Gridview Related question

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C#

I want to count no of rows i checked in gridview. I had taken checkbox in gridview
thanks

Posted 24-Jan-12 19:07pm

SantoshRohinSantosh

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3 solutions

Solution 1

C#

protected void btnCountSelectedRows_Click(object sender, EventArgs e)
    {
        if (GridView1.Rows.Count > 0)
        {
            for (int i = 0; i < GridView1.Rows.Count; i++)
            {
                //finding checkbox in GridView
                CheckBox cbx = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");
                //CheckBox not null
                if (cbx != null)
                {
                    //if CheckBox Checked
                    if (cbx.Checked)
                    {
                        //add your logic here.
                        //this is for example to get first column values of selected CheckBox
                        string firstColumnValue = GridView1.Rows[i].Cells[0].Text;
                        Response.Write(firstColumnValue);
                    }
                }
            }
        }
    }

Try This one using JavaScript:
Create a public Static method in YourForm.aspx.cs

public static String CreateCheckBox(Int32 index)
{
    ///Return a checkbox created with dynamic ID
    return "<input type="\"checkbox\"" id="\"Chk_"" index="" hold=" /> "  önclick="\"checkSelection()\"" />";
}

Create a item template in gridView... like this

<TemplateField HeaderText="">
<ItemTemplate HorizontalAlign="Left" />
<ItemTemplate>
<%#YourNamespace.YourForm.CreateCheckBox(Container.DisplayIndex)%>
</ItemTemplate>
</TemplateField>

Add the javascript function (On click) of the checkboxes

function checkSelection() {
var nMarked = 0;
for (var i = 0; i < document.forms[0].elements.length; i++) {
if (document.forms[0].elements[i].checked &&
document.forms[0].elements[i].name.indexOf('Chk_') > -1) {
    nMarked = nMarked + 1;
}
}
if (nMarked == 0) {
    alert("no element has been selected");
    return;
 }
else
{
    alert("You have selected " + nMarked + " checkboxes");
    //Do other stuff here
}
}

tell me what hapened

Posted 24-Jan-12 19:14pm

Prasad_Kulkarni

Updated 24-Jan-12 19:41pm

v2

Comments

SantoshRohinSantosh 25-Jan-12 1:35am

This method is not giving the exact count .It is giving me 0 count .

Prasad_Kulkarni 25-Jan-12 1:43am

I have used that method in my project its working fine,
let it be just try with second method i have posted.

SantoshRohinSantosh 25-Jan-12 1:47am

Thanks pashad but i am not using aspx page i am doing standalone project so please help me in doing that.

Prasad_Kulkarni 25-Jan-12 1:52am

For standalone, the first solution was exact one, see if you are missing out something,n let me know i'm trying my best to give you what you want okay.
If you can just post your code, so i'll come to know what you did n what more you require.

SantoshRohinSantosh 25-Jan-12 2:12am

I got the solution,it is like this
foreach (DataGridViewRow row in datagridallstudents.Rows)
{

DataGridViewCheckBoxCell cell = row.Cells["SELECT"] as DataGridViewCheckBoxCell;
//select is the header name.
ClsConnection.Conn.Close();

if (cell.Value != null)
{
MessageBox.Show(row.Cells[0].Value.ToString());
}

Thanks Pashad

Prasad_Kulkarni 25-Jan-12 5:39am

You're welcome

Solution 2

Declare a global variable count.
Just in GridView1_RowDataBound event, find your row which status is checked and increase it by 1 Like(count+=1)..

And in some other events like button click show it...

Posted 24-Jan-12 19:18pm

AmitKumar89

Updated 24-Jan-12 19:19pm

v2

Comments

SantoshRohinSantosh 25-Jan-12 1:33am

Thanks Amit but there is no such event GridView1_RowDataBound
Can u tell me some other mehtod to do it.

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SantoshRohinSantosh · Accepted Answer · 2012-01-24T20:17:00

C#

foreach (DataGridViewRow row in datagridallstudents.Rows)
                    {

                        DataGridViewCheckBoxCell cell = row.Cells["SELECT"] as DataGridViewCheckBoxCell;
                        ClsConnection.Conn.Close();
                        //MessageBox.Show(cell.Value.ToString());
                        if (cell.Value != null)
                        {
                            MessageBox.Show(row.Cells[0].Value.ToString());
                        }
                      

                    }
//SELECT is the datagrid header name