C Sharp :: Datagridview And Listview Refresh After Data Getting Updated
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 26, 2013
Data is not getting updated in dropdownlist using data set:
protected void SpecificationNameDropDownList_SelectedIndexChanged(object sender, EventArgs e) {
if (SpecificationNameDropDownList.SelectedItem.Text != null) {
SpecificationValueLabel.Visible = true;
SpecificationValueDropDownList.Visible = true;
[code].....
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Feb 16, 2014
In Form1 I have a Datagridview showing the content of a table from DataBase.
In Form2 I add or modify a row in that table. So, when I get back to Form1 I would want the DataGridView get updated automatically.
To populate the DGV I use a Linq To Sql query:
Code:
Query = From ..... ;
Me.DGV.DataSource = Query;
or
Code:
Query = From ..... ;
Me.BindingSource1.DataSource = Query ;
Me.DGV.DataSource = Me.BindingSource1 ;
I have been trying to use:
BindSource (as DataGridView.DataSource)
BindingSource.ResetBinding(False)
DGV.Refresh()
etc...
Also, I added a new row in the same Fomr1 and nothing happens.
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Oct 3, 2012
I am trying to open an Excel file, refresh the query behind it and then save and close the file in C#.
I have the following but I am getting errors on the
Application excel = new Application()
section:
Application excel = new Application();
Workbook theWorkbook = excelFile.Workbooks._Open(txtLocation.Text, 0, false, 5, System.
Reflection.Missing.Value, System.Reflection.Missing.Value, false, System.
[Code] .....
I have added the Microsoft.Office.Interop.Excel reference, but still have the issue?
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Jan 15, 2013
i'm making a hotel reservation system for our final project in database management.. i'm having difficulty on how can i attach an image in a listview, if i insert a room category, the roomstatus will automatically insert a value of 1 on the table, and in the listview the data 1 in the column of status must be view as an image that indicates that the room is available...
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Oct 4, 2014
I have 3 columns already made Product, Price, Quantity, - what I want to do is take the textbox's txtName, txtPrice, txtQuantity, and add them to the columns in the right specific places.
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Apr 9, 2013
I want to add ComboBox inside ListView on mouse double click event. On each double click, a new ComboBox should be added on the next row.
I tried it with the code below, but its not working.
private void form_DblClick(object sender, form_DblClickEvent e)
{
ComboBox c;
this.Controls.Add(c = new ComboBox());
c.Items.Add("Input");
c.Items.Add("Delay");
c.Items.Add("Message");
c.Items.Add("comment");
listView1.Controls.Add(c);
}
actually i want to add combobox will all of the above elements in one combobox..when i double click it again..in next line another combobox will be added with all elements...
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Feb 4, 2013
How to display the record that match for the duplicate items in a Listview. I use C# with linq queries.
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Oct 5, 2013
This is my problem in my subject programming but i dont how to use Array in windows form ... If i run my code i want my Data in listview would not be disappear if i close the form ...?
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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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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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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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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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