Asp.net - Get Databind Value Of Selected Template Field?
Apr 14, 2012
I would like my website to allow users to download files which are stored as blobs on the database, the database holds fileID fileName and theFile. I have a grid view with two columns, fileName and a template column, which is databound to fileID and has a linkbutton. When the link is clicked it calls to a function which downloads the file. The function needs the fileID to download the file, how do I get the fileID bound to the selected linkbutton.
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Oct 31, 2007
I have a DataGridView that is inside a TabControl. After I bind the DataGridView with data, the first row is selected. How do I prevent this from happening. I tried DataGridView.ClearSelection and DataGridView.Rows(0).Selected = false. Neither of these options work. I think it has something to do with the tab control not being completely drawn before I call the methods. If I run this code from a button it works.
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Mar 1, 2012
In the RowDataBound event of an ASP.NET Gridview I am trying to read the value of a Label in a Template Field. I would prefer to capture this value in the RowUpdating Event, but for some reason I seem to recall that it is not possible. Here is the ASP...
<asp:TemplateField HeaderText="Translation" ItemStyle-Width="250" >
<ItemTemplate>
<asp:Label ID="Label11" runat="server" Text='<%# Bind("lang_String") %>' Width="250px"></asp:Label>
</ItemTemplate>
Here is the VB.net code that I am trying to figure out....
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If (e.Row.RowState And DataControlRowState.Edit) > 0 Then
[code]....
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Dec 30, 2010
I have an admin page where a user will select a document path and add that path to a certain column of a database. I am using a fileupload on the page where they can find the document and copy the path and then paste it into the details view. However, I want to skip this step and I want them to select a document and automatically make the path show up in the details view.
<asp:FileUpload ID="FileUpload1" runat="server" Visible="False" Width="384px" /><br />
<br />
[Code].....
I need to get the fileupload1 into the DOC contenttemplate area so instead of showing an empty textbox it will show just a textbox it will show the fileupload
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Nov 22, 2011
I need to create a page that will display gridview based on user wants (programmatic ally).Basically I have a list of columns then the user will choose for the list. I need also to have sorting function
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Feb 17, 2011
I have a linkbutton inside datalist1 item template field, i want when user click on linkbutton then its text would be "enable" and if the linkbutton text is "enable" and panel1 will be visible then again on linkbutton click event linkbutton text would be "disable"and panel1 will be hidden...
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Sep 24, 2009
Is there a way to access the field header name of a databound repeater within the header template. So insted of this....
<HeaderTemplate>
<table >
<th ></th>
<th >Forename</th>
[code]....
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Aug 20, 2011
In VB.NET,I want to create template at runtime and save it the template with name. for ex : Administrator design a page with 5 fields like using firstname, lastname, dob,nationality and job. He want to assign this page to the user with some restriction like user1 need to enter the all the fields and save it the forms as user1profile, but user2 need to enter only firstname and lastname and save it as user2profile.(in features, he can remove the fields from the form).
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Feb 9, 2012
I have Listbox, that I want to assign primary key, and a text (eg. students table). So i wrote this code.
mySQLCmd.CommandText = "SELECT studentname, studentid FROM studentstable WHERE Year(DOB) = " + selectedYear
Dim dt As New DataTable
myReader = myCmd.ExecuteReader()
[code]....
When I select something on the listbox, both of selecteditem and selectedvalue properties just return the student name, not the student id. So I get this error.
Error on Line2. Conversion from string "RichardCole" to type 'Integer' is not valid.I don't know why? So i do i get the studentid value back ? I need to know the ID coz name can't use as PK so.
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Aug 23, 2002
I have a Datagrid that is from a table.When I highlight the row, and click my select button, how do I know what the value of a certain column is?
