Forms Data Controls :: Find Image Id On RowdataBound
Jan 8, 2010
I am working ob VS2008, asp.net 3.5 I have 1 problem regarding HTML control, I used Database Eval value along with Image id, because of that on row data bound method i am not able to find image id. Along with image id "imgdiv" Eval is bind "imgdiv<%# Eval("CNT_ID") %>" , if i removed Eval image id is found.
I'm trying to display images in a GridView (yes, still this...). [edit] Before I can come to that I have to upload some images to the database.
I've followed this tutorial for the "upload image to database" code (this worked fine for uploading images, but I don't know if the images were converted to byte):
[URL]
and I've followed this tutorial for the "display images in gridview" code (and "retrieve file" from the tutorial below).
[URL]
It doesn't quite work, the GridView shows but without images
Now I'm trying to change the "save file" code according to this tutorial:
[URL]
but I don't understand everything in it. When I try to upload an image I get an error on this line:
I have info from a couple of different tables that I need to be able to double click on a cell in a gridview and navigate to a couple of separate .aspx pages. Yesterday I learned how to use RowDataBound to get the name from a cell on a gridview to use in a delete confirmation dialoge box, and so am pretty sure I should be using this same RowDataBound, but I cant quite figure out where to start.
For example from the gridview below, I need to be able to double click in the "LoginIssue" field and navigate to an "EditLogin.aspx" page and subsequently be able to double click in the "ContractPath" and be able to navigate to a "ContractPath.aspx" page...or popup.
I have two different functions which are used to generate two different report on one gridview. In otherwords, in my design, I have a calendar event which is used to generate a report on the gridview and I have a dropdownlist which is used to generate a different report on the same gridview, so depending on the control that is clicked on depends on the report being generated. Now I would like a situation where my gridview rowdatabound is only applied to the dropdownlist report not the calendar event report. How can i go about doing so.
I enable AutoGenerateEditButton = "true", which can show me edit button in the child grid. Also i have tried to use the event rowediting which can return e.NewEditIndex too. for the master i use sqlDatasource design time. for the child grid am confusing how to do the edit/delete/add.
following link good enuf for master grid
[URL]
for child grid datasource if am not mistaken, guess need to assign the datasource during runtime. am not sure how to do this?
rowdatabound event is not firing during postback ,What to do?First time pageload I am getting result as expected. When I click checkbox ,which is in grid ,my values which are in other columns get disappeared, that means during postback. How to maintain values in the grid even after postback.note : I did some small manupulation of data during rowdatabound event for the columns which are in the grid.
I'm attempting to change the format of the 2nd column in a gridview during the rowdatabound event. I pulled sample code from various sources and wrote the following, but it's not working. I tried to do a trace, but the rowdatabound event didn't appear in the trace. Here's some code for the gridview:
[Code]....
Here's what I have in the code behind:
[Code]....
I expected the values in the 2nd template column to get written in italics, but nothing happens. I do have a gridview skin that's getting applied.
The item "Active" is a bit from the database And for the RowDataBound:
Const HeavyCheckMark As Char = ChrW(&H2714) For Each row As GridViewRow In gvProductCodes.Rows If gvProductCodes.EditIndex = -1 Then ' Selects the text from the Label which is inside the GridView control Dim lblActive As String = CType(row.FindControl("lblActive"), Label).Text lblActive = lblActive.Replace("True", HeavyCheckMark) lblActive = lblActive.Replace("False", "") 'Replaces the text in each Label control CType(row.FindControl("lblActive"), Label).Text = lblActive Else Dim chkbx As CheckBox = CType(row.FindControl("chkbxActive"), CheckBox) End If
The check mark works fine when not in edit mode. But when in edit mode, the row that is being edited works as expected. But the other rows now show True or False. I want them to have the const HeavyCheckMark in it instead.
When a Gridview row is in edit, I need to default an empty textbox to today's date. I am close, but the defaulted date is is not saved to the database. I can key in the date and the date is displayed and saved to the database. Even more interesting:
1. The date is defaulted to - 5/17/2010 2. If I erase the month and key the "5" back in the data is not saved. 3. If I erase the month and then change the month to "6", the data is saved to the database. If any value is changed in the date the save works.
I am using the following but want to remove grView, is it possible. this is used in gridview rowdatabound event handler.
If e.Row.RowState = DataControlRowState.Normal Or e.Row.RowState = DataControlRowState.Alternate Then Dim item As GridViewRow = e.Row Dim grView As DbDataRecord = DirectCast(item.DataItem, DbDataRecord) [code]...
I ran into this problem I'm sure someone else has similar encounter with, but just couldn't find a solution for it!
I want to disable few entries in the dropdownlist that's in the template field, depending on the value in BoundField when the gridview is being populated.
Below is my attempt:
[Code]....
JobStatus is the dropdownlist in the template field, and Status is the boundfield. In run time, the bolded line causes below exception: Object reference not set to an instance of an object. which I think is wingeing about null variable. Perhaps the templatefields are created after RowDataBound event?
I have a databound gridview in which i have added a template field to display a calcultion. I have created a rowdatabound event in which I want to perform a calculation, but don't know how. The calculation is as follows:
First, it should take the sum of all the payments made by a given customer. It then should divide this value by a daily membership rate, returning a days paid variable. Finally, it should add that variable to the customer since field and calculate the date that the customer is paid through.
I need to change the text style of a row based on whether or not it has a particular flag set in my database. I can change some attributes, but not all.
[Code]....
More specifically, e.Row.ForeColor changes the text color of the Edit link, but not any of the text retrieved from my database.
I use linq query as below and bind it to listview. I have 2 label control (name,remain).I want to check in code behind if p.count<200 then remain ="Sample text1"if price <300 then "sample text2".I know that I could do it before linq in gridview RowDataBound event
Dim prod= From p In db.products _ Select New With {p.name p.category, p.count} postlist.DataSource = prod postlist.DataBind()