输入的字符串格式不正确？

Question

I want to display data in gridview based on check box selection from another grid view. The given below code getting an error. The error is Input string was not in a correct format . Help me to find a proper solution. Thank you.

Code :

protected void btnAssign_Click(object sender, EventArgs e)
   {
    Dictionary<int, string> selectedEmployees = new Dictionary<int, string>();
    foreach (GridViewRow row in GridView1.Rows)
       {
        if (row.RowType == DataControlRowType.DataRow)
            {
               CheckBox chkRow = (row.Cells[2].FindControl("CheckBox1") as CheckBox);
               if (chkRow.Checked)
                {
                      selectedEmployees.Add(int.Parse(row.Cells[0].Text), row.Cells[1].Text); // error
                }

            }

        }

       if (selectedEmployees.Any())
        {
            GridView2.DataSource = selectedEmployees;
        }
   }

ASPX:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="EmployeeID" HeaderText="Employee ID" ReadOnly="True" SortExpression="EmployeeID" />
<asp:BoundField DataField="FirstName" HeaderText="Employee Name" ReadOnly="True" SortExpression="FirstName" />


<asp:TemplateField HeaderText="Select" SortExpression="Select">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

---

<asp:GridView ID="GridView2" runat="server"> </asp:GridView>

DB:

[EmployeeID]        NVARCHAR (50)  NOT NULL,
[FirstName]         NVARCHAR (150) NULL,

The given below image is showing data in grid view based on drop-down selection. After that I want to select some rows and click assign then I have to display the selected rows in new gridview.

Image :

Answer 1

You are parsing the STAFF0023 to int

int.Parse(row.Cells[0].Text)

which result in the error 'Input string was not in a correct format'