Passing the selected gridview row to a new page for edit

Question

Hi , I am a newbee. Please help I have a gridview displayed in page1 and when a row is selected data on the row should be displayed in page2.

Kirtan Patel · Answer

Use it Like Below CheckBox1.Text = Session["Discontinued"].ToString(); // if want to Check the Check Box CheckBox1.Checked = Convert.ToBoolean(Session["Discontinued"]);

ck blues · Answer

how can i send my prgogarm clearly as like you post it, is there any technique ??unitprice,units in order,reorder level are short variables,discontinued is decimal variable thats data regarding coloums,i'm getting error in upadte and i cant see the data for all those 4 coloums in my output file can you please help me thankyou

ck blues · Answer

public partial class EditForm : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { TextBox1.Text = Convert.ToString(Session["ProductId"]); TextBox2.Text = Convert.ToString(Session["ProductName"]); TextBox3.Text = Convert.ToString(Session["SupplierID"]); TextBox4.Text = Convert.ToString(Session["CategoryID"]); TextBox5.Text = Convert.ToString(Session["Quantityperunit"]); TextBox6.Text = Convert.ToString(Session["UnitPrice"]); TextBox7.Text = Convert.ToString(Session["UnitsIn stock"]); TextBox8.Text = Convert.ToString(Session["Unitsonorder"]); TextBox9.Text = Convert.ToString(Session["Reorderlevel"]); CheckBox1.Text = Convert.ToString(Session["Discontinued"]); //bool ReceivedValue = Convert.ToBoolean(Session["Discontinued"].ToString()); // if (ReceivedValue == true) { CheckBox1.Checked = true; } // else CheckBox1.Checked = false; //CheckBox1.Checked = Convert.ToBoolean(Session["discontinued"]); //CheckBox1.Text = Convert.ToString(Session["Discontinued"]); } protected void Button1_Click(object sender, EventArgs e) { ProductsBLL pb = new ProductsBLL(); pb.UpdateProduct(TextBox1.Text, TextBox2.Text, TextBox3.Text, TextBox4.Text, TextBox5.Text, TextBox6.Text, TextBox7.Text, TextBox8.Text, TextBox9.Text, CheckBox1.Text); } }

ck blues · Answer

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { int index = e.NewEditIndex; Session["ProductId"] = GridView1.Rows[index].Cells[1].Text; Session["ProductName"] = GridView1.Rows[index].Cells[2].Text; Session["SupplierId"] = GridView1.Rows[index].Cells[3].Text; Session["CategoryId"] = GridView1.Rows[index].Cells[4].Text; Session["QuantityperUnit"] = GridView1.Rows[index].Cells[5].Text; Session["Unitprice"] = GridView1.Rows[index].Cells[6].Text; Session["Unitsinstock"] = GridView1.Rows[index].Cells[7].Text; Session["Units on order"] = GridView1.Rows[index].Cells[8].Text; Session["Reorderlevel"]=GridView1.Rows[index].Cells[9].Text; Session["Discontinued"] = GridView1.Rows[index].Cells[10].Text; Server.Transfer("EditForm.aspx"); } This is page 1

Kirtan Patel · Answer

Hey Friend , Post your Code of Page 1 and What you have Coded in Page 2 Here I m not getting you Explain a lil bit what you want to achieve as Final Result . Happy Coding :)

ck blues · Answer

That didnt helped me stil having the same error.. page1 i dont hav chkbox.in my gridview i hav short and decimal variables tooo...for tht i decalred as TextBox7.Text = Convert.ToString(Session[""]); in my page 2as a refrence of page1..bcoz if i wrote like Convert.ToBoolean its giving me error tooo....is thr anything i'm missing...??? Thanks

Kirtan Patel · Answer

if you have added Bool Value in session at page 1 like Session[" Discontinued"] = checkBox1. Checked ; then you can Check it at receiving time in page 2 like below .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: Consolas, "Courier New", Courier, Monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } bool ReceivedValue = Convert.ToBoolean(Session[ "Discontinued" ].ToString()); if ( ReceivedValue == false ) { // Do Somthing }

ck blues · Answer

stil i'm getting some error like "make shure your method arguments are in right format" basically what i didnt get is which values i'm sending to page2...the index stored values r something else is it possible if i use if statement to compare with what values i'm getting into the checkbox...if you could tell me that wil be so helpful thankyou so much...

ck blues · Answer

i hav a chkbox if write a statement CheckBox1.Text = Convert.ToString(Session["Discontinued"]); i'm getting some error cantconvert bool to string in my page2 ..and i hav some short variables also i'm unable to dispaly those values in page2 can you please help me thankyou so much

Kirtan Patel · Answer

Hi Here is What you need now you Dont have to Select the Row too. :) .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: Consolas, "Courier New", Courier, Monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } protected void GridView1_RowEditing1( object sender, GridViewEditEventArgs e) { int index = e.NewEditIndex; Session[ "Username" ] = GridView1.Rows[index].Cells[0].Text; Session[ "Password" ] = GridView1.Rows[index].Cells[1].Text; } if you liked my Answer Don't Forget to mark it as Answer :) Happy Coding :)

ck blues · Answer

Hiiii, i'm getting output but not as i needed... like why i need to press select everytime..and one morething if i first click on select its takeing that row values then if i click on edit of other row then also its giving me the 1st row which i pressed eariler...can you help me...thanks

