Forms Data Controls :: Selected Value In Gridview Not Accessible Via SelectedIndex
Sep 2, 2010
I'm trying to keep these questions seperate for people searching after me, .
I have the following code on SelectedIndexChange of GridView1
[Code]....
I have a drop down list that you can choose values from, and depending on which item you pick GridView1 changes, this all works correctly, and if I select one of he rows the SelectedIndex changes. My problem occurs when you choose a different value from the drop down list, GridView1 Changes accordingly, and by default a record is selected. But selectedindexchange is never fired again until I manually select another record from the gridview which is a problem.
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Jul 31, 2010
I am unable to access the data in the gridview's selected row. I have done this lots of times but must be forgetting something.
Here is my gridview:
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Mar 1, 2011
I am having a problem with using A Gridview SectedIndex or value in a sql ControlParameter. When I select the row it does what I need it to except it shows that there is no data.
but if I add Default Value of 1 the data shows up, but it needs to read from the Gridview.
[Code]....
I even added sqlDataSource.DataBind() in the SelectedIndexChanged Event to see if that would fix it but - No! I used it with a DropDown and it worked only when I use AutoPostBack = true of course.
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Jan 10, 2011
I have a gridview, whose columns I am dynamically binding. There are two fixed columns, one is a button field and another is a template field containing an image. The other columns might vary in number and behaviour, so before binding the grid, I am removing all columns of the gridview except the button field and the template field. But after doing this, if i try to do a findcontrol for the template field(Image column), it is notgetting the control. Means while removing the other columns, this image control also getting removed.Below is my code:
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Now, after this i call the databind method. The problem is with the for loop, where I am removing the columns after the image column. And I am not able to find the control after that.In rowdatabound i am trying to find the control like this:
[Code]....
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Aug 4, 2010
I want to select a row in my GridView based on a known data key value at runtime.
In other words, I have a data key value, 2 for ex., and the primary key value of one of the rows in my GridView is 2. How can select that row? (Without having to go through each row to find which one matches my key, then setting the SelectedIndex.
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Mar 11, 2010
I have a gridview in one UpdatePanel and a FormView in another UpdatePanel.
The FormView UpdatePanel refresh is triggered when the GridView SelectedIndexChanged event fires. This then displays the FormView. However when a user navigates to another page in the GridView or sorts the data then the GridView is refreshed and the SelectedIndex
is changed to nothing in the code behind via the GridView DataBinding event.
The FormView UpdatePanel does not refresh to reflect this. I have to manually set the FormView datasource to null and update the FormView UpdatePanel in the code behind.
My question is why doesn't my FormView UpdatePanel update when the SelectedIndex of the GridView is altered in the code behind.
[Code]....
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Jan 8, 2010
how to update the text within a textbox inside the same cell of a DropDownExtender and ListBox while the option the user clicks on inside the ListBox
Here is a code snip of the template field
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Then I also have this on the RowDataBound event of the gridview
[Code]....
What I don't understand on how to do is tell which row the onclick event took place and in what column. Then I also need to figure out how to build the JS for the front end to handle this and update the proper rows / columns textbox
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Dec 27, 2010
I'm trying to populate a detailsview according to the selected row in a gridview. How do you choose what the selectedindex is? For example my sql statement is:
SELECT [Assignment_ID], [Staff_ID], [Client_ID], [Day], [Month], [Year], [Start_Time], [Job_Type], [Billable_Time], [Travel_Time], [KM_Travelled], [NC_Time], [SP_Time], [Billed], [Description] FROM [Assignment] WHERE ([Assignment_ID] = @Assignment_ID)
and @ assignment_ID is gridview.selectedindex
but when it runs I get the error:
Input string was not in a correct format.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.FormatException: Input string was not in a correct format.
Source Error:
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Stack Trace:
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Apr 12, 2010
I have been researching this issue for a couple of days and have found a lot written about it, but none of what I have found has fixed the problem I am having.
I work for a school system, and my principals are wanting to take a list of the staff members at their school and create staff lists for different activities they perform. I thought I would load the staff into Gridveiw1, and when they select a record have it move over into Gridview2 and "delete" from Gridview1.
I am loading my full staff into a datatable (SQL Server backend), and setting this datatable as my gridview1 datasource. At this point, it loads great, and cosmetically speaking sorts and pages fine. The problem occurs in the codebehind after a Sort or Page change has occurred -- when I select a record and move it over into Gridview2, it is moving the original record that was at that postion on Page 1 instead of the sorted or "new page" record.
So if the initial list comes in as:
Teacher 1
Teacher 2
Teacher 3
The sort button is hit so that the list now starts out like:
Teacher 7
Teacher 13
Teacher 5
If they select "Teacher 13" to be moved over after the sort, instead it is still moving over "Teacher 2" -- the initial teacher in that index before the sort.
The Gridview setup on my aspx page looks like this:
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My codebehind:
[Code]....
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Jun 25, 2013
I don't know how to access,...
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Dec 16, 2013
I am using a dropdownlist in my application and it has corresponding SelectedIndexChanged() event.I would like to invoke GridViewEdit Event when SelectedIndexChanged event fires from dropdown list.Is it possible to implement this...??
