Get DataKey values in GridView RowCommand

I usually pass the RowIndex via CommandArgument and use it to retrieve the DataKey value I want.

On the Button:

CommandArgument='<%# DataBinder.Eval(Container, "RowIndex") %>'

On the Server Event

int rowIndex = int.Parse(e.CommandArgument.ToString());string val = (string)this.grid.DataKeys[rowIndex]["myKey"];

I managed to get the value of the DataKeys using this code:

In the GridView I added:

DataKeyNames="ID" OnRowCommand="myRowCommand"

Then in my row command function:

protected void myRowCommand(object sender, GridViewCommandEventArgs e) {    LinkButton lnkBtn = (LinkButton)e.CommandSource;    // the button    GridViewRow myRow = (GridViewRow)lnkBtn.Parent.Parent;  // the row    GridView myGrid = (GridView)sender; // the gridview    string ID = myGrid.DataKeys[myRow.RowIndex].Value.ToString(); // value of the datakey     switch (e.CommandName)    {      case "cmd1":      // do something using the ID      break;      case "cmd2":      // do something else using the ID      break;    } }

foreach (GridViewRow gvr in gvMyGridView.Rows){    string PrimaryKey = gvMyGridView.DataKeys[gvr.RowIndex].Values[0].ToString();}

You can use this code while doing an iteration with foreach or for any GridView event like OnRowDataBound.

Here you can input multiple values for DataKeyNames by separating with comma ,. For example, DataKeyNames="ProductID,ItemID,OrderID".

You can now access each of DataKeys by providing its index like below:

string ProductID = gvMyGridView.DataKeys[gvr.RowIndex].Values[0].ToString();string ItemID = gvMyGridView.DataKeys[gvr.RowIndex].Values[1].ToString();string OrderID = gvMyGridView.DataKeys[gvr.RowIndex].Values[2].ToString();

You can also use Key Name instead of its index to get the values from DataKeyNames collection like below:

string ProductID = gvMyGridView.DataKeys[gvr.RowIndex].Values["ProductID"].ToString();string ItemID = gvMyGridView.DataKeys[gvr.RowIndex].Values["ItemID"].ToString();string OrderID = gvMyGridView.DataKeys[gvr.RowIndex].Values["OrderID"].ToString();