C# :: DevExpress Gridview Data Disappearing
Sep 3, 2014I can enter text in the first cell but it disappears when I move to the next cell. What can be causing this to happen? I using C#, DevExpress Winforms.
View 2 RepliesI can enter text in the first cell but it disappears when I move to the next cell. What can be causing this to happen? I using C#, DevExpress Winforms.
View 2 RepliesI have a gridview in which I show report data, I wanted to print this data, so I added print functionality. This print functionality does not print entire gridview data, it only prints data which is visible on the screen and skip the data which is under vertical scroll bar.
Below is the print grid view code in c# for WINDOWS APPLICATION.
private void btnPrint_Click(object sender, EventArgs e)
{
if (printDialog1.ShowDialog() == DialogResult.OK)
{
[Code]....
using System;
using System.Collections.Generic;
using System.ComponentModel;
[Code]....
find the attachment.
Data is displaying in grid view but when i enter the particulars it's not inserting in to DB & grid view.
I have a gridview setup. It adds data into it no problem, but if I try and see it on the screen nothing appears?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Linq;
namespace FinalProject{
public partial class WebForm1 : System.Web.UI.Page
[Code] ....
I have question regarding Gridview.
Can i set each column in Gridview with different Datasource ? for example I create Gridview with 3 column , can I set each column with different datasource ?
I have two tables
Orders
ID, CreatedDate,CustomerID
1, 03/04/2014, test
OrderDetails
ID,ProductId, ProductName,Quantity,Price,Total
1, 5, Toy, 5, 1.99, 9.95
I have a gridview, im using its 'datasource dropdownlist' to populate it, i have the SQL statement
SELECT Orders.ID, OrderDetails.ProductId, OrderDetails.ProductName, OrderDetails.Quantity, OrderDetails.Price, OrderDetails.Total FROM (OrderDetails INNER JOIN Orders ON OrderDetails.ID = Orders.ID) WHERE (Orders.CustomerId = ?)
where the '?' is parameters source = QueryString, and QueryStringField= email
i have a session that is the customerEmailId, so
string CustomerEmailID = (string)Session["email"];
Response.Redirect("MyAccount.aspx?email=" + CustomerEmailID);//i have tested it and customerEmailid is test
however nothing loads in the GridView
I want to display a gridview when a textbox is focused. The gridview is hidden when the page is loaded and as soon as the focus is on the textbox the gridview should be visible.
Here is my code
<asp:TextBox CssClass="txt" ID="txtEducation1" AutoPostBack="true" runat="server" onfocus="MyFunction"></asp:TextBox>
protected void MyFunction(object sender, EventArgs e)
{
gridview1.Visible = true;
}
I am doing Attendance form in my project. So, I want to know that how to add TimeSelector control into Columns of the Gridview.
View 4 Replies View RelatedI have a Dropdownlist with in a gridview, in my grid I have 10 records, my dropdown values are 1,2,3...10. In first record drop down value is 1, second record dropdown value is 2....
1.now I changed the 5 drop down value to 2, then second drop value is changed to 3 and 3 dropdown has been changed to 4, 4th dropdown has been changed to 5
2.I changed the 5th drop down value to 8, then 8th dropdown value is changed to 7, 7th dropdown has been changed to 6, 6th dropdown has been changed to 5
Attached Files PAM.zip (7.0 KB, 87 views)
I am having a problem with deleting gridview rows. I am populating my gridview by selecting value in a dropdownlist then by clicking the add button, value will be added in my gridview, here is my code:
In my aspx:
<asp:GridView ID="GridView1" runat="server"
CssClass="mGrid" EmptyDataText = "There are no records to display">
<Columns>
<asp:TemplateField ItemStyle-Width="10">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server"/>
[Code] ....
With the btnRemove codes above, If I clicked it, it'll remove all values in my gridview even the unchecked rows, what I want is that just the checked rows not all. And are there any other simple way of removing rows in a gridview than using checkbox? I am using c# with asp.net.
Im trying to convert a base 64 string to an image and store in a gridview control (windows 8)
instead of an image im seeing text in the control
Windows.UI.Xaml.MediaImaging.Bitmap
convert base 64 string to bitmap
public async Task<BitmapImage> Base64ToImage(string base64)
{
var bitmap = new BitmapImage();
var buffer = Convert.FromBase64String(base64);
using (var stream = new Windows.Storage.Streams.InMemoryRandomAccessStream()) {
[Code] ....
passing selected row in gridview to my dropdown. I have 1 gridview, 1 textbox and 1 dropdown list box. My dropdown is populated by SqlDataSource from my table Country. On my gridview, I have 3 columns, which are SELECT, NAME and COUNTRY. Under SELECT column, I have my hyperlinked Select, every time I clicked on a certain row NAME will pass in textbox (no problem with that), but in my dropdown it does not populates the COUNTRY that I choose. For example, I have Jack for name and USA for country. Beside Jack and USA, I have a hyperlink Select, when I click Select, Jack will display on my textbox and supposed to be USA will display on my dropdown but not displaying instead it says an error "'cboCountry' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value".
