I have a gridview which is ShowSelectButton = "False"
I use
e.Row.Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(sender, "Select$" & e.Row.RowIndex.ToString))
to select a gridviewrow but it causes a postback whenever I select a row. Is there a way to allow selecting a gridview row which will not cause a postback??
I have 2 dropdownlist controls (ddl1 and ddl2). When I pick an item from ddl1, it will update ddl2. The problem is when I pick an item in ddl2, it always selects the first item in the list. Is it that the ddl2 autopostback causes the first ddl1 to reload and results the ddl2 to be refreshed also? Or I didn't set something correctly?
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I have gridview. some columns are data, and some are link buttons. now, I need move these link buttons to a hovermenu. this is done. but I got a javascript exception, and it is because if there is no row was selected in gridview, it will pop this.
so, the question is: how can I select a row in gridview without select command? simply by code?
I am having to create a GridView 100% in C# CodeBehind. I have it selecting a row and posting back using this code:
void dataGrid_ItemCreated(object sender, DataGridItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem ||
e.Item.ItemType == ListItemType.Item)
{
e.Item.Attributes.Add("onmouseover",
"this.style.backgroundColor='beige';this.style.cursor='pointer'");
e.Item.Attributes.Add("onmouseout",
"this.style.backgroundColor='#FFFFFF';");
e.Item.Attributes.Add("onclick", "javascript:__doPostBack" +
"('_ctl0$DataGrid1$_ctl" +
((Convert.ToInt32(e.Item.ItemIndex.ToString())) + 2) +
"$_ctl0','')");
}
}
This does post back but then how do I get the ID of the row the user clicked on?
select from gridview, view in another gridview
View 7 RepliesI'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
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I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
I have a gridview with a checkbox in each row for selecting. I want to have a button which will select all/deselect all and not post back.
I first implemented this with a link and it works perfectly, but I don't like how it looks.
Code:
<a href="#" onclick="javascript:sel();">Select/deselect all</a>
Code:
<script type="text/javascript">
isSelected = false;
function sel() {
var frm = document.forms[0];
isSelected = !isSelected;
[Code] ....
So now I have a button that I want to rig up to execute this javascript. Which I believe would be done this way:
Code:
<asp:Button ID="btnSelectAllSummary" runat="server" Text="Select All" OnClientClick="javascript:sel()" />
But it is posting back. How do I prevent the postback and have it execute on the client?
I want to make a gridview. Its row when selected should direct me to a specific .aspx page.Each row should direct to a different page. Should I use querystrings for this?
View 3 RepliesI have a gridview that has a sqldatasource for it's data and it works well. I also have four dropdown lists that I need to have filter the data in the grid if they have a value selected. Here's my query:
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What I need is if a user selects an Asset_Tag from a dropdown list the gridview should requery with the Asset_Tag as a parameter so only that record gets called up. Is there a way to do this in the selected indexchanged event? The same would hold true for the other DDLs. It seems like if I assigne the datasourse programmatically I lose the builtin sorting ability which isn't acceptible for this application.
I have a gridview which on the left hand column it will be the Select button, but I think when we did this in Gridview, it will select mulitple button (it's like a checklist). I have made some changes, but I still cannot get the button to select only 1 row instead of multiple.
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I have a buttonfield button on my gridview, when I click of the buttons on one of the rows, from colunm[0] row[0] I need to display that contents in a textbox on another div and panel. How do I do that?
View 3 RepliesI want to give my users the ability to select a row by clicking anywhere on the GridView.
So based on the selected Row i will change one particular column value based on my validation.
How can i add the click event on the GridView?
i have chkactive(checkbox) and chkselect (checkbox) in two templetefields in gridview.I want to select only one checkbox on chksleect , it should not effect the chkactive .
