Ich habe die gleiche Funktionalität wie unten mit benutzerdefinierten Paging getan (mit StoredProc) für mehr als 100 Millionen Datensätze in vielen Tabellen, zu aktualisieren, löschen und auch einfügen:
CREATE PROCEDURE [dbo].[sp_Mk]
@PageIndex INT,
@PageSize INT,
@tableName nvarchar(255),
@totalRow INT Output
AS
BEGIN
DECLARE @sql NVARCHAR(MAX)
Declare @anotherSql NVARCHAR(1000)
DECLARE @ParamDefinition NVARCHAR(500)
--DECLARE @totalRow INT
Set @sql = 'WITH TempResult AS(SELECT * FROM '[email protected]+'), TempCount AS (SELECT COUNT(*) AS MaxRows FROM TempResult)
SELECT * FROM TempResult, TempCount ORDER BY (Select Null)
OFFSET '+CONVERT(VARCHAR(20),(@PageIndex-1)*@PageSize) +' ROWS FETCH NEXT '+CONVERT(VARCHAR(20),@PageSize)+' ROWS ONLY'
PRINT @SQL
EXECUTE sp_executesql @SQL
Set @anotherSql=N'SELECT COUNT(*) as totalRow FROM '[email protected]
SET @ParamDefinition = N'@totalRowOutPut INT OUTPUT'
--PRINT @anotherSql
Execute sp_executesql @anotherSql,
@ParamDefinition,
[email protected][email protected],
@[email protected] OUTPUT
End
<asp:GridView CssClass="table-striped header-fixed" ID="grdDynamic" runat="server" AutoGenerateColumns="True" ShowHeaderWhenEmpty="true" AutoGenerateEditButton="true" AutoGenerateDeleteButton="true"
OnRowEditing="OnRowEditing_grdDynamic" OnRowUpdating="OnRowUpdating_grdDynamic" OnRowCancelingEdit="OnRowCancelingEdit_grdDynamic" OnRowDeleting="OnRowDeleting_grdDynamic" OnRowDataBound="OnRowDataBound_grdDynamic">
</asp:GridView><br/>
<asp:linkbutton id="AddButton" runat="server" commandname="Add" text="Insert: " OnClick="AddNewButton_Click" /><br/>
<asp:Repeater ID="rptPager" runat="server">
<ItemTemplate>
<asp:LinkButton ID="lnkPage" CssClass="pagination-ys" runat="server" Text = '<%#Eval("Text") %>' CommandArgument = '<%# Eval("Value") %>' Enabled = '<%# Eval("Enabled") %>' OnClick = "Page_Changed"></asp:LinkButton>
</ItemTemplate>
</asp:Repeater><asp:HiddenField runat="server" id="hdnPageIndex" Value="1"></asp:HiddenField>
SqlConnectionStringBuilder builder;
int pageSize = 100;
protected void Page_Load(object sender, EventArgs e)
{
builder = new SqlConnectionStringBuilder(connectionString);
if (!IsPostBack)
{
using (SqlConnection connObj = new SqlConnection(connectionString))
{
connObj.Open();
using (SqlDataAdapter adapter = new SqlDataAdapter("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_CATALOG='" + builder.InitialCatalog + "' AND TABLE_NAME Not In('AspNetUsers') Order By TABLE_NAME", connObj))
{
DataSet ds = new DataSet();
adapter.Fill(ds);
ddlTableNames.DataSource = ds;
ddlTableNames.DataBind();
ddlTableNames.Items.Insert(0, new ListItem("Select Table", String.Empty));
}
}
}
//}
//else if(ddlTableNames.Visible) ddlTableNames.Visible = false;
}
protected void ddlTableNames_SelectedIndexChanged(object sender, EventArgs e)
{
if (ddlTableNames.SelectedValue != "")
{
grdDynamic.Visible = true;
this.BindGrid(ddlTableNames.SelectedValue, Convert.ToInt32(hdnPageIndex.Value));
}
else if (grdDynamic.Visible == true) grdDynamic.Visible = false;
}
private void BindGrid(string selectedTable, int pageIndex, bool addNewRow=false)
{
using (SqlConnection connObj = new SqlConnection(connectionString))
{
using (SqlCommand cmd = new SqlCommand("sp_Mk", connObj))
{
int recordCount=0;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@PageIndex", pageIndex);
cmd.Parameters.AddWithValue("@PageSize", pageSize);
cmd.Parameters.AddWithValue("@tableName", ddlTableNames.SelectedValue);
SqlParameter totalRow = new SqlParameter("@totalRow", SqlDbType.Int, 4);
totalRow.Direction = ParameterDirection.Output;
cmd.Parameters.Add(totalRow);
