field Only For Inserting/writing
Aug 27, 2010I got the difference between Bind and EVal from here. Bind will do both way reading and writing. And Eval do only reading. So any function only for writing?
View 1 RepliesI got the difference between Bind and EVal from here. Bind will do both way reading and writing. And Eval do only reading. So any function only for writing?
View 1 Repliesi have one hidden field and i want to bind it with two values of my data base separated by an coma. some thing like
->asp:HiddenField ID="hfRstidDate" runat="server" Value=<%# DataBinder.Eval(Container.DataItem, "tsk_ID"),DataBinder.Eval(Container.DataItem, "Date_Worked").ToString())%>
I have a dropdownlist that gets data through entity objects, but with a navigation. But I get an error trying to do this.
<asp:DropDownList ID="ddlVacancy" DataValueField="ID" DataTextField='<%# Eval("Position.Name") %>'
runat="server" Width="200px"/>
I have the code below that works fine, but I need to have more than one field using the same command.
[Code]....
I want to know where lies the difference between these two.I had a google search on this topic and a lots of replies and each of them tell the same thing:
Eval means one way binding(i.e;readonly)
Bind means two way binding(i.e;both read as well as write the datasource)
but none of them explained it more clearly.all i want to know is how can i use the Bind to update/insert something from the datasource?
I'm trying to format the following:
<%# Bind("TimeOfDay","{0:HH:mm:ss}") %>
<%# Eval("TimeOfDay","{0:HH:mm:ss}") %>
<%# Bind("TimeOfDay","{0:HH:mm:ss tt}") %>
[code]...
my link button -
<asp:LinkButton runat="server" ID="lbtnEdit" Text="edit" OnClientClick="javascript:msgDisp('<%# Eval(LocationId).toString() %>')" />
and the javascript msgDisp is-
<script type="text/javascript" language="javascript">
function msgDisp(lid) {
alert(lid);
}
</script>
but it is not giiving LocationId in pop but the whole string <%#......%> is comin in popup message. How can I pass Eval values in javascript.
I have four fields on my insert form: Server, Farm, Silo and Reason. Farm and Silo populate based on the name of the server that is entered. If I take out the SelectedValue='<%# Bind("value") %> the form doesn't error out, but the fields don't post back to the DB.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Page Language="C#" %>
<html dir="ltr" xmlns="http://www.w3.org/1999/xhtml"> runat="server">
<meta content="en-us" http-equiv="Content-Language" />
[code]...
I m tring date bind from database.
I have a date=2/2/2010 12:00:00 AM
i want to show only 2/2/2010
I m use that code source with a Repiter control <%#Eval("Course_Date")%>
I have a repeater I've databound with a generic arraylist from a LINQ query (.ToList() ) in the code behind.
I was using
<%# Bind("FirstName")%> but noticed
<%# Eval("FirstName")%> works just as well.
Is it better to use Eval or Bind? or does it depend on the situation?
I have a textbox with textmode :password.
But after the postback the value disapears.
How can i retrieve this string value as simple as possible together with a very basic encryption?
I am getting the following error
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
but all I am trying to do is inside a ASP.NET REPEATER Control
<% if ( Eval("Message").ToString() == HttpContext.Current.Profile.UserName) %>
<% { %>
<asp:ImageButton runat="server" etc.... />
<% } %>
I have a label in a gridview where the text is set to <%Bind("lname")%> . I want to make it say thiis <%Bind("lname" + "fname")%>. I've been having a hard time making .net do this. I also want to add a "," or some other unrelated caracter?
View 2 Repliesi have a FormView, it renders fields from a SQLServer database but also much static text specific to the database value I get. I dont know if this can be done in the code behind and put all this in a function . I put it in my formview
<ItemTemplate>
<% If Eval("Feature1") = "Yes" Then %>
<%# Eval("Username") %> A lot of text
<% elseIf Eval("Feature1") = "No" Then %>
<%# Eval("Username") %>
A lot of different text
<% End If %>
</ItemTemplate>
If I do the code above I get error message:
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. Can this be done within the formview?
i would like to know if its posible to change an eval binding of a label on a mouse click. something like:
<asp:Label ID="Label2" runat="server" Text='<%# Bind("TitluAnunt") %>'></asp:Label>
I want to bind radio button with sql query in gridview
I want to make on off radio button according to sql query output in gridview
How to make runtime radion button on off in girdview
I have some hidden fields to which i want to assign values through properties in .aspx.cs file.How can i do so?