Kirtan Patel · Answer

Hi , Make Sure You have Selected the Row First Then Press Edit and Grid Must Have Some Data like Below Image Error Says that GridView's Cell[0] contain Null Data ( having No string Value ) You can Check the Grid's Content before Sending it to Session if your Cell[0] is template field Then let me know other Wise Code is Correct .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: Consolas, "Courier New", Courier, Monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } protected void GridView1_RowEditing( object sender, GridViewEditEventArgs e) { if (GridView1.SelectedRow.Cells[0].Text != null && GridView1.SelectedRow.Cells[1].Text != null ) { Session[ "Username" ] = GridView1.SelectedRow.Cells[0].Text; Session[ "Password" ] = GridView1.SelectedRow.Cells[1].Text; } } Happy Coding :)

ck blues · Answer

Hii , In first page i'm getting the error as Null reference Exception : Use the "new" keyword to create an object instance Session["ProductName"] = GridView1.SelectedRow.Cells[0].Text; i wrote the satatement like that,tht page is nt going to page2 can you please help me..Thankyou

Kirtan Patel · Answer

Hi , you can do this By Session use Following Code In Page 1 Write Code as below for example if We are passing two columned Row(Username ,Password) .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: Consolas, "Courier New", Courier, Monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } protected void GridView1_RowEditing( object sender, GridViewEditEventArgs e) { Session[ "Username" ] = GridView1.SelectedRow.Cells[0].Text; Session[ "Password" ] = GridView1.SelectedRow.Cells[1].Text; } In Page 2 Write Code Below to Retrieve Data From Session that We have Stored in Session .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: Consolas, "Courier New", Courier, Monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } protected void Page_Load( object sender, EventArgs e) { Label1.Text = Session[ "Username" ].ToString(); Label2.Text = Session[ "Password" ].ToString(); } if you liked my Answer Don't Forget to mark it as Answer :) Happy Coding :)

ck blues · Answer

Kirtan,Thank for your response. Is it possible by using gridview rowedit event and pass the row data to new page through session? Thanks ck

Deependra Khangarot · Answer

First we need to setup our grid in our main page called RedirectMyGridView.aspx: ' Text="Go!"> Next we need to create our datasource and bind it on our page_load event: using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class RedirectMyGridView : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { this.BuildGridViewItems(); } } private void BuildGridViewItems() { DataTable dt = new DataTable(); DataColumn siteIdColumn = new DataColumn("SiteId"); DataColumn siteNameColumn = new DataColumn("SiteName"); dt.Columns.Add(siteIdColumn); dt.Columns.Add(siteNameColumn); DataRow dr1 = dt.NewRow(); dr1[siteIdColumn] = "1"; dr1[siteNameColumn] = "Google"; dt.Rows.Add(dr1); DataRow dr2 = dt.NewRow(); dr2[siteIdColumn] = "2"; dr2[siteNameColumn] = "Yahoo"; dt.Rows.Add(dr2); DataRow dr3 = dt.NewRow(); dr3[siteIdColumn] = "3"; dr3[siteNameColumn] = "MSN"; dt.Rows.Add(dr3); DataRow dr4 = dt.NewRow(); dr4[siteIdColumn] = "4"; dr4[siteNameColumn] = "DevPinoy"; dt.Rows.Add(dr4); urlGrid.DataSource = dt; urlGrid.DataBind(); } } After that we need to setup our accepting page called RedirectToUrl.aspx: using System; public partial class RedirectToUrl : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (Request.QueryString["SiteId"] != null) { string redirectionUrl = ""; try { //get the value of the site id; int siteId = int.Parse(Request.QueryString["SiteId"].ToString()); //check if siteid is inside the defined bounds. do nothing if it fails. if (siteId > 4 || siteId < 1) { return; } //chck and compare if (siteId == 1) { redirectionUrl = "http://www.google.com"; } else if (siteId == 2) { redirectionUrl = "http://www.yahoo.com"; } else if (siteId == 3) { redirectionUrl = "http://www.msn.com"; } else if (siteId == 4) { redirectionUrl = "http://www.devpinoy.com"; } //redirect to the selected location Response.Redirect(redirectionUrl); } catch { //throw our error. throw new Exception("cannot parse siteid... value must be out of range!"); } } } }

Kirtan Patel · Answer

Create A Class Named PassDataClass like below using System; using System.Collections.Generic; using System.Linq; using System.Web; public class DataPassClass { public static string Name ; public static string Age; } Now in Page 1 Write Code In Button1 to pass the Data to that class and We can retrieve content passed to class from page 2 Page 1 Code is Below protected void Button1_Click( object sender, EventArgs e) { DataPassClass.Name = GridView1.SelectedRow.Cells[0].Text; DataPassClass.Age = GridView1.SelectedRow.Cells[1].Text; Response.Redirect( "~/PassData.aspx" ); } And in Page 2 Write Code Like Below protected void Page_Load( object sender, EventArgs e) { Label1.Text = DataPassClass.Name; Label2.Text = DataPassClass.Age; } You can also Do this Task Without Creating Class File With Session But If you Create Class you can Manage the Code Efficiently.