Forms Data Controls :: Details View With Dropdownlist Error When Binding?
May 4, 2010<asp:TemplateField HeaderText="Location">
View 1 Replies<asp:TemplateField HeaderText="Location">
View 1 Repliesbind Checkbox in Details view?
[Code]....
<EditItemTemplate>
I have a DetailsView that has a dropdownlist in side an EditTemplate. I need the dropdown list to have to options (Math and English) and wan tthe selected option to be whatever is already stored in the database. I can't seem to be able to get this set.
View 6 RepliesI have 2 dropdownlist in my detailsview that second dropdownlist get thier data based first dropdownlist selecet value;
following error arised:
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control
I solve it by this solution:
[Code]....
current problem:
when I want to insert new item ( detailsview insert mode), default value of my DropdownList sent to parmlist
I have a vb.net page that has a editable detailsview. When a user wants to erase the data for a field, they highlight the data, and delete/backspace over it, and click update. However, the original data is still saved. If they are replacing the current data with new data, that works fine and updates/saves correctly. This problem only happens when the current data needs to be removed.
View 6 RepliesI got a "Input string was not in the correct format" exception but can't see the problem. The exception had no information to show what was causing the error. It's thrown before the BLL or DAL are called so it must be in the mark up. The parameters are in the right order.[Code]....
View 7 RepliesI am having problem to do a 2 way binding with DropDownList inside DetailsView, my markup declaration is:
[Code]....
But I am getting the following error messages on the line ddlCategoryId.DataBind(): ArgumentOutOfRangeException: 'ddlCategoryId' has a SelectedValue which is invalid because it does not exist in the list of items.sometimes I get different error: InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.]
I have on a page a gridview that can be filtered with one text box. I set up the gridview to show select and wanted to then connect a details view so that when you selected a row the entire details would show up. When I run it I get this error. Data keys must be specified on GridView 'GridView1' before the selected data keys can be retrieved. Use the DataKeyNames property to specify data keys.
<%@ Page language="C#" masterpagefile="MainContent.master" title="Electrical Storage" EnableEventValidation="false" %>
<asp:Content id="Content1" runat="server" contentplaceholderid="Content">
<div id="Rightside">
<h2>Search Electrical Storage
</h2>
<li><a href="EStorageResultsAll.aspx">View All Files</a></li>
<li>Specify Projects to View</li>
<br />
<br />
<form>
Search: <asp:TextBox id="Search" runat="server"></asp:TextBox>
(% is wildcard)<br /><br />
<asp:Button runat="server" Text="Search" id="Button1"
PostBackUrl="electrical_storage.aspx" Height="26px" BackColor="#000066" ForeColor="White" Width="129px"></asp:Button>
<br />
<hr />
<asp:GridView id="GridView1" runat="server" AutoGenerateColumns="False" BackColor="#CCCCCC" BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2" DataSourceID="AccessDataSource1" ForeColor="Black" Width="820px" AllowSorting="True">
<RowStyle BackColor="White" />
<Columns>
<asp:commandfield ShowSelectButton="True">
</asp:commandfield>
<asp:boundfield DataField="CoID" HeaderText="Co ID" SortExpression="CoID">
</asp:boundfield>
<asp:boundfield DataField="ProjClass" HeaderText="Project Class" SortExpression="ProjClass">
</asp:boundfield>
<asp:boundfield DataField="Project" HeaderText="Project" SortExpression="Project">
</asp:boundfield>
<asp:boundfield DataField="FileName" HeaderText="File Name" SortExpression="FileName">
</asp:boundfield>
<asp:boundfield DataField="FileAddInfo" HeaderText="File Add Info" SortExpression="FileAddInfo" Visible="False">
</asp:boundfield>
<asp:boundfield DataField="FileNumber" HeaderText="File Number" SortExpression="FileNumber" Visible="False">
</asp:boundfield>
<asp:boundfield DataField="BoxNumber" HeaderText="Box Number" SortExpression="BoxNumber" Visible="False">
</asp:boundfield>
<asp:boundfield DataField="Location" HeaderText="Location" SortExpression="Location" Visible="False">
</asp:boundfield>
</Columns>
<FooterStyle BackColor="#CCCCCC" />
<PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
<SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#000066" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="\Elec1DATABASEStorageElectricalFilesBook.mdb" SelectCommand="SELECT [CoID], [ProjClass], [Project], [FileName], [FileAddInfo], [FileNumber], [BoxNumber], [Location] FROM [FilesWithLocation]
WHERE (([CoID] LIKE '%' + ? + '%') OR ([ProjClass] LIKE '%' + ? + '%') OR ([Project] LIKE '%' + ? + '%')OR ([FileName] LIKE '%' + ? + '%')OR ([FileAddInfo] LIKE '%' + ? + '%')OR ([BoxNumber] LIKE '%' + ? + '%'))">
