C# - GridView Showing Double On Postback?
Aug 11, 2010
I have a gridview that is supposed to refresh using
gridView.DataSource = null;
gridView.DataBind();
before binding it to the updated datasource (which is a DataTable).and then
gridView.DataSource = newDataTable;
gridView.DataBind();
The problem is that it won't clear and from time to time I get a table on top of another table (the one on top is the updated one, the bottom one is the data before the 2nd DataBind).
View 1 Replies
Similar Messages:
Oct 13, 2010
I'm using linq to sql,everything seems to be working fine except one thing,I'm showing any mapped float fields from my db tables as "Double?" instead of "Double", and when binding to a datagrid, any of those "Double?"fields don't show.If I iterate through the items and spit out the property,the float value is indeed there and properly returned.
View 3 Replies
Nov 1, 2010
I am trying to create a form that displays a dropdown and a password. The dropdown will act as the login for the password. If the password is correct the dropdown should be the variable for a gridview that should be visible? Can someone look at my code and see where I may be going wrong or any hints?
ASP Code
[Code]....
c#
[Code]....
View 2 Replies
Jun 10, 2010
I have a DropDownList on my webpage using an Access Database to fill it. However in my database record there a multible values with the same name.
My situation now:
MyDropDownList1
-ValueBaarlo
-ValueBaarlo
-ValueVenlo
-ValueMaasbree
-ValueMaasbree
-ValueMaasbree
-ValueMaasbree
What I want:
MyDropDownList1
-ValueBaarlo
-ValueVenlo
-ValueMaasbree
I only want to show every value (name) just once!
View 4 Replies
Feb 16, 2011
I implemented the AsyncFileUpload control on a web page. This web page requires uploaded files to appear in a gridview. The gridview contains the following columns: "File Name", "Confidential" Check Box, and a "Remove" button to remove the uploaded file. Since the AsyncFileUpload postback does not do a full page postback, I need to "force" a postback on the OnClientUploadComplete event of the AsyncFileUpload control in order to render the gridview after uploading a file. In the OnClientUploadCompleteevent, I use javascript to call __doPostBack. In this postback, I only bind my gridview and display the file information (I don't re-save the file).The problem: On the AsyncFileUpload's first "partial" postback, the file is successfully uploaded, as expected. On the second postback that I force with __doPostBack, the file is re-uploaded. You can verify this by using Google Chrome, which displays the upload progress. The behaviour is as follows: After selecting the file, the progress increments from 0% to 100% and the file is uploaded. After this, the __doPostBack executes, and you can see the upload progress increment again from 0% to 100%.ow can I make sure the Gridview is properly populated, but that the file is not uploaded twice?I attached a sample solution which contains the issue:https://www.yousendit.com/download/MzZFc2ZBNDRrYUN4dnc9PQ
View 1 Replies
Oct 17, 2010
I am using a toggle button and when a button is clicked, the CSSclass is changed by checkign whether it is a 1 or 0. if it is a 1(on) , it will be set to 0, if it is a 0, it will be set to a 1.
Only 1 postback occurs on each click , and thats how a button is toggled on or off. In Internet explorer, this is working great. However, in FireFox and in Google Chrome, something odd is happening! When I click teh buttons, it is causing a double-postback.
This double-postback cancels out the first postback which was to turn on the button.
View 2 Replies
Feb 7, 2011
i am using an updatepanel and loading diffrent user controls(.'ascx') in to it by the server side.
in every user control i have diffrent controls, max 4 controls in one user control.
no matter what control i am using when ever i cause an event from any control on the user control
the page postback twice and the item/option/text ichoose or checked or wrote in the control disappers, and the control
that caused the event returns the his original position like no change was made to it.
does anybody have any ideas or have a suggestion what causes thes double postback.
View 3 Replies
May 14, 2010
I was able to get a user control to use a method on the parent page. The problem is, the delegate causes the page to do two postbacks. Is there a way to fix this?
View 2 Replies
Mar 9, 2010
I am trying to achieve something similar to this:
[URL]
He has a drop down list and a textbox in the header of a GridView. I am able to do this if i create a new column and put the controls in the Header Template.
However I would like my column to span across the entire GridView.Columns.Count instead of having an unsightly single column.
View 5 Replies
Sep 20, 2015
i want to try the event of my button, instead of using a button i want to use double click Row of Gridview
This my event in button:
Protected Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
gridtolabel()
Session.Add("EquipCode", EquipCode)
Session.Add("ContractID", ContractID)
Response.Redirect("Edit.aspx")
End Sub
View 1 Replies
May 7, 2015
I want to determine Sigle click and Double click on any particular row (anywhere in the row) using javascript.Let's say I have some records in griview and when I click on any row it display the data of that row, and when I double click on any row it display the data of that row with "Hello" word.
View 1 Replies
May 7, 2015
In my database, there is a column "summary" with single quot in it.I am fetching this data inside Gridview. Data is shown inside Gridview as:
<summary>"
I want single quot to be shown inside Gridview as (')for that I tried to change the code as below:
<asp:GridView ID="GridView1" runat="server" Width="100%" BackColor="White" DataKeyNames="IssueId"
AutoGenerateColumns="False" AllowPaging="True" PageSize="8" CssClass="Grid" OnRowDataBound="GridView1_RowDataBound">
[code]....
View 1 Replies
Jul 24, 2010
Anyone with similar conclusion? GridView does not databind/refresh upon postback unless the postback is called by itself?
