How to find a cell value from ASP.Net gridview

Question

Am trying to get cell value from a columm and am geting the error below:

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

This is my code but am not sure about it and i cant call the column by name it does not allow me to do that.

protected void btnSearchEmployees_Click(object sender, EventArgs e)
   {       string n = grdAvailableStuff.Rows[2].RowIndex.ToString();
       MessageBox.Show(n);   
   }

Jagatpal Singh · Answer

string n = grdAvailableStuff.Rows[ 2 ].RowIndex.ToString(); but how to get index from nested gridview?

viniston Arockiasamy · Answer

thanks boss.......

Om prakash Singh · Answer

Dear Anele first in the page load event bind the gridview in the if(!page.postback) condition like if(!page.postback) { bindGrid(); } the fetch the value of cell in the button click event like string n = grdAvailableStuff.Rows[2].Cells[0].Text; you will definitly get the value

Suthish Nair · Answer

or another way.. gv.Rows[gv.SelectedIndex].Cells[0].Text Like Sam said you need to provide more information of the page design also.

Sam Hobbs · Answer

The article that Suthish refers to is for getting the GridView row reference when the control inside the GridView Row fires the event so it uses GridViewCommandEventArgs which does have a CommandArgument property. Since your button is outside the GridView (right?) that article won't help you. So what you need to do is to go back to what Vulpes said about postbacks. If you don't know how to figure that out then ask about that; that is what other developers with experience with this can help you with but I don't have as much experience as others such as Suthish have. I assume that if you want to try to provide more information relevant to what Vulpes said he will help.

Anele Ngqandu · Answer

Hi Sir The intelisense also cant find CommandArgument

Suthish Nair · Answer

int i = Convert.ToInt32(e.CommandArgument); string n = grdAvailableStuff.Rows[i].Cells[0].Text; refer more

Ish Bandhu · Answer

for(int i=0;i { string n=grdAvailable.Rows[i].Cells[0].Text; } //in Cells[0]= provide in whcih column you are searching value

Monir Mia · Answer

Hi SAM my mistake. I should ask more details before ans. For mine it works for row index and also Rows[]cells[]. But in each case I had Gridview as EventArgs. Thats why I asked for the code behind his gridview. But yess you are right. Appologise.

Pankaj Gogoi · Answer

Hi If you are using a control in that particular cell then you can use the grdAvailableStuff.FindControl(ControlName) in the row data bound event. protected void GridView1_RowDataBound(object sender GridViewRowEventArgs e) { if (e.Row.DataItem != null) { // Set the capacity label text string n = e.Row.Cells[0].Text; } } Hope this helps Thanks

Sam Hobbs · Answer

A button click event gets an EventArgs object which does not have a RowIndex property since RowIndex is not relevant to a button. Note that the code in the original post also uses RowIndex in a manner in which the RowIndex would not be relevant but Vulpes has already gotten that straitened out. So Vulpes asked if grdAvailableStuff.Rows[0].Cells[0].Text works and if it does not then the problem is something more like what Vulpes said. Chasing the RowIndex resulting from a click event is futile.

Monir Mia · Answer

Please post your gridview script from the code of aspx file and also the code in cs file for the data source of gridview. I have gridview where the command work to get the value for a cell of a specific row. Do you have lblbox or a textbox in gridview item for that cell ?

Anele Ngqandu · Answer

Hi The intelisense cant find the RowIndex

Monir Mia · Answer

string n = grdAvailableStuff.DataKeys[e.RowIndex].Values[0].ToString(); Please change the index from 0 to 1 or 2 and see if you can get the result as its based on your column number. First column of grind is 0 second is 1 and so on..

Vulpes · Answer

In that case I suspect you're losing the data in the gridview between postbacks. I'd try rebinding to the datasource after each postback and not just initially.

Anele Ngqandu · Answer

nop...nothing

Vulpes · Answer

Are you sure that you've got three rows? Does this line work: string n = grdAvailableStuff.Rows[0].Cells[0].Text;

Anele Ngqandu · Answer

nop not working stil giving me same thing

Vulpes · Answer

Suppose you want the value of the first column of the third row of the GridView. Then you can get it with this line: string n = grdAvailableStuff.Rows[2].Cells[0].Text;