Is there a method to insert a hint or placeholder text within an asp:TextBox element? I am looking for a way to have text appear in the textbox that disappears when the user clicks on it. Can this be done using html / css?
Is there a method to insert a hint or placeholder text within an asp:TextBox element? I am looking for a way to have text appear in the textbox that disappears when the user clicks on it. Can this be done using html / css?
placeholder Attribute for ASP.net ControlsIf you want to add a placeholder text to your ASP.net control, consider using the placeholder attribute. Simply include it inside your control like this:
<asp:textbox id="txtWithHint" placeholder="hint" runat="server"/>
Your IDE may not recognize this attribute, but don't worry. Unregistered attributes are still rendered properly by ASP.net. In this case, the code will render as:
<input type="text" placeholder="hint"/>
To localize the hint text, consider using resources. For example, in your App_LocalResources/index.aspx.resx file, define the placeholder value like this:
<data name="WithHint.placeholder">
<value>hint</value>
</data>
Then assign the resource key to your control like so:
<asp:textbox id="txtWithHint" meta:resourcekey="WithHint" runat="server"/>
This will produce the same result as before.
If you prefer adding the placeholder attribute in the code-behind, you can do so using the AttributeCollection:
txtWithHint.Attributes.Add("placeholder", "hint");
For an example, you can simply do the following:
<input type="text" id="exampleInput" placeholder="Enter your text here"></input>
<asp:TextBox runat="server" ID="txtPassword" placeholder="Enter Password">
Although this code will function correctly, there may be instances where Intellisense does not display the placeholder attribute.
Implementing placeholder attributes programmatically:
txtFilterTerm.Attributes.Add("placeholder", "Search for: " + Filter.Name);
Alternatively,
txtFilterTerm.Attributes["placeholder"] = "Search for: " + Filter.Name;
Setting placeholder attributes in the aspx Page:
<asp:TextBox type="text" runat="server" id="txtFilterTerm" placeholder="Search here" />
Or,
<input type="text" id="txtFilterTerm" placeholder="Enter search term"/>
asp:TextBox ID="username" placeholder="insert your text here"
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