<SelectParameters>
<asp:controlparameter ControlID="Search" Name="CoID" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="ProjClass" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="Project" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="FileName" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="FileAddInfo" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="FileNumber" PropertyName="Text" Type="String" />
<asp:controlparameter ControlID="Search" Name="BoxNumber" PropertyName="Text" Type="String" />
</SelectParameters>
</asp:AccessDataSource>
<asp:AccessDataSource id="AccessDataSource2" runat="server" DataFile="\Elec1DATABASEStorageElectricalFilesBook.mdb" SelectCommand="SELECT * FROM [FilesWithLocation] WHERE ([SearchString] = ?)">
<SelectParameters>
<asp:controlparameter ControlID="GridView1" Name="SearchString" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:AccessDataSource>
<asp:DetailsView id="DetailsView1" runat="server" AutoGenerateRows="False" DataSourceID="AccessDataSource2" Height="50px" Width="442px">
<Fields>
<asp:boundfield DataField="CoID" HeaderText="Company ID" SortExpression="CoID">
</asp:boundfield>
<asp:boundfield DataField="ProjClass" HeaderText="Project Class" SortExpression="ProjClass">
</asp:boundfield>
<asp:boundfield DataField="Project" HeaderText="Project" SortExpression="Project">
</asp:boundfield>
<asp:boundfield DataField="FileName" HeaderText="File Name" SortExpression="FileName">
</asp:boundfield>
<asp:boundfield DataField="FileAddInfo" HeaderText="File Additional Info" SortExpression="FileAddInfo">
</asp:boundfield>
<asp:boundfield DataField="PeriodBegin" DataFormatString="{0:d}" HeaderText="Period Begin" SortExpression="PeriodBegin">
</asp:boundfield>
<asp:boundfield DataField="PeriodEnd" DataFormatString="{0:d}" HeaderText="Period End" SortExpression="PeriodEnd">
</asp:boundfield>
<asp:boundfield DataField="FileType" HeaderText="File Type" SortExpression="FileType">
</asp:boundfield>
<asp:boundfield DataField="FileNumber" HeaderText="File Number" SortExpression="FileNumber">
</asp:boundfield>
<asp:boundfield DataField="BoxNumber" HeaderText="Box Number" SortExpression="BoxNumber">
</asp:boundfield>
<asp:boundfield DataField="SearchString" HeaderText="Search String" ReadOnly="True" SortExpression="SearchString">
</asp:boundfield>
<asp:boundfield DataField="Location" HeaderText="Location" SortExpression="Location">
</asp:boundfield>
</Fields>
</asp:DetailsView>
</form>
</div>
</asp:Content>
<asp:Content id="Content2" runat="server" contentplaceholderid="head">
<style type="text/css">
table {
width: 820px;
}
.gridview {
width: 820px;
position: fixed;
}
</style>
</asp:Content>
I have a details view that appears when record is selected in a GridView. Can this details view be opened in it's own modal window that would allow me to use the full event model?
View 3 RepliesI am using a dropdown list in gridview and populating it from database.However ,i am getting "object reference not set to an instance ..." error even though i have reference.I have two more similar drop down list and they are working perfectly.
I am uploading the options for the dropdownlist from a "tab delimited" text file for all the dropdown list.I am not getting where exactly the problem is.
<asp:TemplateField HeaderText="Property" HeaderStyle-Wrap="false">
<ItemTemplate>
<asp:Label ID="lblProperty" runat="server" Text='<%#Eval("Property")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblProperty" runat="server" Visible="false" Text='<%#Eval("Property") %>'></asp:Label>
<asp:DropDownList ID="ddlPropertyEdit" runat="server"></asp:DropDownList>
[code]...
I'm trying to get a record to show up in a details view as part of a Master Details. I was able to get this to work by setting the visibility to true for the Details View in the Page Load event. I now want the details view to show up when the Select button is clicked in the GridView's template field using the onClick event for the button. I don't seem to be assigning the correct properties to get this to work though. what property I should use with this? I know I have to get it from the GridView and assign it to the details but haven't gotten it to work. this is the GridView:
[Code]....
I am using Visual studio 2010 express and I have a details view databinded to an sql database table. When I use the Insert option on the view it causes an error due to it trying to insert a null into the primary key field. If the Insert function does not create a new primary key entry how is it created?
View 9 RepliesI have a gridview which display when person start n stop the project if same person do muliple projects it save n retrives eaisly i want to do that when i press select in gridview it give me the all about the person means if ali is working on 2 projects so it give me details like ali firsrt project is this time n date this , second project is this how can i do this ?