<asp:DropDownList ID="ddlStatus" Visible="true" AutoPostBack="true" OnSelectedIndexChanged="ddlStatus_SelectedIndexChanged" runat="server">
</asp:DropDownList>
protected void ddlStatus_SelectedIndexChanged(object sender, EventArgs e)
{
//Code to fire the GridViewEdit Event to put a row in edit mode
}
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Sep 27, 2012
Unable to generate dropdown event selectedIndexChange in GridView's Edit Template
protected void GridViewDepartment_RowUpdating(object sender, GridViewUpdateEventArgs e)
{ getConnection = connection.SetConnection();
GridView GridViewDepartment = (GridView)sender;
GridViewDepartment.EditIndex = e.RowIndex; // Update Index You Want to edit
GridViewDepartment.DataSource = departmentTable; // ReBind the GridView
[Code] .....
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Sep 30, 2010
I have two gridviews on same page - If a record is selected in Gridview1, I need to unselect a record (if one is selected) in Gridview2 - and vice-versa.
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May 7, 2015
I'm trying to load a gridview based on selection from dropdownlist. When i run the program, it displays empty gridview. How to solve this?
Name of dropdownlist: CatCode
Code behind:
Private Sub BindProdGrid()
Dim conString As String = ConfigurationManager.ConnectionStrings("SY_InventoryConnectionString").ConnectionString
Dim rowIndex As Integer = 0
Dim box11 As DropDownList = CType(SalesGView.Rows(rowIndex).Cells(1).FindControl("CatCode"), DropDownList)
[Code] ....
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Jan 18, 2011
Referring to a C#, .net, System.Web.UI.WebControls.Lisbox which has a multiple select option true and needs to do a postback every time selected index changes.
Problem is, the [SelectedIndex / SelectedItem / SelectedValue] is always on the value of the 1st selected item. Clicking on the second item, third item, does not change the SelectedIndex, causing the listbox to reload and scroll to the highest selected item position.
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May 7, 2015
how to display GridView Selected Row in dropdownlist and radiobutton outside GridView in ASP.Net?
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Aug 18, 2010
I display a GridView where ther user can choose a Datarow with the select action. I catch the selection with the "SelectedIndexChanged" event of the GridView.
[Code]....
My problem is I can't use the SelectedIndex to identify the Access Row because when the user uses paging/sorting the SelectedIndex is not the AccessRow. Somehow I have to identify the selected row the user chooses with the PrimaryKey in Access ("Number").
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Feb 10, 2011
I'm trying to create a dynamic table (inside a gridview) with some objects. The initial creation is fine, and I store all the selectedindexes in viewstate to recreate it upon postback. This, seemingly, works fine as well, but...After the postback, when I get into the selectindexchanged even handler, I can see the new selectedindex, but the original control sending it is reset to it's initial value (because I reset them upon postback).Anyone know a fance way of doing this?Here's my code:
[Code]....
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Jun 14, 2010
I wanted to create a dropdownlist that would trigger an asynchronous postback and update the Gridview inside the Updatepanel. However, no matter what I do, when the dropdownlist changes, nothing in the UpdatePanel will change, even the TestLabel....I've been banging my head against the walls for days on this -- why won't this work? When I remove the UpdatePanel code and triggers, all the code works, eg, you change the dropdownlist andthen gridview updates -- but it refreshes the page and this is why I wanted to put the Gridview inside an Updatepanel to make it look cleaner.[Code]....
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Feb 11, 2010
I'm having trouble binding my textbox to my dropdownlist. I got it to work but I don't think it is the correct way of doing it. I have my DDL bound to a datasource and populating everything correctly. However, I couldn't find a better way of binding my textbox to it besides using the FormView control and its counterpart, Templates (edit,insert,etc) It looks messy and i was hoping there was a better way of doing it. I've researched it online for awhile now but I couldn't understand how to implement for my situation.
My DDL has company names in it and the datasource has all the information from the table including what I'm trying to have my textbox pull (Address).
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Feb 25, 2010
I have dropDownList in EditItemTemplate in DataList which is used to choose value from possible ones.
To display cuurent value I used SelectedIndex='<%# (int)(QuestionType)Eval("Type") %>' inside he dropDownList.
But then I started to dataBind dropDownList dynamically and it stopped working...
Why? When does the code in SelectedIndex='<%# this code %>' works?
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Nov 21, 2010
LinQ / DropDownList gives error on selectedindex
[Code]....
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Dec 29, 2010
I have a datalist where each item consists of a textbox and a dropdownlist. I want to get the datakey value when a selected dropdownlist item changes. I can get the selected value of the dropdownlist, but I can't figure out how to get the key field value of the datalist row item that the dropdown resides in.
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May 25, 2010
I have loaded data into gridview from datatable which is in database.
I need to select any row from gridview to fetch the selectedrow values and need to display in corresponding textboxes.
but selectedindexchanged event is not firing, do I need to do any extra settings?
I want to fecth select index from the data loaded from database table.( not from manullay adding data to datarow and assigning datarow to datable and fanally to gridview- this is not the case)
onselectedindexchanged="GridView1_SelectedIndexChanged"
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May 26, 2010
I am populating a dropdownlist in a detailsView on Page_Load using a table adaptor as follows
[Code]....
[Code]....
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