Question

Can someone tell me how can I select the Row under the one on which I Click the Button ?

<asp:Button ID="btnmoveup" runat="server" Text="/\" OnCommand="MoveButton_Clicked"
                                    CommandName="UP" CommandArgument='<%# Eval("ProjectID") + ";"+Eval("Priority")%>'/>
                            </td>
                            <td>
                                <asp:Button ID="btnmovedown" runat="server" Text="\/" OnCommand="MoveButton_Clicked"
                                    CommandName="DOWN" CommandArgument='<%# Eval("ProjectID") + ";"+Eval("Priority")%>' />

The code behind:

protected void MoveButton_Clicked(object sender, CommandEventArgs e)
{
string[] arguments = e.CommandArgument.ToString().Split(new char[] {';'});
string pid1;
int prior;
pid1 = arguments[0];
prior = int.Parse(arguments[1]);

This Gives me the Priority and ProjectID of the Row in which I clicked the button.

How can I get the Priority and Project of the Row below this ?
The Rows are in the repeater control.

Answer 1

Change your CommandArgument to <%# Container.ItemIndex %>.

Then in your Clicked event, you can do something like:

int clickedIndex = int.Parse(e.CommandArgument);
int selectIndex = clickedIndex + 1; // or -1 depending on the button clicked.
var dataItem = (YourDataType)(yourRepeater.Items[selectIndex].DataItem);
var priority = dataItem.Priority;
var projectID = dataItem.ProjectID;

Alternatively you can bind the priority and project ID to hidden fields in the repeater, and use yourRepeater.Items[selectIndex].FindControl('yourHiddenFieldId').Text or similar.