I have tried the codes below:
protected void GridView2_SelectedIndexChanged(object sender, EventArgs e)
{
txtname.Text = GridView2.SelectedRow.Cells[1].Text;
cboCountry.Text = GridView2.SelectedRow.Cells[2].Text;
}
Only the textbox os working, no luck at all in dropdown...I'm using c# and asp.net.
I'm trying to find a way to remove an item that has been dynamically added when I change my drop down list selected user. The way this works is I add an edit and delete button dynamically when I select a user. I need to have the existing one be removed when I change users. Here is the code I'm using to build the two buttons. How do I remove them? Do I wipe out the columns and then add the columns again?
try {
dgvBG.DataSource = this.bgDataTableAdapter.GetData(cbPatientID.SelectedItem.ToString());
try {
Image editBGImg = Properties.Resources.editor;
Image delBGImg = Properties.Resources.del;
DataGridViewImageColumn btnBGEdit = new DataGridViewImageColumn();
[Code] ....
Ihave a gridview which populated via selected item on my drop down list which I don't have any problem with that. My problem is I am trying to save multiple rows on my gridview into my database, for example I have added 3 items on my gridview which looks like this:
Id | Name
111 | Jack
222 | Nicole
333 | John
Now, I want all that under column Id which is 111, 222 and 333 will be save on my database once I click Save button I am trying the code below but it gives me an error saying "system.data.sqlclient.sqlparameter does not contain a definition for 'Values' and no extension method 'Values' accepting a first argument of type..." :
SqlConnection con = new SqlConnection("Data Source=GATE-PCSQLEXPRESS;Initial Catalog=dbProfile;Integrated Security=True");
SqlCommand cmdd = new SqlCommand("Insert into profile (Id, profile_id)VALUES(@id, @profile_id", con);
foreach (GridViewRow row in GridView1.Rows) {
[Code] .....
My table should be look like this once I am able to save multiple rows from my gridview into my database:
auto_id | Id | profile_id
1 |111 | 101
2 |222 | 101
3 |333 | 101
I am using asp.net with c#.
I want to learn ow to align an integer/decimal values on the Left inside devexpress gridview.
View 4 Replies View RelatedI am developing windows application using visual studio 2008 and c#.
I have a GRIDVIEW, but I am not sure how to make a specific column of gridview as hyperlink.
For Example: First column of my grid view is Item ID and if user clicks any of the value in this column a new form should open.
Below is the code of my GIRDVIEW
DataSet ds;
DataSet ds3;
public void FillGridView(int LotID) {
clsPurchase obj = new clsPurchase();
[Code] ....
I have a Gridview ,in that one of the Column is DropDownList .I have 10 Records in my Grid and my DropDown Values are like this 1,2,3....10.This is the format to store my DropDown values ,if i delete 4th Row ,then my DropDown Values are Changed like 1,2,3,4....9.This is my task ,but i'm getting this format 1,2,3,--,5...10.
View 1 Replies View RelatedI need to find inverse of a matrix data in binary file should be used to form matrix.its not finding inverse correctly rest is working good.
Code:
#include <stdio.h>
void createbin();
void display();
void inverse();
int main()
{
createbin();
display();
inverse();
[Code] ....
I am writing a program where I need to read a byte of char data and convert it into a text string of binary data that represents the hex value...
i.e. The char byte is 0x42 so I need a string that has 01000010 in it. I've written the following subroutine....
------------- My Subroutine ----------------------------------------------------------------------
void charbytetostring(char input, char *output){
int i, remainder;
char BASE=0x2;
int DIGITS=8;
char digitsArray[3] = "01";
[Code] ....
When I submitted the byte 0x42 to the subroutine, the subroutine returned to the output variable 01000010... Life is good.
The next byte that came in was 0x91. When I submit this to the subroutine I get garbage out.
I am using a debugger and stepped through the subroutine a line at a time. When I feed it 0x42 I get what I expect for all variables at all points in the execution.
When I submit 0x91 When the line remainder = input % BASE; gets executed the remainder variable gets set to 0xFFFF (I expected 1). Also, when the next line gets executed..
input = input / BASE; I get C9 where I expected to get 48.
My question is, are there data limits on what can be used with the mod (%) operator? Or am I doing something more fundamentally incorrect?