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Aug 4, 2010
I'm working on my first T4 code generation tool to add some Stored Procedure helper code to my project. I've created custom types (e.g. StoredProcedure and StoredProcedureParameter to help with my code generation and have included the assembly and namespace references in my code:
<#@ template debug="false" hostspecific="false" language="VB" #>
<#@ output extension=".generated.vb" #>
<#@ assembly name="$(TargetPath)" #>
<#@ import namespace="StoredProcCodeGenerator" #>
This allows me to use my custom types in my T4 template code. However, because my custom types exist in the same project as the T4 template code, I can't recompile my project once I run the template code without restarting Visual Studio. This isn't very much fun.
I read a great article that addresses this exact issue by using the T4 Toolbox, but it's not working. Either I'm implementing the VolatileAssembly directive wrong or the T4 toolbox simply didn't get installed. I'm not sure that the toolbox got installed correctly (I'm using VS 2010 on Win XP).
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Feb 8, 2011
I'm looking for the easiest way to bind data from a SqlDataSource to textboxes dropped in Visual Studio 2008.For example, I have 4 textboxes currently that have Address, City, State, Zip.I also have a SqlDataSource on the page fetching the ID of the record and selecting those 4 fields based on ID. How am I able to quickly bind each box to those particular fields selected? I would think this would be really straight forward - but seems it's not. Seems like the answer is funneled towards having to create a GridView or some type of control.
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Oct 5, 2007
I have three required field validator ,in that 2nd validator should not fire even if I don't enter any any value in the textbox. I tried with Javascript. But couldnt do it.
<%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "[URL]">
<html xmlns="[URL]">
<head runat="server">
<title>Untitled Page</title>
<script language ="javascript" type ="text/javascript" >
function step2()
[Code] .....
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Apr 15, 2011
I have an Entity Data Model with two entities in it "Roles" and "Users". There is a navigation property from I have a EntityDataSource and a GridView. The EntityDataSource points to the Users entity and has an Include="Roles" parameter.I've added a BoundField in the GridView that points to RoleName, a property of the entity Roles. However, when I execute the code I get the above error.I have used very similar code successfully in another application. Any ideas why this isn't working?
Here is my EntityDataSource:
<asp:EntityDataSource ID="EntityDataSource1" runat="server"
ConnectionString="name=pbu_checklistEntities"
DefaultContainerName="pbu_checklistEntities" EnableDelete="True"
EnableFlattening="False" EnableUpdate="True" EntitySetName="Users" Include="Role">
</asp:EntityDataSource>
And here is the BoundField:
<asp:BoundField DataField="RoleName" HeaderText="Role" SortExpression="RoleName" />
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Jan 7, 2012
If there are fields in a combo box as i press the drop down arrow. and if i select a field... then it should not b deleted using a backspace or anyother key..
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May 23, 2011
I have a search form on that will be pulling search template queries from a table in the underlying (an Access db on a share). The search form has a calendar control for filtering by date range, a listbox containing the names of the search templates, a second listbox which lists the fields in the selected template, and then some controls which show/hide themselves depending on which field is selected so that the user can pick a field and enter it's unique criteria in the appropriate control for filtering. Below these controls is a DataGrid, which will obviously display the results.
The problem is how to dynamically "transform" this DataGrid to display the selected search template. These templates do not represent tables in the underlying; rather they represent preconstructed SQL queries (stored in a table) which are essentially SELECT queries with joins and no WHERE clause (so they are the results of multiple tables joined together by their keys).
To be honest, I'm having trouble even generating the LINQ queries to represent these template dynamically, but that's not as important, since I can manually translate the SQL queries into LINQ. This is definitely not the preferred method, as the whole point of putting these templates in a table, rather than code, was to allow for future additions without rebuilding/redistributing the application interface.
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Jul 6, 2010
This is my code which i used to try this but it inserts only the last value in the listbox but i need all the selected values seperated by comma [code]...
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Apr 13, 2009
I am creating a search function which searches a database for keywords in a selected field in FilmTable (name of table to be searched)
This is the SQL I am using:
CODE:
It is saying there is an error in the FROM syntax
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Jul 14, 2010
I'm trying to make the textbox field active when listbox selecteditems is change so I know I have to but something in the selecteditemchanged action of the listbox, but what?I tried:
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
TextBox1.Enabled = True
End Sub
But it didn't work..
