I'm using Accordion panes and gridviews which are created at run time. For each action item I create an accordion and then populate the tasks that are relevant to that action item in a gridview ( grid view is populated using the second query).
DataRow value dr[1].Tostring ( in the comments below in bold) is not updated with the next row value .
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I have taken a DataTable control and have added colums to it. Now i want to add rows to that DataTable but when i am trying to create a DataRow of DataTable, an error is generated, showing "Value of type 'System.Data.DataRow' cannot be converted to 'dataRow'".
exact coding that i have written is as follows:
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So, where i am getting wrong?
I am using Asp.net 3.5 listview control. In item_updating event I am using this code...
dim country as string = Dim country As String = e.NewValues("country_name").ToString.Replace(" ", "")
It's updating record correctly. for example if I update USA to USA 1 1 then it's updating like as it. But I want it to be USA11
I am using Stored Procedure as my Insert/Update command in a FormView. The sp returns a value which I will need to use. How do I retrieve the value after doing an insert / update?
View 4 Repliesim trying to retrive all the values in the datatable
but i keep getting only the first value
since i just finished learning C# i have no idea how to solve that
here the code i use let me know what am i missing
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I'm using ADO.Net code to access and update the data from the database. I'm using GridView for presentation. I wish to preserve old values of all the columns while updaing the records.
I'm using Code behind and not d Data Source controls. I wish to list the old records once record is updated.
I am updating a gridview. Problem is that when I hide certain fields that I do not want the user to update, they lose their values ie. the data is wiped out in the field unless I show them on the grid and make them writeable. Is there a property I need to set for the field to retain the value when the grid is updated or is this in the sql statement?
View 7 RepliesI am working with a formview edititemtemplate. Currently in my page load, i have some stuff that would show or hide certain panels based on dropdownlist values. These dropdown values get binded during page load. I need to be able to change the values/dropdowns, without rebinding the old data, and updating the visibility of the panels based on predefined rules.
I have experimented with putting my formview.databind() in page load if isnotpostback, in prerender, in prerender if isnotpostback. I have tried my rules (ex if ddlState.selectedvalue = "DE" then pnlDelaware.visible = "true") in the page load, and the page render. I'm just not sure how to get the stars aligned here. The closest i have come is having the databind in the pageload if notispostback, and the rules in the prerender. However I get an error "dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items.
how to change gridview cell value for a checked row without affecting any changes in database for ex if a row contains quantity of item 6 i want to change it value to 5,4 upto 0 that is on click event of delete quantity button i have identified row with a checkbox in grid view.
View 1 RepliesI have string array values in
_Entry_Id="1,2,3,4"
Dim _arr_Entry_Ids() As String = Split(_Entry_Id, ",")
i want to store this array values in datatble column
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I have a manual binded grid view from a datatable. The datatable is also manually generated.
When I generate the datatable, I will have a datarow, and i was thinking to add a hyperlink the the last column of every row. I have something like this, but it just not giving my desired output.
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I have a gridview with the columns below. Since Intern comment is going to be too long to fit it on the same line. I wanted to create a second row during databind and rowdatabound to display the Interncomments on the second line. But How can I put the comments inside a Literal control ?
Which will look like this
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my datatble
name class mark address
a 1 23 c
b 2 23 d
c 3 56 4
how can i loop through cells in this datatable and bind with gridview.
Scenario:
I am creating a custom gridview control which has a custom CheckBoxTemplateField column (deriving from TemplateField class). This template field column has custom Checkboxheadertemplate (implementing ITemplate) and CheckboxItemTemplate (also implementing ITemplate). In InstantiateIn method of both templates (header as well as Item template), I am adding a checkbox control which has Autopostback = true.
My requirement is:
I want to mark all the values in the binding column of datasource if checkbox in headertemplate is checked. I dont want to mark only rows visible on grid. I WANT TO MARK ALL ROWS IN DATASOURCE. I want to do this in _CheckedChanged event of checkbox in header template.
Problem I am facing: When I check/uncheck the checkbox in header, it postbacks. so in OnCheckedChanged event, gridview's datasource is null. Secondly, in any event of gridview, I could access only those rows of datasource for which corresponding rows are visible in gridview through Gridviewrow.DataItem property. But I want to set it for all rows in datasource.
I am using a template file for the ItemTemplate of the repeater control.
Within the template I am trying to get the value from the current datarow.
The code was then converted from VB to C# and I am getting the following error:
'System.Web.UI.Control' does not contain a definition for 'DataItem'
Below are the C# and VB versions:
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Converted C#:
In .ascx...
<%#GetAssociationName((RepeaterItem)Container.DataItem)%>
In .ascx.cs...
Then get the value using the following method.
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I have a user control which I am passing a DataRow to, Within this cotrol I have many ( textboxes ) which I would like to perform two-way binding to my DataRow. doing this will save a lot of work for me. I have searched high and low and can't seem to make this two-way databinding work.
View 9 RepliesI am working on asp.net application and code behind is c#
I am having gridview and adding the data to the gridview in the following manner.
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Now i want to add <div> element like the one below after the table row <tr> in the generated html
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I would like to retreive the data key (au_id) when the rowType = DataRow, so I can do a Sub query with the datakey Id.
I'm using this Microsoft Example:
<%@ Page language="C#" %> <script runat="server">
// Create a template class to represent a dynamic template column.
public class GridViewTemplate : ITemplate
{
private DataControlRowType templateType;
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I have one grid which have 5 columns 1 for subject,2,3,4 for marks which have textbox to insert obtained marks,and last column have one lable to display total of (2+3+4),now i want total value on textbox event,when user enter any value to any column of textbox i need to display total of all three columns in total column. that things i did using javascript now i have one grand total text box in footer template according to sum of total i need to display grand total.so how can i get that footer template textbox in rowtype of DataControlRowType.DataRow.JAVASCRIPT :
<script language="javascript" type="text/javascript">
function sum(m1, m2, m3, txtTotal,txtFTotal) {
var mark1 = document.getElementById(m1).value;
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How to bind generic list of DataRow to gridView...
I am using MVC arch , in classDAO m fetching data from table and in bussiness layer ,storing datatable into list<DataRow> and finally in controller , i want to bind in gridview..how can i read each datarow value and bind to gridview..
I have a gridview that I'm trying to update the Date something is corrected in the database. When I am putting a new value in, it is updating, but it isn't updating the new value, just the old one that is already there. I cannot figure out why this is happening.
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How to Retain old values on updating with Stored Procedure
View 6 RepliesI had a load event in my form where I assign a text box todays date as the text.I have created a button clic event that writes to a database the value which can be updated a required.
The problem i am having is that even if I change the value of the text box it sill seems to remeber the value it was given when the page as loaded.
I have a repeater that I have bound to a sql reader via my code behind page.
However I can't figure out how to populate the controls in my repeater in my code behind code.
At the moment I am having to specify the database field e.g productprice with the control in the .aspx page like this
<asp:Label ID="LabelUnitPrice" runat="server" Text='<%# Eval("productprice") %>'></asp:Label>
I would rather specify fields in my code behind than embedding them in the .aspx page.
I also have a subtotal label control in my repeater that I would like to populate its text property by mutiplying two of the database values e.g productprice * unitprice shown in my repeater.
I need to do this in code behind, looping through the repeater. Any idea of how I can do this in C#?
I am using VS 2005.I have 5 tables depending on their values ,I need to draw a bar chart.
View 1 Replies