View 1 Repliesi have two tables in my database, product(productid as pk) and productdetails(productid as fk), in a relationship.i have dropdownlist which on pageload displays data from my product table, showing all product name. AutoPostBack enabled. Its working fine.i have a gridview which should display the productdetails data when i select a value from my dropdown list.i have written the code for the gridview on the selected_index_change event of the drop down list, please correct me this is wrong;here is the code;
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles
DropDownList1.SelectedIndexChanged
Dim ConString As String [code]...
so when i select the value in the dropdownlist i get this error .Must declare the scalar variable "@ProductID".
Currently,below is my code.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source= E\SQLEXPRESS;" + "Initial Catalog=k;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "select column_name from information_schema.columns where table_name='examtimetable' '" + dd_list + "'";....
I receive an error "Incorrect syntax near 'System.Web.UI.WebControls.DropDownList'."
I have on one page a grid view that has a a delete bit and create new form, these both work. when the user clicks the edit button/link the id for that field is thrown in the url to a new page with a details view on with its default mode to "Edit". I have a stored procedure to update the SQL dB which works when run in SQL. however when the values are chaged in the details view, I click the update button and it says that it has succesfully updated and throws no errors... It has not?
I think the problem is getting the new values out of the details view. which i have been doing like this...
TextBox _AddressContactName = (TextBox)DetailsView1.FindControl("AddressContactName");
string s_AddressContactName = _AddressContactName.Text;
This gives me what the value that it was before editing and the same as in the dB, this is why i'm getting a successful bool value for the stored procedure. My question is this... how do i get the values after its been changed in the details view?
I have 2 DetailsView controls- dvPerson, dvVehicle - that are bound to datasets at RUN TIME. When a person is selected in dvPerson, dvVehicle should filter to show vehicle info only for that person.
View 7 RepliesCan I customize details view to look differently. If so how?
View 3 Replies I have written in the old ASP for year and just started two weeks ago with .net, It has taken some adjustments. I am learning using Web Dev Express. Anyway, Here is my question.
I am learning by creating a simple progam to track boxes associated with cases(litigation) IE Smith v Smith case has files in 3 boxes.
two tables
[code]....
So question from a Newbie !So I have a web page with a Details View component for Inserting data into a table.One of the fields is a date/time which I want to be now().SO I guess there are 2 ways of doing it - either I populate the date/time field in the form with a variable that represent now() and make it Read Only so the user can't change it or I somehow make a hidden variable (ie not displayed in the form) that writes a date/time of now() into the database whenever an INSERT takes place.What is the best way and how do I do either of them ? How do I make one of the fields in the INSERT form of the Details View a preset variable ?
View 10 Repliesin one of the text fields I want to limit what the user can insert to a set of key words. So the obvious thing to do is to present the User with a drop down box to select a key word.
So I have converted the text field into a template and I thought I could replace the <InsertItemTemplate> in the details view with the drop down box.
Well it looks like what I want but when I INSERT the data that field is not inserted into the database.
So I guess I need to Bind the Drop Down somehow to the Insert - How do I do that ?
My code is below;
[Code]....
Am having a details view and grid view in a page. In details view I have one dropdown list with selected index changed.I have to take the values from database and bind it to the other fields in details view. I have Written the Query which is executing fine and fetching values(this one i have checked in SQLServer). But when i select any items in DDL, instead of binding it in DetailsView its getting binded to Grid view.
View 3 RepliesI have a method that retreives data from table and needs to display in details view. The method is give below: The problem I am facing is I did put some break points to figure out if all the lines are executed but the problem I am facing is that the compiler is not going in the while(reader.read()) loop(I have made to loop bold so that would be easy to locate) and hence unable to retreive data.
public static Workstation GetWorkstationByName(string workstationName)
{
Workstation computer = new Workstation();
string key = "workstation_workstation_" + workstationName;
if (workstationName == null)
return null;
if (SiteUtility.Cache[key] == null)
{
string con = SiteProvider.Instance.AltirisConnectionString;
List<Workstation> workstationlist = new List<Workstation>();
SqlConnection cn = new SqlConnection(con);
SqlCommand cmd = new SqlCommand("Select [Server] from vComputer where Name = '@workstationName';", cn);
cn.Open();
cmd.Parameters.Add("@workstationName", SqlDbType.VarChar).Value = workstationName;
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
Workstation ws = new Workstation();
ws.Server = reader["Server"] as string;
workstationlist.Add(ws);
}
string ADSPath = "LDAP://" + SiteProvider.Instance.DomainString;..............
i configured the datasource and and link it with the detailsview but when i run i cnt see the details view...this happen mostly when i changed default mode to edit of read-only..
View 2 RepliesI want to know how can I read DetailsView cell values, I tired the foolowing example but no success :
Label1.Text = DetailsView1.Rows[0].Cells[0].ToString();