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Aug 26, 2011
[Code]....
I know that if get datatable in gridview.datasource,ever write gridview.Databind.But I found coding of my friend. He write only get datatable in gridview.datasource but no write gridview.dataBind. Therefore, his coding is not error. Why? Don't need to dataBind?
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Feb 6, 2008
I'm new bie to VB.NET.I want some help on the following requrement.
Table: trade_data(tradesourceid,description)
Data:
trade_data(1,'Indian Bull')
trade_data(2,'Golden way')
trade_data(3,'Indian Trades')
[Code]...
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May 17, 2011
The Dropdownlist data binding using throw common function. In this have a problem in passing dropdownlist.
Error: Object cannot be set an instance of object The code is below
Aspx Page Code:
<asp:DropDownList ID="ddlagent1" CssClass="ParameterTextBox" runat="server" AutoPostBack="false"></asp:DropDownList>
Protected Sub chkcity_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles chkcity.CheckedChanged
[Code]...
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Mar 12, 2011
I'm running the following query:
' Show which halls they are eligible for.
Dim dbRooms As New pbu_housingEntities
Dim gender As String = Session("gender").ToString
[Code]....
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Apr 7, 2011
I have a dropdownlist in my repeater, the dropdownlist is databound by a datasource. Originally all the dropdownlist will have all the same item option. I try to do if one of the showing dropdownlist is selected one option, then in other dropdownlist this option will disapper.
here is the asp:
<asp:Repeater ID="UnitMatchRepeater" runat="server" DataSourceID="OldUnitsDataSource" >
<ItemTemplate>
<tr>
<td>
[code]....
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Jun 21, 2012
I have created a wpf vb.net project and am trying to set a simple databing. I'm not quiet sure how to set my DataContext = this; in the codebind. Currently when i run the program my Label never is updated. I have included my code below. [code]....
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Jul 26, 2011
I have a DataAccessLayer that returns a datatable. The business layer calling it also returns a type datatable.In my form, I call the business layer as a datasource of my gridview and then I binded it.
This codes are working in C# but I have problems when I converted it to VB.NET. During databind it displays the error: Data source is an invalid type. It must be either an IListSource, IEnumerable, or IDataSource.
Can i not bind a datatable in my gridview in vb.net? What do you think is the problem?
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Oct 16, 2010
After listing the data from data base to combo box, I would like bind the chosen data from combo box to textbox.
'bind from combo box to textbox
Dim ConString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\Car Rental Data\Mutiata Company Car Rental System1.mdb"
Try
'open connection
[Code] .....
I have try using this code to bind the data from combo box to textbox, but unsuccessful to display the data in textbox. Is there any code that I left behind?
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Nov 14, 2006
How can I databind from my xml file to my treeview?I didn't like my way of populating a tree view, coz of it doesn't go with my UI when I was creating an xml file then load it to the treeview...
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May 5, 2009
I have a datatable with verified 10 rows named dtable. I attempt to bind it to my gridview and nothing shows up on my asp.net page. Why do these relatively simple few lines not populate my gridview?
Dim con As SqlConnection = Nothing
Dim dTable As DataTable
Dim dataAdapter As SqlDataAdapter
Dim sqlcmd As String
[code]....
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Aug 18, 2010
I am trying to add an attribute to a dropdownlist control to store a value returned for the database. This value is need to get a code once a selection is made on the dropdownlist;
I have tried the following:
ddlStatus.DataTextField = dsValues.Tables(0).Columns("Description").ToString ()
ddlStatus.DataValueField = dsValues.Tables(0).Columns("CategoryCode").ToStrin g()
ddlStatus.Attributes.Add("SysCode", dsValues.Tables(0).Columns("SystemCode").ToString( ))
ddlStatus.DataBind()
but the attribute is not bound to the control
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