Bind the query list in Sharepoint to the gridview

# Region data source binding
/// <Summary>
/// Data source binding
/// </Summary>
/// <Param name = "strquery"> </param>
Private void binddata (string strquery)
{
Using (spsite site = new spsite (comment. weburl) // http: // MOSS: 8000 name of your own website set
{
Foreach (spweb in site. allwebs)
{
Splist list = web. Lists ["task"];
Spquery query = new spquery ();
Query. viewfields = "<fieldref name = 'id'/> <fieldref name = 'title'/> <fieldref name = 'doccicon '/> <fieldref name = 'linktitle'/> <fieldref name = 'assignedto '/> <fieldref name = 'status'/> <fieldref name = 'priority'/> <fieldref name = 'duedate'/> "; // name of the field in the list
Query. query = strquery;
This. gridviewlist. datasource = List. getitems (query). getdatatable ();
This. gridviewlist. databind ();
}
}
}
# Endregion

// Obtain the query Conditions

Effect:

Method 1:

Private string getwhere ()
{
// Query the scheduled end time range
String strquery = "";
String stringbookingbegin = this.txt bookingtimeb. Text. Trim ();
String txtbookingtimee = this.txt bookingtimee. Text. Trim ();
If (stringbookingbegin. length> 0 & txtbookingtimee. Length <= 0)
{
Strquery + = "<Leq> <fieldref name = 'bookingendtime'/> <value includetimevalue = 'true' type = 'datetime'>" + stringbookingbegin + "</value> <Leq> ";
}
If (stringbookingbegin. Length <= 0 & txtbookingtimee. length> 0)
{
Strquery + = "<geq> <fieldref name = 'bookingendtime'/> <value includetimevalue = 'true' type = 'datetime'>" + txtbookingtimee + "</value> </ geq> ";
}
If (this.txt bookingtimee. Text. Trim (). length> 0 & this.txt bookingtimeb. Text. Trim (). length> 0)
{
Strquery + = string. format (@ "<and> <geq> <fieldref name = 'bookingendtime'/> <value type = 'datetime'> {0} </value> </geq>
<Leq> <fieldref name = 'bookingendtime'/> <value type = 'datetime'> {1} </value> </Leq> </and> ", stringbookingbegin, txtbookingtimee );
}
If (this. ddlmrname_query.selectedindex> 0)
{
Strquery + = "<EQ> <fieldref name = 'title'/> <value type = 'text'>" + this. ddlmrname_query.selecteditem.text.trim () + "</value> </EQ> ";
}
If (! String. isnullorempty (strquery. Trim ()))
{
Strquery = "<where> <and>" + strquery + "<EQ> <fieldref name = 'state'/> <value type = 'text'> valid </value> </EQ> </and> </where> ";
}
Else
{
Strquery = "<where> <EQ> <fieldref name = 'state'/> <value type = 'text'> valid </value> </EQ> </where>";
}
Return strquery;
}

Method 2: LINQ to SharePoint

# Region Query statistics
/// <Summary>
/// Query statistics button
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Protected void btnsearch_click (Object sender, eventargs E)
{
Mrbmodeldatacontext A = new mrbmodeldatacontext (comment. weburl );
Entitylist <meetingroombookingitem> somelist = A. getlist <meetingroombookingitem> ("list name"); //. Where <A. meetingroombooking> (getcon ())
VaR mrblists = from m in somelist
Where getcondition (m)
Group M by new {M. Title, M. region, M. bookingperson} into demgrp
Select
New
{
Mrbname = demgrp. Key. title,
Booingperson = demgrp. Key. bookingperson,
Bookingcount = demgrp. Count (),
Info = demgrp
};
Gridview1.datasource = mrblists;
Gridview1.databind ();

}
# Endregion

# Region Query Conditions
/// <Summary>
/// Query Conditions
/// </Summary>
/// <Param name = "MRL"> </param>
/// <Returns> </returns>
Private bool getcondition (meetingroombookingitem MRL)
{
// Query the scheduled start time period
Bool boolresult = true;

String stringbookingbegin = this.txt bookingtimeb. Text. Trim ();
String txtbookingtimee = this.txt bookingtimee. Text. Trim ();
If (stringbookingbegin. length> 0)
{
Boolresult & = MRL. bookingbegintime> = convert. todatetime (stringbookingbegin );
}

If (txtbookingtimee. length> 0)
{
Boolresult & = MRL. bookingbegintime <= convert. todatetime (txtbookingtimee );
}
If (this. ddlmrname_query.selectedindex> 0)
{
Boolresult & = MRL. Title. Equals (this. ddlmrname_query.selecteditem.text.trim ());
} If (this. ddlregion. selectedindex> 0)
{
Boolresult & = MRL. region. Equals (this. ddlregion. selectedvalue. Trim ());
}
Return boolresult;
}
# Endregion