Read e-book online ASP.NET Data Web Controls Kick Start PDF

By Scott Mitchell

ISBN-10: 0672325012

ISBN-13: 9780672325014

Using the extra complex gains of the information net Controls has many builders stumped. those controls are particularly easy to exploit by way of easy facts reveal. in spite of the fact that, they could do even more than purely current information. for instance, the DataGrid internet keep watch over permits sorting, paging, and modifying of information. additionally, those controls let for templating of information, which might be used to supply extra advanced perspectives. The DataGrid, DataList, and Repeater discussion board at the Microsoft ASP.NET boards bought greater than 2,100 posts within the first month and a half use, or over 35 posts consistent with day on common. because the net grasp of an ASP.NET website, Scott has additionally obtained a number of emails from readers and viewers asking questions on those net Controls. ASP.NET facts internet Controls may be an integral merchandise in each ASP.NET developer's toolbox.

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The final display property for the BoundColumn control is the DataFormatString property. This string property specifies how the data in the column should be formatted. The syntax for the format string is a bit strange at first glance: {0:formatString }. Format() method, which we saw in a code example at the end of Chapter 2. Format() method accepts a string as its first parameter, and then accepts a variable number of parameters of type Object. The string parameter is a format string, which can contain a mix of normal text and format placeholders.

Eval method. Eval() can accept takes an object and a string as input. NET, all objects contain metadata that describe the object, its type, its properties, events, me metadata to determine such high-level information about an object at run-time. For more information on reflection, che suggested link in the "On the Web" section at the end of this chapter. Part I: Displaying Data 33 34 Part I: Displaying Data Applying Style Information for the DataGrid and DataList Realize that both the DataGrid and DataList Web controls contain a number of properties to specify stylistic information.

On line 13, the Width of the column is set to 70% via the ItemStyle property. Because we are working with column-level display properties, this width setting is relative to the table width, meaning the first column will be 70% of the total width of the table. Note that in line 3 we specified that the table should have a Width of 50% (this is relative to the Web page). The second BoundColumn (lines 15 18) displays the price of the book. Line 16 sets the DataFormatString so that the value will be formatted as a currency.

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