The following gives the error: Compiler Error Message: CS0103: The name 'Business' does not exist in the current context
[Code]....
[code]....
gives me error: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
I could write : <%# Eval("SaveDate") != DBNull.Value ? do magic But I need to do lots of html magic in if statement.
I know I should add # in order to use Eval, but not sure about correct syntax.
I have a big problem...I have made a page has a Data FormView controland the insert template of this Formview control has DropDownList to allow the user to choose section (SectionsDDList)..and there's also another DropDownList allow the user to choose a teacher (TeachersDDList)...more infothe SectionsDDList get the section list from SqlDataSource control which the "Select Command" of is:"SELECT section_id,section_id FROM sections"the TeachersDDList get the teachers list from another SqlDataSource control which the "Select Command" of is:"SELECT teacher_id,teacher_name FROM teachers WHERE (section_id = @section_id)"finallyI want the TeachersDDList to be filled with teachers according to the selected section from the SectionsDDList...So,I enable the Auto postBack function of the SectionsDDListand add the next code for the SectionsDDList_SelectedIndexChanged event:TeachersDataSource.SelectParameters["section_id"].DefaultValue = ((DropDownList)sender).SelectedValue;be aware that both of the SectionsDDList & TeachersDDList have been Bounding to a column...and the problem I have faced is that:Exception Details: System.InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.maybe you want to know the Stack Trace:[InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.]
System.Web.UI.Page.GetDataItem() +93
System.Web.UI.TemplateControl.Eval(String expression) +33
ASP.cpanel_managecourses_aspx.__DataBinding__control82(Object sender, EventArgs e) in
[code]...
I have the following Repeater, I need to bind multiple querystring parameter in HREF
<li class="current">
<a href="house.aspx?H_name=all"></a>
<ul>
<asp:Repeater ID="rptMenu" runat="server">
<ItemTemplate>
[code]...
here my code-
<asp:TemplateField HeaderText="HIGH RISK (10-12)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:Label ID="lblHighrisk" runat="server" Text='<%# Eval("URANGE").ToString().Split('-')[0] %>' />
</ItemTemplate>
</asp:TemplateField>
but that is giving compile time error 'Server tag is not well formed'
I am writing to excel file using jet driver. If the length of value exceeds 255 characters i get the below error.'The field is too small to accept the amount of data you attempted to add. Try inserting or pasting less data'Please could you provide a solution to how can i add values with length greater than 255. Excel file is 97-2003 format.
System.Data.OleDb.OleDbCommand command = new System.Data.OleDb.OleDbCommand();
I have a Formview where user is selecting the date and time via dropdown values. I am trying to set the value of the field when the record is being inserted for some reason my database still displays a null value.
Protected Sub FormView1_ItemInserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewInsertEventArgs) Handles FormView1.ItemInserting
CType(FormView1.FindControl("txtActivityDateTime"), TextBox).Text = CType(FormView1.FindControl("ddlMonth"), DropDownList).SelectedValue + "/" + CType(FormView1.FindControl("ddlDay"), DropDownList).SelectedValue + "/" + CType(FormView1.FindControl("ddlYear"), DropDownList).SelectedValue + " " + CType(FormView1.FindControl("ddlHour"), DropDownList).SelectedValue + ":" + CType(FormView1.FindControl("ddlMinute"), DropDownList).SelectedValue + " " + CType(FormView1.FindControl("ddlAMPM"), DropDownList).SelectedValue
End Sub
I have an integer field in my sql database and I have an xsd set up with all the CRUD operations. I need to put the value in a variable into the this integer field. Sometimes the value is 'nothing'. I have option strict on so there's no conversions going on by itself. If I hard code 'nothing' into the insert query, it works fine. Here's what happens otherwise:
1) If I put a variable into the query, when I assign 'nothing' to the variable, it becomes 0 so it puts a 0 into my database.
2) If I use an iif( ) statement, it also converts 'nothing' to 0
I don't seem to have any way to get a nothing in there if I don't specifically write 'nothing'.
I want to bind two column on single level in GridView
I m using this code
<asp:Label ID="Label1" runat="server" Text='<%# Eval("lChannelName")+ " " +Eval("lTransformData") %>' >
</asp:Label>
But i want to bind First column at Left hand side and second column from right hand side