GridView SelectedRow

[Guest]

Hi,

I've a radiobutton in my gridview and I want to dislpay the value in a cell
of the selected value on the RadioButton click using this code :
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
but it's giving me this error:
"Object reference not set to an instance of an object"
how can I fix it


Thanks

 

[Patrick.O.Ige]

Badis maybe try posting some more snippet code
Patrick

 

[Guest]

I'm doing it in a CheckedChanged event of a RadioButton in a TemplateField of
MyGridView

protected void MyRadioButton_CheckedChanged(object sender, EventArgs e)
{
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
}

Badis maybe try posting some more snippet code
Patrick

Hi,

I've a radiobutton in my gridview and I want to dislpay the value in a cell
of the selected value on the RadioButton click using this code :
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
but it's giving me this error:
"Object reference not set to an instance of an object"
how can I fix it


Thanks

 

[Patrick.O.Ige]

Badis where is the textbox?
Post your aspx page etc..
Elaborate more
Patrick

I'm doing it in a CheckedChanged event of a RadioButton in a TemplateField of
MyGridView

protected void MyRadioButton_CheckedChanged(object sender, EventArgs e)
{
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
}

Badis maybe try posting some more snippet code
Patrick

Hi,

I've a radiobutton in my gridview and I want to dislpay the value in a cell
of the selected value on the RadioButton click using this code :
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
but it's giving me this error:
"Object reference not set to an instance of an object"
how can I fix it


Thanks

 

[Patrick.O.Ige]

Also try looking at:
http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.selectedrow.aspx
Hope that helps
Patrick

I'm doing it in a CheckedChanged event of a RadioButton in a TemplateField of
MyGridView

protected void MyRadioButton_CheckedChanged(object sender, EventArgs e)
{
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
}

Badis maybe try posting some more snippet code
Patrick

Hi,

I've a radiobutton in my gridview and I want to dislpay the value in a cell
of the selected value on the RadioButton click using this code :
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
but it's giving me this error:
"Object reference not set to an instance of an object"
how can I fix it


Thanks

 

[Guest]

It doesn't mater because even if I do this:
string MyString = MyGridView.SelectedRow.Cells[1].ToString();
it will give me the same error!!! and it looks like in the click event of
the RadioButton the "SelectedRow" is not set or equal to null !!!?

Badis where is the textbox?
Post your aspx page etc..
Elaborate more
Patrick

I'm doing it in a CheckedChanged event of a RadioButton in a TemplateField of
MyGridView

protected void MyRadioButton_CheckedChanged(object sender, EventArgs e)
{
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
}

Badis maybe try posting some more snippet code
Patrick

Hi,

I've a radiobutton in my gridview and I want to dislpay the value in a
cell
of the selected value on the RadioButton click using this code :
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
but it's giving me this error:
"Object reference not set to an instance of an object"
how can I fix it


Thanks

 

[Patrick.O.Ige]

Badis have you looked at the msdn link i posted earlier?
Patrick

It doesn't mater because even if I do this:
string MyString = MyGridView.SelectedRow.Cells[1].ToString();
it will give me the same error!!! and it looks like in the click event of
the RadioButton the "SelectedRow" is not set or equal to null !!!?

Badis where is the textbox?
Post your aspx page etc..
Elaborate more
Patrick

I'm doing it in a CheckedChanged event of a RadioButton in a

TemplateField
of

MyGridView

protected void MyRadioButton_CheckedChanged(object sender, EventArgs e)
{
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
}

:

Badis maybe try posting some more snippet code
Patrick

Hi,

I've a radiobutton in my gridview and I want to dislpay the value in a
cell
of the selected value on the RadioButton click using this code :
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
but it's giving me this error:
"Object reference not set to an instance of an object"
how can I fix it


Thanks

 

[Phil H]

I'm doing it in a CheckedChanged event of a RadioButton in a TemplateField of
MyGridView

protected void MyRadioButton_CheckedChanged(object sender, EventArgs e)
{
TextBox.Text = MyGridView.SelectedRow.Cells[1].ToString();
}

Hi,

You need to make sure that the SelectedIndex property is not set to -1
when you try to access the SelectedRow.

There has to be a command type control somewhere in your template (e.g.
button or LinkButton) that generates a postback event and is assigned
the string value "Select" to its CommandName property (a RadioButton
control can't be used for this). That will raise a SelectIndexChanged
event and the SelectedRow property will then point to an actual row of
the grid.

HTH