connObj.Open();
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
adapter.Fill(ds);
grdDynamic.DataSource = ds.Tables[0];
if (addNewRow) ds.Tables[0].Rows.Add();
recordCount = Convert.ToInt32(ds.Tables[1].Rows[0].ItemArray[0]);
grdDynamic.DataBind();
connObj.Close();
if (totalRow.Value != DBNull.Value)
{
}
this.PopulatePager(recordCount, pageIndex);
}
}
}
private void PopulatePager(int recordCount, int currentPage)
{
double dblPageCount = (double)((decimal)recordCount/pageSize);
int pageCount = (int)Math.Ceiling(dblPageCount);
List<ListItem> pages = new List<ListItem>();
if (pageCount > 0)
{
pages.Add(new ListItem("First", "1", currentPage > 1));
for (int i = 1; i <= pageCount; i++)
{
ListItem item=new ListItem(i.ToString(), i.ToString(), i != currentPage);
if (i == currentPage) item.Attributes.Add("style", "color:red;");
pages.Add(item);
}
pages.Add(new ListItem("Last", pageCount.ToString(), currentPage < pageCount));
}
rptPager.DataSource = pages;
rptPager.DataBind();
}
protected void Page_Changed(object sender, EventArgs e)
{
int pageIndex = int.Parse((sender as LinkButton).CommandArgument);
hdnPageIndex.Value = pageIndex.ToString();
this.BindGrid(ddlTableNames.SelectedValue, pageIndex);
}
protected void OnRowEditing_grdDynamic(object sender, GridViewEditEventArgs e)
{
grdDynamic.EditIndex = e.NewEditIndex;
this.BindGrid(ddlTableNames.SelectedValue, Convert.ToInt32(hdnPageIndex.Value));
}
protected void OnRowUpdating_grdDynamic(object sender, GridViewUpdateEventArgs e)
{
GridViewRow row = grdDynamic.Rows[e.RowIndex];
string updateStatement = string.Empty;
for (int x = 0; x < row.Cells.Count; x++) updateStatement = updateStatement + grdDynamic.DataKeys[e.RowIndex].Values[x] + " = " + grdDynamic.DataKeys[e.RowIndex].Values[x] + ", ";
//int recordId = Convert.ToInt32(grdDynamic.DataKeys[e.RowIndex].Values[0]);
using (SqlConnection con = new SqlConnection(connectionString))
{
//using (SqlCommand cmd = new SqlCommand("UPDATE "+selectedTable"+ SET Name = @Name, Country = @Country WHERE CustomerId = @CustomerId"))
{
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
}
}
grdDynamic.EditIndex = -1;
this.BindGrid(ddlTableNames.SelectedValue, Convert.ToInt32(hdnPageIndex.Value));
}
protected void OnRowCancelingEdit_grdDynamic(object sender, EventArgs e)
{
grdDynamic.EditIndex = -1;
this.BindGrid(ddlTableNames.SelectedValue, Convert.ToInt32(hdnPageIndex.Value));
}
protected void OnRowDeleting_grdDynamic(object sender, GridViewDeleteEventArgs e)
{
int recordId = Convert.ToInt32(grdDynamic.DataKeys[e.RowIndex].Values[0]);
using (SqlConnection con = new SqlConnection(connectionString))
{
using (SqlCommand cmd = new SqlCommand("DELETE FROM " + ddlTableNames.SelectedValue + " WHERE RecordId = @recordId"))
{
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
}
}
this.BindGrid(ddlTableNames.SelectedValue, Convert.ToInt32(hdnPageIndex.Value));
}
protected void btnGo_Click(object sender, EventArgs e)
{ int myInt;
if(txtPageSize.Text!=null && txtPageSize.Text !=string.Empty)
if(int.TryParse(txtPageSize.Text, out myInt)) pageSize = myInt;
hdnPageIndex.Value = "1";
this.BindGrid(ddlTableNames.SelectedValue, 1);
}
protected void AddNewButton_Click(object sender, EventArgs e)
{
hdnPageIndex.Value="1";
this.BindGrid(ddlTableNames.SelectedValue, Convert.ToInt32(hdnPageIndex.Value), true);
}
protected void OnRowDataBound_grdDynamic(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow && e.Row.RowIndex != grdDynamic.EditIndex)
{
(e.Row.Cells[0].Controls[2] as LinkButton).Attributes["onclick"] = "return confirm('Do you want to delete this row?');";
}
}
Hoffe, es hilft: