How to display JavaScript confirmation dialog box AND run a function in GridView C# asp.net?

Question

When I delete a GridView row, I want to display JavaScript confirmation dialog box AND run a function. How do you do that?

Something like that:

protected void GridViewActivities_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if(e.Row.RowType == DataControlRowType.DataRow)
        {
            LinkButton lb = (LinkButton)e.Row.FindControl("LinkButton1");
            lb.Attributes.Add("onClick", "return confirm('You are sure?'); + MyFunction()");
        }
    }

the code you add for onclick event doesn't seem to be correct javascript — Daniel Manta
– Daniel Manta, Commented May 28, 2018 at 17:36

Mohsin Mehmood · Accepted Answer · 2018-05-28 17:42:43Z

1

If you want to run your function based on confirmation box result, try this code

protected void GridViewActivities_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if(e.Row.RowType == DataControlRowType.DataRow)
        {
            LinkButton lb = (LinkButton)e.Row.FindControl("LinkButton1");
            lb.Attributes.Add("onclick", "var result = confirm('You are sure?'); if(result) { MyFunction(); } return true; ");
        }
    }

If you want to run your function irrespective of the confirmation box result, try this code:

protected void GridViewActivities_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if(e.Row.RowType == DataControlRowType.DataRow)
        {
            LinkButton lb = (LinkButton)e.Row.FindControl("LinkButton1");
            lb.Attributes.Add("onclick", "confirm('You are sure?'); MyFunction(); return true; ");
        }
    }

answered May 28, 2018 at 17:42

Mohsin Mehmood

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2 Comments

pfx Over a year ago

It's more correct to return result instead of true, otherwise the postback of the linkbutton would also run when the user answers the confirmation with no/false.

Mohsin Mehmood Over a year ago

Well it depends what the requirements are. In the question the only requirement was to call the custom function after confirmation box.

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