I have written the following code to add data to text files which are required to store 3D scan data (I have to calculate the y-coordinate). My code seems to work except that it stops working when I want to create more than ten text files i.e. the directory I am trying to store them in will not hold any more than ten text files. Code is shown below.
#include <string>
#include <locale>
#include <iomanip>
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
[Code] ....
I want to input data into text file while not deleting the original data in the file and I use something as
ofstream writefile;
writefile.open("example1.txt");
if (writefile.is_open()) {
for(j=0; j<N; j++) {
[Code] ....
But this will delete the original data.
#include <iostream>
#include <fstream>
using namespace std;
int main() {
int r = 0;
int c = 0;
int num[17][15] = { 0 };
[Code] ...
// Here is my code for displaying the data from the text file into a 2d array and height next to it, but I am not able to diaplay the height from 60 to 76 next to the row of the 2d array, as shown in the table below. This is my program:
Recently the health authorities have listed a new way to calculate the body mass index (BMI) of an individual.
Values of 20 – 24 are classified as normal, 25-29 as overweight, and 30-34 as heavy.
The table below is a portion of a typical BMI table.
BMI:202122232425262728293031323334
Height:
60102108113118123128133138143149154159164169174
61106111116122127132138143148153159164169175180
.
.
.
MY task is to write a program that does the following things:
1.Produce the table by reading in the data from bmi.txt (on Moodle) into a 2-D array.
2. Display the table neatly on the screen, with row and column headings. The BMI should go from 20 to 34. The height should go from 60 to 76 inches.
3. Prompt the use for their height (in inches) and their weight.
4. Make the program print the closest BMI.
If their weight is lower than the values on the table, use 20 as the BMI.
If their weight is higher than the values on the table, use 34 as the BMI.
5.Loop the program so the user can find more BMI’s.
Been trying to configure the GridView to display ony 4 rows of data at a time. I thought it wasn't working because I forgot to set AllowPaging to True, but after I did that, I just get the error of
The data source does not support server-side data paging.
Source Error:
Line 66: titlesGridView.DataBind(); // displays query results
Here is my Books.aspx.cs code:
// Fig. 29.11: Books.aspx.cs
// Code-behind file for the password-protected Books page.
using System;
using System.Data.Entity;
using System.Linq;
namespace Bug2Bug.ProtectedContent {
public partial class Books : System.Web.UI.Page {
[Code] ....
Am I missing anything or doing something wrong thats not causing it to page & only display 4 titles at a time?
I have a situation where I am accessing an ASP.NET Generic Handler to load data using JQuery. But since data loaded from Javascript is not visible to the search engine crawlers, I decided to load data from C# and then cache it for JQuery. My handler contains a lot of logic that I don't want to apply again on code behind. Here is my Handler code:
public void ProcessRequest(HttpContext context) {
JavascriptSerializer jsonSerializer = new JavascriptSerializer();
string jsonString = string.Empty;
context.Request.InputStream.Position = 0;
using (var inputStream = new System.IO.StreamReader(context.Request.InputStream))
[Code] ....
I can call the function : getUserControlMarkup() from C# but I will have to apply some URL based conditions while calling it. The contentType.typeOfContent is actually based on URL parameters.
If possible to send JSON data to this handler then how to do that. I am trying to access the handler like this:
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Common.host + "Handlers/SideContentLoader.ashx?typeOfContent=1&UCArgs=cdata");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
But its giving NullReferenceException in Handler code at line:
ContentType contentType = jsonSerializer.Deserialize<ContentType>(jsonString);
I'm reading from a file the middle column of data (Volts) where my test file "AP.txt" is opened by my program. Here is a segment of the data:
time Volts dV
49552 -66.20183 -0.01556807
49553 -67.76025 -0.01556495
49554 -69.30704 -0.01533247
49555 -70.81799 -0.0148486
49556 -72.26774 -0.0141133
49557 -73.63226 -0.01315276
49558 -74.89141 -0.01201764
Since the calculation I performed gives me -71.77 Volts, I need to match this value to the time that this occurs closest to using my program, and output the time that this occurs at.
Here is my program so far:
int main()
{
std::ifstream inFile;
inFile.open("AP.txt");
ofstream results_file ("maxvaluewithinput.txt");
float TimeAtdVMax = 0;
float VoltsAtdVmax = 0;
[Code]...
If you're curious, this program isn't for homework. It's part of the independent learning on C++ I'm doing for a Master's Thesis; the program will eventually model the APD90 of a ventricular action potential.
I am wanting to be able to add as many different instances of data, while the user has not stated 'n', but then it only ever writes back to the screen the input for the last set of data. Where as I want to display back to the screen all the data that has been entered.
Code:
#include <iostream>
#include <string>
/*Function Declaration*/
void createItem();
void returnItem();
//Items structure
[code]...