C Sharp :: Condition For Add New Row In Datagridview
Sep 13, 2014
I have two table the first is called Imprrests and the second is called ]IprestsPays. There is an Imprest_ID column that is primary key in [icode]Imprests[/code] table and foreign key in ImprestsPays table
Imprests table consists the following columns:
Imprest_ID, Impres_value, Imprest_date, Employee_ID
Where Employee_ID column is primary key in Employees table and foreign key in Imprests table.
ImprestsPays table consists the following columns:
ID, Payment_value, Payment_date, Imprest_ID
My problem is in the buttonadd_click event in Imprsts form.
I want to prevent user from insert any new imprest for employee in Imprests table if employee haven't paid all payments in ImprestsPays table for old imprest...
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May 27, 2013
I am using C# to build up a application. Otherwise, i have two forms, the first form is frmMaterial and the second form is frmMaterialList. frmMaterial has a textbox to get value from datagridview of frmMaterialList. My code doesn't work. How to get value from datagridview of frmMaterialList into textbox of frmMaterial?
Note: frmMaterial has a button to load frmMaterialList
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Oct 20, 2014
How to find getthe textbox value in a datagridview & how to delete it?
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Feb 18, 2013
i have 10 column in my datagridview. i want to get whole value from row(which row i'll select). i have this code but it's shows only one cell value,
richtextbox.Text = dataGridView1.CurrentCell.Value.ToString();
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Jul 12, 2013
I just wanna update my database with one click only.
I do for update my database from datagridview1 but it shows a error like this :
Unhandled exception has occurred in your application . If you click Continue, the application will ignore this error and attempt to continue. If you click Quit,the application will close immediately.
Update requires a valid UpdateCommand when passed DataRow collection with modified rows
Attached Files : WindowsFormsApplication4.zip (127.2 KB)
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May 3, 2012
how to disable selection of 1'st row in dataGridView.
I made it select some other row, but even so when u try to move with arrows on keyboard it'll select 2'nd row(cause 1'st row was selected initially and you can see it's selected on RowHeader-1'st/Left Column)
This is my code for selecting row:
dataGridView1.ClearSelection();
dataGridView1.Rows[BoPrI].Selected = true;
dataGridView1.FirstDisplayedScrollingRowIndex = BoPrI;
BoPrI is int variable that has Index Value
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Nov 22, 2012
private void button1_Click(object sender, EventArgs e) {
if (openFileDialog1.ShowDialog() == DialogResult.OK) {
TxtPath.Text = openFileDialog1.FileName;
} string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+TxtPath.Text+"";
DataSet ds = new DataSet();
[Code] .....
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Apr 12, 2012
When I am filling a Application form and save this Application form Entries in database it saved successfully but below Application form in DataGridView How to show only current Entry row; There is not show a previous Entries in DataGridView?
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Dec 3, 2012
I have a window form with datagridview,textbox,button and listbox. In datagridview i have added a column. In first row i have given the value like 7000,
second row 2500,
third row 7000,
fourth row 1000,
fifth 1300,
sixth 9000....n number of row:
if i enter 12000 in textbox1 then it will calculate the total in particular rows in datagridview.And the total should be less than 12000 what we have entered the value in textbox1.
The result will display in listbox..
like first greater value is 9000+2500=11500 ,
second greater value 7000+1000+1300=9500,
other third greater value is 7,000.
So i have given a sample code where i cannot get the solution ..
double search;
search = double.Parse(textBox1.Text);
double sum = 0;
for (int i = 0; i < dataGridView1.Rows.Count - 1; i++) {
double se2 = Convert.ToDouble(dataGridView1.Rows[i].Cells[0].Value.ToString());
if (se2 == search) {
[code]....
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Sep 14, 2014
I delete rows in datagridview using chcekbox column. I write the following code:
private void btndelpay_Click(object sender, EventArgs e) {
DialogResult dr = MessageBox.Show("delete row", "do you want to delete",
MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2);
if (dr == DialogResult.Yes)
[Code] ......
my problem is /how to umcheck from rows in datagridview in chechboxes column when the user select dialogResult.NO
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Feb 22, 2015
I have a program in C#.net. There is a datagridview which shows all the details of the student. Then I add a column to update another column using the value I entered. Means I want to add roll no to student details table while running. I want the code to update it. Is it possible?
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Sep 14, 2014
I fetch maxid row to view in datagridview using the following code :
public static DataTable GetMaximpID() {
string strconn = AlShehabi.Properties.Settings.Default.NewSalariesDBConnectionString;
SqlConnection conn = new SqlConnection(strconn);
if (conn.State == ConnectionState.Closed)
[Code] ....
But I want to fetch all rows inserted and view in datagridview.... For example if user insert 4 rows I want to view them in datagridview after insert them using insertbutton_click....
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Mar 26, 2013
how I update sql table using datagridview cell..... I want to edit cell and then press enter it update the sql table ... ??? It possible or not ... ?
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Feb 9, 2013
I have patient_table in the database. which contain Id, name ,Image & other fields I have inserted the image in the Byte form in the database.Now i want to display all records in the Datagrid view in windows Form.
i am able to display id & Name & all fields but unable to display the image of a patient in the datagrid view.
I put all the records in the genric list:-
public static List<Personal_Details> AllMembers() {
List<Personal_Details> listMembers = new List<Personal_Details>();
Personal_Details pDetails;
try {
String Constring = ConnectionString.dataBaseConnectionString;
[code]...
i am unable to write the code for displaying the image on data gridview.
