How to keep the page contents if it is posted back

Question

0.00/5 (No votes)

See more:

I need to keep the grid view which appears as a result of searching by id in the text field when the page id posted back. To illustrate, I have the link on grid view table takes me to another page then I have on the page link go back that grid view is not found because the page in posted back.

please help

C#

//pageload
protectedvoidPage_Load(objectsender,EventArgse)
{
Cache["MId"]=TextBox7.Text;
if(TextBox7.Text!=null)
{
view_back();
rep_bind();
}
if(IsPostBack)
{
label10.Text="";
view_back();
Cache["MId"]=TextBox7.Text;
grid.Visible=true;
}
}
//searchcode
protectedvoidSearch(objectsender,EventArgse)
{
if(TextBox7.Text!=null)
{
SqlConnectioncon1=newSqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
con1.Open();
stringquery="SElECtt1.*,t2.*,t3.*fromdbo.MaterialASt1INNERJOINdbo.ModuleRelationAst2ONt2.MID=t1.MIDINNERJOINdbo.UsersASt3ONt3.UniID=t2.UIdwheret3.user_type='Staff'andt1.IsDeleted=0ANDt2.MID='"+TextBox7.Text+"'";
SqlCommandcom=newSqlCommand(query,con1);
SqlDataReaderdr;
dr=com.ExecuteReader();
if(dr.HasRows)
{
dr.Read();
rep_bind();
label10.Text="";
grid.Visible=true;
}
if(!dr.HasRows)
{
label10.Text="ModuleIDNotFound!";
grid.Visible=false;
}
}
}
//methodfordisplayinggridview
privatevoidrep_bind()
{
if(TextBox7.Text!=null)
{
SqlConnectioncon1=newSqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
con1.Open();
stringquery="SElECtt1.*,t2.*,t3.*fromdbo.MaterialASt1INNERJOINdbo.ModuleRelationAst2ONt2.MID=t1.MIDINNERJOINdbo.UsersASt3ONt3.UniID=t2.UIdwheret3.user_type='Staff'andt1.IsDeleted=0ANDt2.MID='"+TextBox7.Text+"'";
SqlDataAdapterda=newSqlDataAdapter(query,con1);
DataSetds=newDataSet();
da.Fill(ds);
GridView1.DataSource=ds;
GridView1.DataBind();
}
}
//forclickonviewlinkongridviewtoredirecttoaontherpage
publicvoidView()
{
Response.Redirect("View.aspx?Id="+(MaID));
}
//thisIdidtokeepthecontentsofthepagewhenitloadedandIcalledinloadmethodbutnotworkingjustitkeepserrormessageforif(!dr.HasRows)
privatevoidview_back()
{
if(TextBox7.Text!=null)
{
SqlConnectioncon1=newSqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
con1.Open();
stringquery="SElECtt1.*,t2.*,t3.*fromdbo.MaterialASt1INNERJOINdbo.ModuleRelationAst2ONt2.MID=t1.MIDINNERJOINdbo.UsersASt3ONt3.UniID=t2.UIdwheret3.user_type='Staff'andt1.IsDeleted=0ANDt2.MID='"+TextBox7.Text+"'";
SqlCommandcom=newSqlCommand(query,con1);
SqlDataReaderdr;
dr=com.ExecuteReader();
if(dr.HasRows)
{
dr.Read();
rep_bind();
label10.Text="";
grid.Visible=true;
}
if(!dr.HasRows)
{
label10.Text="ModuleIDNotFound!";//thisappearswhenthepageispostedback
grid.Visible=false;
}
}
}

Posted 14-Aug-16 23:19pm

Member 12618369

Updated 14-Aug-16 23:57pm

F-ES Sitecore

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

ManojDhobale · Accepted Answer · 2016-08-14T23:57:00

Solution 1

Your Approach looks good, did you get any errors while doing so?

please refer
asp.net - Maintaining GridView current page index after navigating away from Gridview page - Stack Overflow[^]

Posted 14-Aug-16 23:57pm

ManojDhobale

Comments

Member 12618369 15-Aug-16 6:35am

thanks
I have found on this page on stack overflow this code but I could not understand what is the pageNumber and how can I get it, even thought, I need to show the grid view with its contents which based on search by ID not the permanent contents of the page
protected void GridViewIndexChanging(object sender, GridViewPageEventArgs e)
{
myGridView.PageIndex = e.NewPageIndex;
Session["pageNumber"] = e.NewPageIndex;
//whatever your page index changing does...
}