I have 3 drop downs in a details view (populated from a gridview) during insert mode.
Dropdown 1
Dropdown 2 --> Based on drop down one
Dropdown 3 --> Based on drop down two
I am curious of how to handle the autopostback to update 2 and 3 since they are part of the detailsview, there isn't a selected_index_changed event.
I am ok with adding items to them on page load, just not for cascading of them...
in 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]....
I want to add a drop down list so that on update a user has to select something from a list rather then free text
ive googled and come across loads of info on this but i cant get anything to work
this is my aspx code so far, its the Description column i want to set as a drop down list
[code]....
'm using a textbox to get the first 5 letters of the name.
An sqldatasource then finds the people who have names > than the five letters and picks up their ID numbers as well as their names.
After that I use a second sqldatasource to get one individual from that dropdownlist's persons name and id number and then using a detailsview I display that person.
Well both sqldatasouces work fine but it just does not pass the ID number when I debug it.
I have a dropdown list within a details view that allows me to set 1 or many categories to a perticular record(in this case a photo). The select command in this case only displays those catetegories that are not already attached to the selected photo.
all works well and as you select a category and add it to the database the category is removed from the dropdown list and is added to a gridview which shows all categories that photo is stored with.
My Problem is that when i delete the category from the gridview the dropdown list does not delete with said deleted item unless i do a "click in URL bar and press enter" to totally refresh the page.....
how to refresh the dropdown list in the details view after the gridview item has been deleted?
[code]....
i am creating gridview with dynamic template, and the grid is disappear while postback. my code is below.
i am using GridViewTemplate class to generate Templates
Public Class GridViewTemplate
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 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 have an aspx page for Search Options. There are three aspx Dropdown List Controls that are each bound to seperate data sources. The selection made in the Dropdown control is used in a SQL Query within a GridView data source to display the results list.
When I select an item from the drop down list I get the search result, but I want the drop down list to return to it's initial state after it displays the result, so the next selection made will clear the results list from the first selection. I have tried a number of different approaches, but no success. Seems like this should be easy, but I'm new to coding.
I have found a couple of possibles on the forum, but they didn't work. Not sure if you can make any sense of this, but I'll try to give you something more to go on. All I really want to do is reset the dropdown after it displays the results of the search, which I assume is after a PostBack. Here is what I have tried in the Code Behind or Script.
This for just one of the Dropdown Lists, ID=Practices. I have been trying to make this work for way too long. Also, I have tried it with AutoPostBack set to true but same problem. Currently have a 'Submit" button on the page to initiate the search.
[code]....
In my project I used a dropdown list which databind as follows:
My drop downlist code as follows:
[code]....
* My proble is when I Change the Index Selection My dropdownlist automatically post back and it loses its Selected Index and move to Index=0
* When I press any server control e.g. button it also behave as previous.
my code as below:
1) I have set EnableViewState = True
<%@ Page Language="VB" MasterPageFile="~/en/en.master" AutoEventWireup="false" CodeFile="product_detail.aspx.vb" Inherits="en_product_detail" EnableViewState="true" %>
2) I have set AutoPostBack & EnableViewState = True
<asp:DropDownList ID="ddl_order" runat="server" AutoPostBack="true" EnableViewState="true">
</asp:DropDownList>
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 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 a website installed on one of our sales guys laptops and am having issues with the website hanging if left for 2 minutes. This doesn't happen on my dev box, my live machine or the other sales guys machine.
The website will hang. It's not just limited to this page, it will happen on all pages when I leave it for more than 2 minutes and then try and process a page that calls back via button or drop down ect. I have checked the IIS settings of the machine and everything seems the same as the other sales guys machine who is running the same version of the site.
Here are the specs:
Dev Box: asp.net 2, windows server 2008 64bit
Live Box: asp.net 2, windows server 2008 64bit
Working Sales Guy: asp.net2 windows 7 64bit
Broken Sales Guy: asp.net 2 Windows vista 32 bit (the only thing I can see different is windows version)
EDIT: For more information, if I stop the website from trying to load while it hangs, clear my history for the last hour and then refresh, the page comes back fine.
EDIT2: I have just spat out some debug information and it seems it doesn't even go into the post back I need.
EDIT3: This doesn't seem to happen when using Chrome but does when using IE and Mozilla.
I add cascading drop down in a place holder during page load. When i submit the entire form, i found out that my drop down list is reload and my selected value is not selected.
View 3 Repliesi have a place order form and i have a drop down list that contains list of items whenever i add item (for example item1) to place order and click add another item button, i need to remove (item1 ) from drop down list to avoid dupplicate insert in sql table or mayb need to fill the drop down but without (item1) cause i already selected it i am using sql datasource to fill the drop down list of items.
View 13 RepliesI have four textbox and a button in my page. After filling the textbox. When the user click save button. A loading image should be displayed. User should not feel that the page is postback to the server,Some thing like in facebook loading image.
View 5 RepliesI have a page where in there are various entry fields like name, registration number, country, state etc whcih are mandatory. On selection of country in dropdown,the state dropdown is filled and in the phone number boxes the country code is also filled simultaneously.
When I click on Save button it shows the required fields respective messages in the validation summary. When I select the country the state and country code are filled and the validation summary vanishes though I have not entered text in the other mandatory fields. None of the required fields messages are displayed though all fields except Country state and country code are filled.
<asp:DataList
id="dlstImagesDe"
DataSourceID="srcImagesDe"
[code]...
Being new to ASP.NET I have run into trouble building my own Whack-a-mole program. I think my problem comes from using Buttons, which by themselves send post backs to the server, making the software unusable. The looks are in place, making new buttons show up in the grid, in different places by random. However, when a button is pushed - the score doesn't change (which I feel is strange).
Not so strange is that the Button doesn't work since it sends post back to the server - reloading the UpdatePanel. I think I should use a different controller like the CheckBox and style it hard using CSS (which isn't a problem). Is this the correct way to go, or should I make use of JavaScript AJAX instead?
Note to self: This technique shouldn't be used in a public application since it put too much unwanted pressure on the web server.
[code]...
I have a gridview inside update pannel and i enabled sorting for the grid if i click to sort a column it does postback and then the grid doesn't show in anather way i have item template column inside of the grid and i am using a button to call a function ,if i click on this button it do the function but the grid doesn t show after the post back
View 4 RepliesI have three identical procedures that are all used to open the contents of a GridView into Excel. One was working fine but the other two were getting a 'RegisterForEventValidation can only be called during Render();' error when attempting to run the form.RenderControl(html) command. The only difference I saw was that the one that was working had the allowsorting value set to 'False' where the other two were set to 'True'. I set the other two to false and they worked. So what is going on here? Why would this cause the error; is the GridView somehow doing a post back and loosing settings when this value is set?
View 3 Repliesdynamic grid view loses binding when post back occurs ?
I have a dynamic grid View with template fields and bound fields as columns
for the first page load all binding looks fine.values are populated in all columns
when I trigger an event such as selected index changed in Drop downlist present in the column header(inside template field ) the binding are lost and the event is never catched.
how to retain controls when post back occurs and how to resolve this problem ?
I have developed an asp.net application ... I have a textbox where user will enter is name ... I need to check if the name is already exist in the database table column when ever user enter their name with out post back . If user exist mean it should show a msg user already exist .....
View 6 Replies