How To Bind/eval A Field Only For Inserting/writing

Aug 27, 2010

I 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?

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i have one hidden field and i want to bind it with two values of my data base separated by an coma. some thing like
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I have the code below that works fine, but I need to have more than one field using the same command.

[Code]....

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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:

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I'm trying to format the following:

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[code]...

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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I was using

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Databinding Methods Such As Eval()/ XPath() And Bind() Can Only Be Used In The Context Of A Databound Control

Apr 3, 2010

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) %>
<% { %>
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Feb 11, 2010

I have a label in a gridview where the text is set to <%Bind("lname")%> . I want to make it say thiis <%Bind("lname" &#43; "fname")%>. I've been having a hard time making .net do this. I also want to add a "," or some other unrelated caracter?

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Statement Within Formview / Error Databinding Methods Such As Eval(), XPath() And Bind()?

Jan 22, 2010

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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?

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Dec 8, 2010

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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]....

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Error - Databinding Methods Such As Eval(), XPath(), And Bind() Can Only Be Used In The Context Of A Databound Control

Aug 11, 2010

[code]....

gives me error: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.

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Forms Data Controls :: Eval(), XPath(), And Bind() Can Only Be Used In The Context Of A Databound Control?

Mar 9, 2010

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]...

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[code]...

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Mar 11, 2011

here my code-

<asp:TemplateField HeaderText="HIGH RISK (10-12)" ItemStyle-HorizontalAlign="Center">
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but that is giving compile time error 'Server tag is not well formed'

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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();

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Sep 12, 2010

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
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Inserting 'Nothing' Into Integer Field Through Xsd?

Nov 23, 2010

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'.

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Jan 12, 2011

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

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