How to call Datagridview Cell Click Event in Button_Click

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Hi guys, I am very happy to find this site today am Julie a newbie to c# programming and programming as a whole, I have a gridview in a windows application that does three things from me .first I import data from a database, then on a clickcell event it performs some calculations based on the data on the cell is there a way for me to do all these in one button click event instead of having to click every cell just to do my calculations?

C#

void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
   //Do something
}button1_click(object sender Args e)
{
//how do I call gridview method in here??
}

Posted 23-Mar-15 4:11am

Julia Fraveau

Updated 16-Oct-18 9:46am

v4

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3 solutions

Solution 1

Of course, you can refer to your gridview object:

GridView1.Rows[row_number].Cells[cell_number].Value = your_calculations.

Take a look at DataGridView class methods and properties.

DataGridView Class

Posted 23-Mar-15 5:33am

Joan Magnet

Comments

Richard Deeming 23-Mar-15 12:02pm

You just need to create an instance of the DataGridViewCellEventArgs class and pass it to the method:


var args = new DataGridViewCellEventArgs(theColumnIndex, theRowIndex);
dataGridView2_CellContentClick(dataGridView2, args);

Julia Fraveau 23-Mar-15 12:12pm

Thanks Richard, I have copied ur code, var args = new DataGridViewCellEventArgs(theColumnIndex, theRowIndex);
dataGridView2_CellContentClick(dataGridView2, args);
but I get its yelling at me about the parameters do I need to declare those theColumnIndex and theRowIndex first?

Richard Deeming 23-Mar-15 14:58pm

You would need to replace theColumnIndex and theRowIndex with the column and row indices that you wanted to process.

Julia Fraveau 24-Mar-15 7:51am

Thanks again for your time and guide Richard, I have done like this var args = new DataGridViewCellEventArgs(ColumnIndex, RowIndex);
dataGridView2_CellContentClick(dataGridView2, args);ColumnIndex and RowIndex are the two indices here but am still getting errorrs, and when ever I hover around DataGridViewCellEventArgs I see (int columnIndex, int rowIndex)I have no idea why still ,getting errors

Richard Deeming 24-Mar-15 8:02am

What errors are you getting?

Julia Fraveau 24-Mar-15 8:22am

the use of unassigned variables ==>ColumnIndex, RowIndex

Richard Deeming 24-Mar-15 8:25am

You'll need to assign the variables before you use them.

Julia Fraveau 24-Mar-15 8:36am

Exactly, I did that ,but the erros dont wanna go away.

Richard Deeming 24-Mar-15 8:39am

If you're still getting an "unassigned variable" error, then you haven't assigned the variable before you've used it.

Julia Fraveau 24-Mar-15 8:56am

now I actually did a public int theRowIndex{get;set},public int theRowIndex{get;set} errors went away ,but when I hit the button nothing happens I pull all these together with ur method on a buttonclick

Julia Fraveau 24-Mar-15 12:14pm

hey thanks , Richard, I finally got a way around it by using expression,thanks for all your help:))

Joan Magnet 23-Mar-15 12:25pm

If you're importing from a database you should use a DataTable.

You can made changes in your database fields before to bind this datatable to your datagrid.

<pre>
foreach(DataRow row in yourTable.Rows)
{
// calculate rows here.
}
</pre>

or you can add an event handler for RowsAdded event. Every time a new row is added to your grid this handler will be called.

https://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.rowsadded(v=vs.110).aspx

Joan Magnet 23-Mar-15 12:27pm

here some sample:

http://stackoverflow.com/questions/10551607/calculation-columns-in-datagridview-bounded-to-an-object

Julia Fraveau 23-Mar-15 12:59pm

Hi @Joan , the calculations are working ,but every time I would have to click eache cell say if there are 1000 rows ,is alot sir Joan, is there a way I could use gridview method performed above in my code in button_Click();pointed above by @Richard Deeming that I should use => var args = new DataGridViewCellEventArgs(theColumnIndex, theRowIndex);
dataGridView2_CellContentClick(dataGridView2, args);
I'm getting errors about the parameters .

Solution 3

Hi to all my dear friends...

use this...

private void btnChoose_Click(object sender, EventArgs e) {

MouseEventArgs b = new MouseEventArgs(System.Windows.Forms.MouseButtons.Left, 2,
MousePosition.X, MousePosition.Y, 0);
DataGridViewCellMouseEventArgs a = new DataGridViewCellMouseEventArgs(0, 0,
MousePosition.X, MousePosition.Y, b);
dataGridView1_CellMouseDoubleClick(sender, a);
}

enjoy it...

Posted 16-Oct-18 9:47am

Member 13323226

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Ekona_Pikin · Accepted Answer · 2015-03-24T08:10:00

You could just put the code that you want to execute in a method of its own and then call this one from both event handlers. Of course you will have to specify the row index yourself in the event handler for the click event of the button though.
Like this ==>

C#

private void DoMyFunction(int rowIndex)
        {

//Do your calculation in here ok:))}

C#

private void dataGridView2_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.ColumnIndex == 5 || e.ColumnIndex == 6)
            {
                DoWork(e.RowIndex);
            }
        }

C#

private void button3_Click(object sender, EventArgs e)
     {
         int row = 0; //always specify the row here...
         DoMyFunction(row);
     }

Hope that helps though...