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:
[Code]....
So, where i am getting wrong?
I am trying to upload a picture into database using FormView insertItemTemplate. FormView is bounded by objectdatasource.To upload, I placed FileUpload control inside insertItemTemplate.In table the dataType is image.Error:Object of type 'System.Boolean' cannot be converted to type 'System.Byte[]'.
View 3 RepliesWhen I click on my btnMissionary_Click which is suppose to add a datatable row I am getting the following error:
System.NullReferenceException: Object reference not set to an instance of an object. If I add a entry right away it seems to work fine.
Here is my form
HTML Code:
<div id="container">
[code].....
I have a DataTable that's populated with Data. I'm looping through it and checking to see what the contents of the first cell of the first column are. If they have the same value on the current iteration as the previous, I want to insert a blank row into my DataTable. The problem is that the new row is being added to the end of the DataTable instead of between the two rows. How can I get it not to append the row to the end. This is what I'm doing:
[Code]....
I have a dataset that has around 5 rows. I also have another Datarow() array that has an additional 3 rows which I would want to add to the dataset. The structure of both the Dataset Rows and the Datarow arrays are the same.
Do I have to perform a loop on the datatrow arrays and add them one by one? or is there a better way of adding them in one go ?
[Code]....
View 8 RepliesI want to delete the rows present in the DataTable by using LINQ (with out looping)
The deleted rows will be come from a LINQ as below
IEnumerable<DataRow> MobileQuery = (from d in dtBillDetail.AsEnumerable()
where (String.Compare(d.Field<string>("Destination"), "MOBILE", StringComparison.InvariantCultureIgnoreCase) == 0) select d );
The DataRows present in the "MobileQuery" should be deleted in the DataTable "dtBillDetail"
I have this error "The given value of type String from the data source cannot be converted to type datetime of the specified target column." when I used sqlbulkcopy to do the transaction
Here is my code:
[code]....
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.
[Code]....
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
[Code]....
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 .
[code]....
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.
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:
[Code]....
Converted C#:
In .ascx...
<%#GetAssociationName((RepeaterItem)Container.DataItem)%>
In .ascx.cs...
Then get the value using the following method.
[Code]....
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 RepliesHow 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 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.
[Code]....
Now i want to add <div> element like the one below after the table row <tr> in the generated html
[Code]....
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;
[Code]....
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;
[code]...
I want to do paging the API Membership without using the datacontrols, but I get this error "Unable to cast object of type '<TakeIterator>d__3a`1[System.Char]' to type 'System.Collections.IList'." when I do this,
[code]....
I am trying to write a table output from SQL database to a gridview/ Data List through an Object Data Source. I am a new starter and your help will be useful.
public List<Staff> GetStaff()
cmd.CommandType =
SqlConnection con =
new
SqlConnection(connectionstring);SqlCommand cmd =
new
[code]...
On the WebFrmSales.aspx, regarding the textbox controls, after the user have updated the SQL SERVER table with it. I tried to write the coding to clear all the textbox control but it not working.
This is the error message generated:
Error 6 Value of type 'String' cannot be converted to 'System.Web.UI.Control'.
This is the coding using VB Scripting
Code:
[code]....
get error in the header after this
[Code]....
I m trying to cast DataTable.Rows to DataRow in VB but could not manage!
Here is the sample code:
[Code]....
I have a method like
public DataRow
GetItem(ENTITY_TYPE
EntityType, long EntityID)
This fetches a row and returns it. Pretty simple.
However I can't test in the method to see if the row was fetched, as the method has to end with:
return ds.Tables[0].Rows[0];
If the row wasn't fetched, this errors as there is no row at position 0.
I can't do this:
DataRow dr;
if (ds.Tables[0].Rows.Count
== 1)
{
dr =
ds.Tables[0].Rows[0];
}
return dr;
.. because then I get an error that I can't return an uninitialised variable (dr).
I can't stipulate what the columns are and return a "blank" DataRow as far as I can see, because it's dynamic so I don't know what the columns will be. There doesn't seem to be a way to instantiate the DataRow return var except by assigning, er, a DataRow. Which I may not have.
I don't really want to switch to using the ItemArray and pass arrays about, I'd rather just pass the DataRow object as this is in a loop which might process a lot of rows.
[url=http://www.upanh.com/upanh_untitled/v/6tu4czcr7sd.htm][img]http://ca7.upanh.com/16.993.21338424.vtS0/untitled.jpg[/img][/url] [code] private Controller ctl = new Controller(); ..... DataTable db1 = new DataTable(); ArrayList arr1 = new ArrayList();
arr1 = ctl.getAlljob(); db1.Columns.Add("IDjob"); db1.Columns.Add("product"); .... db1.Columns.Add("report"); foreach (Job j in arr1) { DataRow dr = db1.NewRow(); dr["IDjob"] = v.getjobid.ToString(); .... dr["report"] = "Report"; <=== it show
"Report" but i want to it show as report linkbutton db1.Rows.Add(dr); } GridView1.DataSource = db1; GridView1.DataBind();[/code]