I am unable to find the solution for binding the image field in the datagrid view.
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Jan 9, 2013
//user list view
da = new SqlDataAdapter("SELECT * FROM [user]", con);
DataTable t = new DataTable();
ds = new DataSet();
da.Fill(ds);
t = ds.Tables[0];
listView1.View = View.Details;
[Code] ....
I tried with datagridview.refresh, update but its not working can any body sugesst me what to do for refresing the data ....do timer we have to use..? if yes then how ...?
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Nov 8, 2012
private void btnok_Click(object sender, EventArgs e)
{
DataView dv = new DataView(ds.Tables["Employee"]);
dv.RowFilter = "empno=" + txtempno.Text;
dataGridView2.DataSource = dv;
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Mar 11, 2013
I'm trying to get some more user friendly things in my program done. Now I'm trying to filter by typing in a text box and it filters to what you are typing and shows the entire row.
This is what I currently have:
private void txtFilter_TextChanged(object sender, EventArgs e) {
try {
SQLiteConnection connect = new SQLiteConnection(connString);
connect.Open();
[Code] ....
I get an exception error though:
SQLite error
near "'N'": syntax error
// N is what I started typing to start the filter.
Ok, so I've edited the code now to this:
private void txtFilter_TextChanged(object sender, EventArgs e) // FILTER TODO {
DataView view = new DataView();
SQLiteConnection connect = new SQLiteConnection(connString);
connect.Open();
view.RowFilter = "Channel like '%" + txtFilter.Text + "%'";
}
No more exception errors, just not what I want it to do. It just keeps everything there.
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Mar 29, 2013
I'm trying to add a function now that lets the user open 1 or more files and import them to the database and dataGridView. Now the way it is now (should) work. But when it has finished with FILE1, it won't add FILE2 as it then gives me an error that the Column Date Already exists.
My code is below
private void btnOpenLog_Click(object sender, EventArgs e) {
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.Filter = "Log Files (*.log)|*.log";
openFileDialog1.Multiselect = true;
[Code] .....
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Oct 6, 2014
I've written a bit of code :
#include <iostream>
#include <cmath>
#include <cstdio>
int main() {
for(int i=1; i<=1000; i++)
for(int j=i+1; j<=1000; j++)
for(int k=j+1; k<=1000; k++)
[Code] ...
Now why does defining the if condition as if(pow(i,2) + pow(j,2) == pow(k,2)) doesnt work (ie. doesn't print anything) while defining it as if(i*i + j*j == k*k) works flawlessly - by working I mean printing out single set of 3 numbers.
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Sep 24, 2013
I've tried retyping the code several times and didn't work for some reason the If wont accept both Q and q it just accepts Q.
Code:
#include <stdio.h>
int main(void)
{
printf("A menu will show up and you choose the number for the selection you want.
[Code].....
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Mar 22, 2013
I wanted to input some numbers with scanf function, i can enter some numbers and if I input -1 to the scanf, the input must end. And the scanf function has limited input, the max that I can input is 40 numbers.example if enter 1 2 4 6 5 4 -1 the scanf function will ended and the result will be appear.I wanted to know how the scanf function is like that would be best for this problem, Code: scanf("%d", &n); the result if I input those number will be like
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||||||
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May 23, 2014
I found a for loop in an example that I don't understund fully.
Code:
for (i=64; i; i/=2)
printf("i: %d
",i);
Now this is dividing by 2 until it reach '1' and stops. But why does this stops?
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Jul 29, 2014
I want to write an if statement which has condition like
if(i%1==0 && i%2==0 && i%3==0 && i%4==0 && i%5==0 &&
i%6==0 && i%7==0 && i%8==0 && i%9==0 && i%10==0 &&
i%11==0 && i%12==0 && i%13==0 && i%14==0 && i%15==0
&& i%16==0 && i%17==0 && i%18==0 && i%19==0 && i%20==0)
This of course is not the right way to write it. How to generalize it so that I can check the condition not only till 20 but till any number without manually adding all conditions.
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Oct 17, 2014
I am try to make a menu for deliver order program.
The menu divide into 3 group which are breakfast, lunch and dinner. However breaker only available at 6.30am-10pm, lunch available at 11am-1.30pm and dinner only available at 6.00pm-8.30pm
Let say my current time on the system is 10.30am, and the user select breakfast order. It should not available at this time, and prompt a message to use that the order not available at this period.
How to write the program?
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Mar 5, 2013
I am trying to write a simple program that produces different outputs based on entered age of two different users. Program should tell who is older and behave different if both users are older than 100.
Here is my program: Code: #include <iostream>
using namespace std;
int main()
{
[Code].....
Why program executes this when both users are obviously more than 100
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Feb 3, 2015
I'm trying to get an if/else statement to work using a character condition, but it is a no-go. After I input either a 'y' or 'n', the program just sits there until I press 'Enter' again, at which point it ends. It never actually goes through either of the 'if' statements. At first I only had a single '=' in the condition, but I found that that was wrong. When I corrected it to '==' it still didn't work. I also tried clearing the buffer by adding a 'getchar()' at the beginning of the program, but that didn't work either.
#include <stdio.h>
#define std_rate .8855
int main(void) {
char ans;
int counter = 1, euros = 5;
double dollars = 0, ex_rate;
[Code] .....
The compiler (Visual Studio 2013) requires me to use 'scanf_s' instead of just 'scanf' for some reason, and if I don't have two 'getchar()' commands at the end, then it won't stay open long enough for me to see the results.
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