I am facing a problem in how to disable GridView Delete Button for rowindex = 0.
Secondly, I want to Delete a Row on Delete Button clicked.
My GridView is used here for taking data only. I am using a k to create new row and serve it as DataSource for GridView.
<asp:gridview ID="Gridview1" runat="server" ShowFooter="true" AutoGenerateColumns="false" AutoGenerateDeleteButton="true" OnRowDeleting="Gridview1_RowDeleting">
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="Row Number" />
<asp:TemplateField HeaderText="WorkDone">
<ItemTemplate>
<asp:TextBox ID="txtWorkDone" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Total Time spent">
<ItemTemplate>
<asp:DropDownList runat="server" ID="ddlHours">
<asp:ListItem Selected="True">1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
<asp:ListItem>4</asp:ListItem>
<asp:ListItem>5</asp:ListItem>
<asp:ListItem>6</asp:ListItem>
<asp:ListItem>7</asp:ListItem>
<asp:ListItem>8</asp:ListItem>
<asp:ListItem>9</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
<FooterStyle HorizontalAlign="Right" />
<FooterTemplate>
<asp:Button ID="btnAddNewRow" runat="server" Text="Add New Row"
onclick="btnAddNewRow_Click" CausesValidation="false"/>
</FooterTemplate>
</asp:TemplateField>
</Columns>
</asp:gridview>
but I could not figure out what to implement inside event RowDeleting
protected void Gridview1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
//Here i am not getting
}
private void SetInitialRow()
{
DataTable dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("WorkDone", typeof(string)));
dt.Columns.Add(new DataColumn("TimeSpent", typeof(string)));
dr = dt.NewRow();
dr["RowNumber"] = 1;
dr["WorkDone"] = string.Empty;
dr["TimeSpent"] = string.Empty;
dt.Rows.Add(dr);
//Store the DataTable in ViewState
ViewState["CurrentTable"] = dt;
Gridview1.DataSource = dt;
Gridview1.DataBind();
foreach(GridViewRow row in Gridview1.Rows)
{
if(row.RowIndex == 0)
{
//Delete button must be disabled
}
}
}
private void AddNewRowToGrid()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
//extract the TextBox values
TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("txtWorkDone");
DropDownList box2 = (DropDownList)Gridview1.Rows[rowIndex].Cells[2].FindControl("ddlHours");
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = i + 1;
dtCurrentTable.Rows[i - 1]["WorkDone"] = box1.Text;
dtCurrentTable.Rows[i - 1]["TimeSpent"] = box2.SelectedItem.Text;
rowIndex++;
}
dtCurrentTable.Rows.Add(drCurrentRow);
ViewState["CurrentTable"] = dtCurrentTable;
Gridview1.DataSource = dtCurrentTable;
Gridview1.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
//Set Previous Data on Postbacks
SetPreviousData();
}
private void SetPreviousData()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("txtWorkDone");
DropDownList box2 = (DropDownList)Gridview1.Rows[rowIndex].Cells[2].FindControl("ddlHours");
box1.Text = dt.Rows[i]["WorkDone"].ToString();
box2.Text = dt.Rows[i]["TimeSpent"].ToString();
rowIndex++;
}
}
}
}
Help please any one!!
