private void BindGrid(int rowcount)
{
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new System.Data.DataColumn("ItemID", typeof(String)));
dt.Columns.Add(new System.Data.DataColumn("CategoryName", typeof(String)));
dt.Columns.Add(new System.Data.DataColumn("Description", typeof(String)));
dt.Columns.Add(new System.Data.DataColumn("ReorderLevel", typeof(String)));
dt.Columns.Add(new System.Data.DataColumn("ReorderQuantity", typeof(String)));
dt.Columns.Add(new System.Data.DataColumn("UnitOfMeasurement", typeof(String)));
dt.Columns.Add(new System.Data.DataColumn("Balance", typeof(String)));
if (ViewState["CurrentData"] != null)
{
for (int i = 0; i < rowcount + 1; i++)
{
dt = (DataTable)ViewState["CurrentData"];
if (dt.Rows.Count > 0)
{
dr = dt.NewRow();
dr[0] = dt.Rows[0][0].ToString();
}
}
dr = dt.NewRow();
dr[1] = ddlCategory.SelectedValue;
dr[2] = txtDescription.Text;
dr[3] = txtReorderLevel.Text;
dr[4] = txtReorderQty.Text;
dr[5] = txtUOM.Text;
dr[6] = txtBalance.Text;
dt.Rows.Add(dr);
}
else
{
dr = dt.NewRow();
dr[1] = ddlCategory.Text;
dr[2] = txtDescription.Text;
dr[3] = txtReorderLevel.Text;
dr[4] = txtReorderQty.Text;
dr[5] = txtUOM.Text;
dr[6] = txtBalance.Text;
dt.Rows.Add(dr);
}
// If ViewState has a data then use the value as the DataSource
if (ViewState["CurrentData"] != null)
{
CatagoryGridView.DataSource = (DataTable)ViewState["CurrentData"];
CatagoryGridView.DataBind();
}
else
{
// Bind GridView with the initial data assocaited in the DataTable
CatagoryGridView.DataSource = dt;
CatagoryGridView.DataBind();
}
// Store the DataTable in ViewState to retain the values
ViewState["CurrentData"] = dt;
}
protected void CatagoryGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DataTable dt = (DataTable)ViewState["CurrentData"];
int r = Convert.ToInt16(e.RowIndex);
string itNo = dt.Rows[r][0].ToString();
cateController.deleteItem(itNo);
dt.Rows[r].Delete();
CatagoryGridView.DataSource = dt;
CatagoryGridView.DataBind();
ViewState["CurrentData"] = dt;
}
private void LoadCatagory()
{
string connStr = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
string sql = "SELECT * FROM Catagories";
SqlConnection con = new SqlConnection(connStr);
SqlCommand cmd = new SqlCommand(sql, con);
con.Open();
SqlDataReader reader = cmd.ExecuteReader();
CatagoryGridView.DataSource = reader;
CatagoryGridView.DataBind();
con.Close();
}
protected void btnAdd_Click(object sender, EventArgs e)
{
//TO GRIDVIEW FROM DROPDOWN
DataTable dt1 = new DataTable();
DataTable dt2 = new DataTable();
string category = ddlCategory.SelectedItem.ToString();
string description = txtDescription.Text;
int reorderLevel = Convert.ToInt32(txtReorderLevel.Text);
int reorderQty = Convert.ToInt32(txtReorderQty.Text);
string unitOfMeasurement = txtUOM.Text;
int balanceQty = Convert.ToInt32(txtBalance.Text);
string prefix = category.Substring(0, 1);
string s_lastNo = cateController.getLastRow(category);
int number = Convert.ToInt32(s_lastNo.Substring(1, 3));
number++;
if (number < 10)
{
itemNo = string.Concat(prefix, 0, 0, number);
}
else if (number < 100)
{
itemNo = string.Concat(prefix, 0, number);
}
else
{
itemNo = string.Concat(prefix, number);
}
//same with database column name
dt1.Columns.Add("ItemID");
dt1.Columns.Add("CategoryName");
dt1.Columns.Add("Description");
dt1.Columns.Add("ReorderLevel");
dt1.Columns.Add("ReorderQuantity");
dt1.Columns.Add("UnitOfMeasurement");
dt1.Columns.Add("Balance");
DataRow dr = dt1.NewRow();
dr["ItemID"] = itemNo;
dr["CategoryName"] = category;
dr["Description"] = description;
dr["ReorderLevel"] = reorderLevel;
dr["ReorderQuantity"] = reorderQty;
dr["UnitOfMeasurement"] = unitOfMeasurement;
dr["Balance"] = balanceQty;
dt1.Rows.Add(dr);
CatagoryGridView.DataSource = dt1;
CatagoryGridView.DataBind();
if (ViewState["CurrentData"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentData"];
int count = dt.Rows.Count;
BindGrid(count);
}
else
{
BindGrid(1);
}
txtDescription.Text = string.Empty;
txtReorderLevel.Text = string.Empty;
txtReorderQty.Text = string.Empty;
txtUOM.Text = string.Empty;
txtBalance.Text = string.Empty;
if (cateController.insertAllCategory(itemNo, category, description, reorderLevel, reorderQty, unitOfMeasurement, balanceQty))
{
// Response.Write("<script>alert('Ok')</script>");
lblCatelogueStatus.InnerHtml = "<span class='glyphicon glyphicon-ok-circle'></span> " + "Successfully added!";
loadData();
}
else
{
btnAdd.CssClass = "btn btn-danger btn-block";
lblCatelogueStatus.InnerHtml = "<span class='glyphicon glyphicon-warning-sign'></span> " + "Adding Failed! Please try again later!";
//Response.Write("<script>alert('no')</script>");
loadData();
}
}
protected void CatagoryGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
CatagoryGridView.DataSource = ViewState["CurrentData"];
CatagoryGridView.PageIndex = e.NewPageIndex;
CatagoryGridView.DataBind();
}
public void bindData()
{
CatagoryGridView.DataSource = ViewState["CurrentData"];
CatagoryGridView.DataBind();
}
public void loadData()
{
CatagoryGridView.DataSource = cateController.getAllCategory();
CatagoryGridView.DataBind();
ViewState["CurrentData"] = cateController.getAllCategory();
}