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 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
dynamic 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 want to create dynamic template field in gridview at code behind. Kindly let me know how to create this.
View 2 RepliesI m trying to add template columns at run time. but it get lost on post back ,
I have to add columns on postback ,what approch should i use that the columns should not diappear at postback
i'm doing a page which allow user to choose date from calender extender using a text box.. after choosing the date, the text box will have the event ontextchange that will display all data related to that date without user clicking any button.. i will be using a range validator to check whether the user access to more than 2 days from the system date..
the problem i'm having is,
- after everytime i choose the date, the range validator will keep disappear due to the auto post back which i use in order to make the text event (ontextchange) work..
- i need some advise on how to solve this problem?? been trying to solve it for 2 days alread T.T
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...
If the grid column is clicked to sort i dont want to retireve data agian, i can get it from viewstate, but i dont know if that triggered the post back or if the ImageButton on the page triggered it
View 5 RepliesHow to show Header Template Alone in the Grid view when data source return NULL values or 0 value. and i want to also display the Header Template alone when the page loaded
View 3 RepliesI am using a asp link button in grid template field which calls a pop up,i need to find the link button's control in cs page.my link button code
<asp:LinkButton
runat="server"
ID="hlQName"
Text='<%# Eval("QuestionnaireName")%>'
OnClientClick="javascript:window.open('frmAssignQuestionnaire.aspx?Proj=<%#Eval("ProjectID")%>&ques=<%#
Eval("QuestionnaireName")%>+','','left=250px, top=245px, width=700px, height=450px, scrollbars=no, status=no, resizable=no');return false;"></asp:LinkButton>
now i am getting server tag is not well formed error,i tried removing the quotes within eval but then i didnt get parameter values in java script.
have situation here. On checking checked checkbox inside template field on grid view. This my codethis code suppose to be update into mysql when checkbox of each row being checked. Mean only update database which row has being checked, other wise the data inside database not being updated.What happen now once button being click, code above will be executed, but all the data being update not considering the checked checkbox only.
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I have a grid view and I am unable to get the values that I edited from the grid view using below code. Can Any one look into it and advise what is wrong with my code?
View 11 Replieshow to write grid view template (All option sort,) in code behind
View 1 RepliesI have gridview control where i have added two templates one template is the dropdown box another one is the text box.
I have common controls (Edit,update,cancel)
In the form i have one button .
On click on the button one new row is created in the grid view
Now how do i fetch the data entered in the dropdown box and the textbox.
How to reload the updated data to the dropdownbox,textbox.
On edit(twice) click it is switching to Update and cancel mode
On Cancel(twice) click it is switching to Edit mode.
i have a problem that is, I am calling data form database in agrid view and taht gridview contain both bounded and unbouded field now i wat to send this grid view data back to a datatable is it possible if yes then how?
View 2 RepliesI have grid view which databind from object datasource. my problem is i want to disply dynamic dropdown list on edit template based on the id which has in grid view. but still i can't figure out a way to do this.
View 1 RepliesI am working on the dynamic grid view(create dynamic columns).I need some thing like that given bellow in the fig:
columns1,2,3 are dynamic and the modules under the columns are also dynamic. to create grid like that.
Column1
Column2
Column3
Module1
Module2
Module3
Module4
Module5
Module6
Module7
Module8
I am dynamically loading user controls into my main page on button event.The user control has a textbox and a gridview When i enter data in textbox , the autopostback event fires and loads data into the gridview. when i load another instance of user control and do any post back the gridview data is not persisting.Until and unless I bind the data, gridview is not having any data after postback.This is creating issue when I al updating a row in gridview as data is not persisting after postback.
View 8 RepliesPassing dynamic value to Detail view of grid through object selecting parameter
View 4 RepliesI have grid view control that includes a dropdown control in a template field.I wish to execute some code when the value is changed in the dropdown list. Can't figure out how to capture this event though?
View 5 Replies I have a page that is mostly dynamically built in the page load of my VB.net code behind page.
The issue is that I made a change to the page and added a button that redirects to a secondary page. When the button is clicked there is a very noticeable lag until the button click event fires because the page is being rebuilt every time.
I had not wrapped the code in the load event in the If not ispostback.... because I have dynamic controls that the user interacts with and I need the page to be rebuilt when the user clicks them.
The dynamic controls are clickable table cells. I did some looking and I found that the RegisterPostBackControl. I thought this would be perfect but, it does not although I maybe using it incorrectly.
Here is the code flow.
[code]....
I have 3 textboxes , 1 dropdown , 1 Button and 1 gridview .
Textboxes ID are :ACode , ADesc , ASeq
DropDown ID is :CPhase
Button ID is :AddRowBTN
GridView ID is :PhasesTempGrid
Now whats the story is ?After adding some data into textboxes , when a user clicks ADDRow BTN , that data gets saved into datatable , then that datatable gets binded to gridview and it shows my textboxes data in it .
What i want to achieve ?In my gridview i am use templateField and inside that template field there are textboxes ( Let the users edit the row without clicking any button ) .
Take an example of dummy data and problem persisting in there :for e.g i put some data in textboxes :ACode = "ABCD"ADesc = "EFGH"ASeq = "HIJK"Then i click Add BTN , it saves the data in datatable and show in gridview , now if i do this in gridview :ACode = "Edited ABCD"ADesc = "Edited EFGH too"ASeq = "WoW There"Then i click Add BTN , it removes the edited record in gridview and shows original data which had came earlier from textboxes :ACode = "ABCD"ADesc = "EFGH"ASeq = "HIJK"I don't want that to be done ... Simple is that user can enter data from textboxes , click the btn to submit into grid then he can edit the data like he want ... data must not get flashed , here's my coding i have done so far :
public void AddNewData()
{
var dt = new DataTable();
if (ViewState["myDatatable"] != null)
{
dt = (DataTable) ViewState["myDatatable"];
}
[CODE]...
here i havent added dropdown combo in gridview but you can do it so that it will save my time (Bind it just the way PhaseDropDown have bind)...
i have a grid view with some coulmns like Name,Phone no etc with Edit,Delete column in grid view. I click a row in grid view to Edit,it goes another page where i can edit all fields .Once i update i redirect the page to gridview. I want the grid view to remain in that particular page say 4 of the grid view
View 5 RepliesIt happened to add an extra Gridveiw Header in row_databound event , It did worked fine on !Postback but disappered on Page.Postback . Quick google search guided me to move the event to Row_Created event and every thing is okay .
Can any expert post some pointers , differnces between grid row_created vs row_databount with some sample table data created dynamically behaviour of both the events in !Postback and page.Postback .
I am doing a online web application whereby user is able to enter in new template as well as search for template. The Add template is located outside the grid view and if user clicks on the button, it will load the grid view that is populated with data as there is a row of empty fields at the bottom. However when I click on the Add Template button, the grid view does not appear.
This is my business logic that I used it to search for records as well to click on the Add Template button to add in new records:
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