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Showing posts with label ASP.NET. Show all posts

29 June 2011

Maximum Request Length Exceeded ASP.NET

I got this error Maximum request length exceeded while i was trying to upload several files, or a single big size file. As default, max file upload size is 4MB.
We can easily have a solution by not touching our asp.net c# source code.

Just add a single line of code in your Web.config file, and you are done.

<configuration>
  <system.web>
    <httpRuntime maxRequestLength="32768" />
  </system.web>
</configuration>

Now we will not get maximum request length exceeded error in asp.net.

25 May 2009

ASP.NET How To access Master Page Variables Class Members C#.NET

Sometimes we need to access to a variable in master page file.
For example I need to change the body onload event in html.

In the asp.net file, we simply cast our master page as its class name.

in master page aspx we add the code below.


<body onload="<%=myloadstr %>" >

in master page cs code we add the code below.
we declare it as public to access the variable.

public string myloadstr = "";

And add the code below in your asp.net cs source file.

((myMasterPage)this.Master).myloadstr = "here some javascript for load";

myMasterPage is the name of my masterpage class. We cast our asp.net page its masterpage, with "this.Master".

25 November 2008

C# and ASP.NET Create Table Dynamically

In the run-time sometimes we have to create table dynamically.

From the namespace System.Data DataTable DataColumn classes we can easily create table dynamically in C# and also in ASP.NET.

using System.Data;

// Create a DataTable instance
DataTable dTbl = new DataTable("myDynamicTable");

// Create a DataColumn instances

DataColumn dValue = new DataColumn();
DataColumn dMember = new DataColumn();

dValue.ColumnName = "Id";
dValue.DataType = Type.GetType("System.Int32");

dMember.ColumnName = "Name";
dMember.DataType = Type.GetType("System.String");

// Add these DataColumns into the DataTable

dTbl.Columns.Add(dValue);
dTbl.Columns.Add(dMember);

After you create table dynamically, you can add rows into it.
It is a good way to create DataRow from the table we create, with the function NewRow().

// Create a DataRow Instance from the table we create above, with NewRow();

DataRow myrow = dTbl.NewRow();

myrow["Id"] = 1;
myrow["Name"] = "Tux";

// Add the row into the table

dTbl.Rows.Add(myrow);

That's all for creating table dynamically in C# and also ASP.NET.