View 1 Replies
Mar 22, 2010
I'm using PopupControlExtender in a GridView, which pops up various dropdowns, treeviews, calendars etc. depending on which cell is clicked. I'm populating the dropdowns on the OnPreRender event. The result is, GridView is becoming extremely slow. I've tried removing Calendar controls, the Grid is still very slow. My guess is the enormously large source view of the page, resulting from populating controls on PreRender. Here is a sample ItemTemplate:
[Code]....
My goal is to populate the controls inside popup panel only when that panel becomes visible. I tried using OnResolveControlID event for this in PopupControlExtender. But strangely enough, that event fires only when control is NOT found, contrary to what its name suggests.
Anyway, my goal is to populate the popup panels controls (mainly ListControls) ONLY when their container panel becomes visible - hoping that this will make the grid faster. The same grid works perfect with AutoGenerateColumns=true and no populating of ListControls (not an option). Also, I'm NOT using debug option in web.config.
View 4 Replies
Jan 5, 2010
I have grid view with three column name, rate, category
I am also using ajax rate here and one dropdown within edittemplate which binded with sqldatasource.
But when click on edit it is not showing the drop down.
[code]......
View 2 Replies
Jun 23, 2010
i have two tables tblProduct and tblCategory, what i am trying to do is populate a gridview, i have LinqDataSource binded to the grid and the correct association made inside the .dbml (tblProduct.CategoryID to tblCategory.ID).
To show the fields from tblCategory instead of the tblProduct.CategoryID in the GridView i am using :
<ItemTemplate>
<asp:Label ID="Label5" runat="server" Text='<%# Eval("tblCategory.Name") %>'>
</asp:Label>
</ItemTemplate>
This works fine inside the VS2008 debugger, but once its published to the server (2003 + IIS6.0) the column that belong to tblCategory simply don't show, instead of having the category name (tblCategory.Name) displayed like it does inside the debugger it is blank, no errors simply wont show.
View 3 Replies
Apr 4, 2011
The gridview is not displaying when the page load even though I have bind the gridview with the datasource.... below is the code..
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DSF_View_ChangeRequest.aspx.cs" Inherits="DSF_View_ChangeRequest" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[code]...
View 1 Replies
Jan 5, 2010
I have a GridView with an EditItemTemplate, to which I am binding a Dictionary
<asp:GridView runat="server" ID="VariableList" ShowHeader="false" AutoGenerateColumns="false" OnRowEditing="VariableList_RowEditing">
<Columns>
<asp:BoundField ReadOnly="true" DataField="Key" />
<asp:TemplateField ItemStyle-Width="300">
[Code].....
If I set a breakpoint on the grid.EditIndex = e.NewEditIndex; line, it is setting the value to 0 which is the first item which is correct.
However, the asp:TextBox is not displaying. It is showing what is in the ItemTemplate and not in the EditItemTemplate.
However, if I click on Edit button again, it then displays the TextBox.
View 1 Replies
Mar 24, 2011
I have a GV in my webpage which is showing 10 items. Which means my page is horizontally BIG.How can align my GV to fit into my page OR How can I make my GV Vertical in size.
View 1 Replies
Apr 8, 2012
I have used your code to generate a Pdf from gridview control, but header of the gridview table is not showing in pdf & formatting or background color is not supporting...
View 1 Replies
Mar 21, 2010
I'm trying to show images that come from a sql query into a GridView column, the problem is that the best solution found in the web searches the database twice for each row.
This solution says that we have to first create a handler (ImageHandler.ashx),
It will receive the ID of the row that contains the image, and then query the database with that ID.
Then it will finally perform something like "context.Response.BinaryWrite((byte[])dReader["Photo"]);" (in this case the handler uses a DataReader, I guess we could use another approach)
We also have to declare the image column in the markup as:
<asp:TemplateField HeaderText="Image">
<ItemTemplate>
<asp:Image ID="Image1" runat="server" ImageUrl='<%# "ImageHandler.ashx?ID=" + Eval("ID")%>' />
</ItemTemplate>
</asp:TemplateField>
The problem is that, the Grid is bound to a SqlDataSource with a SelectCommand like: "Select ID, Name, Photo FROM Employees", that is already querying the database, then the GridView will execute the handler with the ID in it's query string, so the handler will query the database again for the same row, to extract the image.
Isn't there a way to send the image to the handler, so that it only performs the instruction "context.Response.BinaryWrite..." without having to query the database again?
View 7 Replies
Jan 29, 2010
I have two GridViews, the first works fine as I defined the datasource when I dropped it onto the asp page via visual studio and I specified the table to use.
The other GridView (dgvParams below) has just been dropped onto the asp page and I want to use it at run time:
[Code]....
When I step through the code I can see row and column counts are as expected and call "dgvParams.DataSource = table".
I think I am missing another step somewhere so that I can physically see the data on the GridView?
View 3 Replies
Oct 13, 2010
i have one Gridview in my .aspx page.i am showing dynamic data in this grid.how i will show the float or double number in 2 decimal places in gridview.
View 3 Replies
Feb 27, 2011
I have gridview and will show data like this :
|Year | Course Code | Teacher |
|2011| 001 | T01 |
|2011|002 | T02 |
How I can show name of course and teacher name? I'm using sqldatasource to bind gridview
View 8 Replies
Feb 11, 2010
I FORGOT TO ADD A DATASOURCE TO THE GRIDVIEW. GRIDVIEW NOW SHOWS. ****When I run my web page my gridview is not showing up. Don't know why. The page is nothing more than an image at top followed by a gridview below.
[Code]....
View 2 Replies