View 2 RepliesI have a gridview with my inventory showing. Is it possible to add a checkbox to the gridview and when the user selects that row or multiple rows, this information can go to an order webpage. I'm a bit of a newbie so any examples in VB you can offer would be great. Seems simple I just don't know the process
View 16 RepliesThis might sound kind of dump but i know there is a way out. I have a select button on my gridview which uses a selectcommand. Now i need to grab the result of my selectcommand and if its "Less than 1" then post another grid. I have an idea but i just dont know how to write it.
Here is what i have so far but i think its not working because the select button is attached to the gridview. i am writing this when i double_click my sqldatasource
Protected
Sub relationshipmerge1_Status(ByVal
sender As
Object,
ByVal e
As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs)
[Code]....
I would like to select one of the rows of a gridview by default, when the gridview is first created (on databound?).
I know the SelectedValue that I want to select. How can I select that row, i.e. set it as Selected and show it with the SelectedRowStyle, etc.
I see that GridView1.SelectedValue is read only.
I have a problem. How to select a GridView row from code behind and get events fired?
View 3 RepliesHow can I programatically call a gridview row when it is loaded based on the primary key. For example, say I have a record in the gridview where the column name is ID (Identity Field) and has the number 37 in it. When the gridview loads up, I need to get the rowindex where the primary key = 37 and have that row automatically selected.
View 5 RepliesI have walked through other posts with a similar problem but I am very stuck.I am normally use Php/MySQL and am new to ASP (actually only this new client uses it and I'm trying to help them). I am trying to filter a table to only show the last 90 days of records. I found what I thought was the easy solution shown below:
FilterExpression="columnname < GETDATE() - 90"
Or, if you can modify your SQL SELECT statement
SELECT col1, col2, col3 FROM tablename WHERE col3 < GETDATE() -90
However when I added it I get this error:Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Type 'System.Web.UI.WebControls.BoundField' does not have a public property named 'FilterExpression'.I think I have added the code to the wrong place or have another file to edit but I have no clue honestly. The best I can do is show you the file I have the code to in hopes someone may know what this is. Here is the code from the file I added the solution to (my edit is bold/italics/underlined towards the bottom): And shouldn't I have some select statements somewhere like I normally do with MySQL?
<%@ Page Language="C#" MasterPageFile="~/SecureRck.master" AutoEventWireup="true"
Codebehind="Default.aspx.cs" Inherits="SecureRckWeb.Reps.Default" Title="Reps" %>
<%@ Register Assembly="schedule2" Namespace="rw" TagPrefix="cc1" %>
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I thought this was easy but found the properties of GridView.SelectedPersistedDataKey are essentially read-only. I tried to create a new Datakey to no avail. Could anyone to pass a pointer to an example of how to set GridView.SelectedPersistedDataKey?
View 11 RepliesI want to automatically select the first row of Gridview after an autopostback. Here is the scenario. I have a dropdownlist that populates Gridview. On Gridview I have the option to select a record to view more information. However, after the user selects an option from the dropdownlist I want the first record in Gridview to be selected and shown in Detailsview.
I'm using Visual Studio 2010, C#.
How to select a row in editable gridview, if we write like
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its selecting the row in gridview but it unable to select dropdown and image in gridview after selecting a row in gridview
My requirement is selecting a row in gridview and when the user selects a row in gridview, it has to perform postback to show the data in other controls related to this gridview row and able to select dropdownlist and imagebuttons in gridview.
Note: I have used checkbox in gridview to select rows and delete selected rows, but i want postback has to be happen show the data of gridview rows in other controls.
I need a Radio Button Select for my gridview which is manually datasourced (manual data set)
I copied this post but converted to vb.net [URL] However, its not working...so I'm not sure if its because I'm missing the conversion of some of the C# to vb.net or if I missing something else.
Heres my code.
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I have an accessdatasource with multiple columns, one column I use it to populate a dropdownlist. Can I use the data from other columns to insert into a table, insert being done in the aspx.vb page, without creating gridview etc.
Is it possible to make a detailsview one column visible= false and still be able to evaluate its contents?
Protected
Sub CompanyGridView_SelectedIndexChanged(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
[code]...